Publisher: Sage Publications   (Total: 1090 journals)

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Showing 1 - 200 of 1090 Journals sorted alphabetically
AADE in Practice     Hybrid Journal   (Followers: 6)
Abstracts in Anthropology     Full-text available via subscription   (Followers: 24)
Academic Pathology     Open Access   (Followers: 5)
Accounting History     Hybrid Journal   (Followers: 17, SJR: 0.527, CiteScore: 1)
Acta Radiologica     Hybrid Journal   (Followers: 1, SJR: 0.754, CiteScore: 2)
Acta Radiologica Open     Open Access   (Followers: 2)
Acta Sociologica     Hybrid Journal   (Followers: 39, SJR: 0.939, CiteScore: 2)
Action Research     Hybrid Journal   (Followers: 51, SJR: 0.308, CiteScore: 1)
Active Learning in Higher Education     Hybrid Journal   (Followers: 362, SJR: 1.397, CiteScore: 2)
Adaptive Behavior     Hybrid Journal   (Followers: 9, SJR: 0.288, CiteScore: 1)
Administration & Society     Hybrid Journal   (Followers: 14, SJR: 0.675, CiteScore: 1)
Adoption & Fostering     Hybrid Journal   (Followers: 24, SJR: 0.313, CiteScore: 0)
Adsorption Science & Technology     Open Access   (Followers: 8, SJR: 0.258, CiteScore: 1)
Adult Education Quarterly     Hybrid Journal   (Followers: 240, SJR: 0.566, CiteScore: 2)
Adult Learning     Hybrid Journal   (Followers: 44)
Advances in Dental Research     Hybrid Journal   (Followers: 9, SJR: 1.791, CiteScore: 4)
Advances in Developing Human Resources     Hybrid Journal   (Followers: 31, SJR: 0.614, CiteScore: 2)
Advances in Mechanical Engineering     Open Access   (Followers: 136, SJR: 0.272, CiteScore: 1)
Advances in Methods and Practices in Psychological Science     Full-text available via subscription   (Followers: 11)
Advances in Structural Engineering     Full-text available via subscription   (Followers: 46, SJR: 0.599, CiteScore: 1)
Advances in Tumor Virology     Open Access   (Followers: 3, SJR: 0.108, CiteScore: 0)
AERA Open     Open Access   (Followers: 10)
Affilia     Hybrid Journal   (Followers: 5, SJR: 0.496, CiteScore: 1)
Agrarian South : J. of Political Economy     Hybrid Journal   (Followers: 2)
Air, Soil & Water Research     Open Access   (Followers: 13, SJR: 0.214, CiteScore: 1)
Alexandria : The J. of National and Intl. Library and Information Issues     Full-text available via subscription   (Followers: 67)
Allergy & Rhinology     Open Access   (Followers: 4)
AlterNative : An Intl. J. of Indigenous Peoples     Full-text available via subscription   (Followers: 12, SJR: 0.194, CiteScore: 0)
Alternative Law J.     Hybrid Journal   (Followers: 11, SJR: 0.176, CiteScore: 0)
Alternatives : Global, Local, Political     Hybrid Journal   (Followers: 12, SJR: 0.351, CiteScore: 1)
American Behavioral Scientist     Hybrid Journal   (Followers: 24, SJR: 0.982, CiteScore: 2)
American Economist     Hybrid Journal   (Followers: 8)
American Educational Research J.     Hybrid Journal   (Followers: 231, SJR: 2.913, CiteScore: 3)
American J. of Alzheimer's Disease and Other Dementias     Hybrid Journal   (Followers: 19, SJR: 0.67, CiteScore: 2)
American J. of Cosmetic Surgery     Hybrid Journal   (Followers: 8)
American J. of Evaluation     Hybrid Journal   (Followers: 17, SJR: 0.646, CiteScore: 2)
American J. of Health Promotion     Hybrid Journal   (Followers: 34, SJR: 0.807, CiteScore: 1)
American J. of Hospice and Palliative Medicine     Hybrid Journal   (Followers: 43, SJR: 0.65, CiteScore: 1)
American J. of Law & Medicine     Full-text available via subscription   (Followers: 12, SJR: 0.204, CiteScore: 1)
American J. of Lifestyle Medicine     Hybrid Journal   (Followers: 6, SJR: 0.431, CiteScore: 1)
American J. of Medical Quality     Hybrid Journal   (Followers: 12, SJR: 0.777, CiteScore: 1)
American J. of Men's Health     Open Access   (Followers: 9, SJR: 0.595, CiteScore: 2)
American J. of Rhinology and Allergy     Hybrid Journal   (Followers: 9, SJR: 0.972, CiteScore: 2)
American J. of Sports Medicine     Hybrid Journal   (Followers: 215, SJR: 3.949, CiteScore: 6)
American Politics Research     Hybrid Journal   (Followers: 33, SJR: 1.313, CiteScore: 1)
American Review of Public Administration     Hybrid Journal   (Followers: 21, SJR: 2.062, CiteScore: 2)
American Sociological Review     Hybrid Journal   (Followers: 334, SJR: 6.333, CiteScore: 6)
American String Teacher     Full-text available via subscription   (Followers: 2)
Analytical Chemistry Insights     Open Access   (Followers: 26, SJR: 0.224, CiteScore: 1)
Angiology     Hybrid Journal   (Followers: 3, SJR: 0.849, CiteScore: 2)
Animation     Hybrid Journal   (Followers: 14, SJR: 0.197, CiteScore: 0)
Annals of Clinical Biochemistry     Hybrid Journal   (Followers: 10, SJR: 0.634, CiteScore: 1)
Annals of Otology, Rhinology & Laryngology     Hybrid Journal   (Followers: 17, SJR: 0.807, CiteScore: 1)
Annals of Pharmacotherapy     Hybrid Journal   (Followers: 54, SJR: 1.096, CiteScore: 2)
Annals of the American Academy of Political and Social Science     Hybrid Journal   (Followers: 48, SJR: 1.225, CiteScore: 3)
Annals of the ICRP     Hybrid Journal   (Followers: 4, SJR: 0.548, CiteScore: 1)
Anthropocene Review     Hybrid Journal   (Followers: 8, SJR: 3.341, CiteScore: 7)
Anthropological Theory     Hybrid Journal   (Followers: 42, SJR: 0.739, CiteScore: 1)
Antitrust Bulletin     Hybrid Journal   (Followers: 11)
Antiviral Chemistry and Chemotherapy     Open Access   (Followers: 2, SJR: 0.635, CiteScore: 2)
Antyajaa : Indian J. of Women and Social Change     Hybrid Journal  
Applied Biosafety     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)
Applied Psychological Measurement     Hybrid Journal   (Followers: 23, SJR: 1.17, CiteScore: 1)
Applied Spectroscopy     Full-text available via subscription   (Followers: 27, SJR: 0.489, CiteScore: 2)
Armed Forces & Society     Hybrid Journal   (Followers: 22, SJR: 0.29, CiteScore: 1)
Arts and Humanities in Higher Education     Hybrid Journal   (Followers: 43, SJR: 0.305, CiteScore: 1)
Asia Pacific Media Educator     Hybrid Journal   (Followers: 1, SJR: 0.23, CiteScore: 0)
Asia-Pacific J. of Management Research and Innovation     Full-text available via subscription   (Followers: 3)
Asia-Pacific J. of Public Health     Hybrid Journal   (Followers: 11, SJR: 0.558, CiteScore: 1)
Asian and Pacific Migration J.     Full-text available via subscription   (Followers: 9, SJR: 0.324, CiteScore: 1)
Asian Cardiovascular and Thoracic Annals     Hybrid Journal   (Followers: 2, SJR: 0.305, CiteScore: 0)
Asian J. of Comparative Politics     Hybrid Journal   (Followers: 5)
Asian J. of Legal Education     Full-text available via subscription   (Followers: 4)
Asian J. of Management Cases     Hybrid Journal   (Followers: 6, SJR: 0.101, CiteScore: 0)
ASN Neuro     Open Access   (Followers: 2, SJR: 1.534, CiteScore: 3)
Assessment     Hybrid Journal   (Followers: 17, SJR: 1.519, CiteScore: 3)
Assessment for Effective Intervention     Hybrid Journal   (Followers: 16, SJR: 0.578, CiteScore: 1)
Australasian Psychiatry     Hybrid Journal   (Followers: 18, SJR: 0.433, CiteScore: 1)
Australian & New Zealand J. of Psychiatry     Hybrid Journal   (Followers: 29, SJR: 1.801, CiteScore: 2)
Australian and New Zealand J. of Criminology     Hybrid Journal   (Followers: 534, SJR: 0.612, CiteScore: 1)
Australian J. of Career Development     Hybrid Journal   (Followers: 4)
Australian J. of Education     Hybrid Journal   (Followers: 42, SJR: 0.403, CiteScore: 1)
Australian J. of Management     Hybrid Journal   (Followers: 13, SJR: 0.497, CiteScore: 1)
Autism     Hybrid Journal   (Followers: 340, SJR: 1.739, CiteScore: 4)
Autism & Developmental Language Impairments     Open Access   (Followers: 12)
Behavior Modification     Hybrid Journal   (Followers: 12, SJR: 0.877, CiteScore: 2)
Behavioral and Cognitive Neuroscience Reviews     Hybrid Journal   (Followers: 26)
Bible Translator     Hybrid Journal   (Followers: 13)
Biblical Theology Bulletin     Hybrid Journal   (Followers: 20, SJR: 0.184, CiteScore: 0)
Big Data & Society     Open Access   (Followers: 52)
Biochemistry Insights     Open Access   (Followers: 7)
Bioinformatics and Biology Insights     Open Access   (Followers: 12, SJR: 1.141, CiteScore: 2)
Biological Research for Nursing     Hybrid Journal   (Followers: 7, SJR: 0.685, CiteScore: 2)
Biomarker Insights     Open Access   (Followers: 1, SJR: 0.81, CiteScore: 2)
Biomarkers in Cancer     Open Access   (Followers: 11)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Informatics Insights     Open Access   (Followers: 9)
Bioscope: South Asian Screen Studies     Hybrid Journal   (Followers: 3, SJR: 0.235, CiteScore: 0)
BMS: Bulletin of Sociological Methodology/Bulletin de Méthodologie Sociologique     Hybrid Journal   (Followers: 4, SJR: 0.226, CiteScore: 0)
Body & Society     Hybrid Journal   (Followers: 27, SJR: 1.531, CiteScore: 3)
Bone and Tissue Regeneration Insights     Open Access   (Followers: 2)
Brain and Neuroscience Advances     Open Access  
Breast Cancer : Basic and Clinical Research     Open Access   (Followers: 11, SJR: 0.823, CiteScore: 2)
British J. of Music Therapy     Hybrid Journal   (Followers: 8)
British J. of Occupational Therapy     Hybrid Journal   (Followers: 217, SJR: 0.323, CiteScore: 1)
British J. of Pain     Hybrid Journal   (Followers: 27, SJR: 0.579, CiteScore: 2)
British J. of Politics and Intl. Relations     Hybrid Journal   (Followers: 33, SJR: 0.91, CiteScore: 2)
British J. of Visual Impairment     Hybrid Journal   (Followers: 13, SJR: 0.337, CiteScore: 1)
British J.ism Review     Hybrid Journal   (Followers: 18)
BRQ Business Review Quarterly     Open Access   (Followers: 1)
Building Acoustics     Hybrid Journal   (Followers: 4, SJR: 0.215, CiteScore: 1)
Building Services Engineering Research & Technology     Hybrid Journal   (Followers: 3, SJR: 0.583, CiteScore: 1)
Bulletin of Science, Technology & Society     Hybrid Journal   (Followers: 8)
Business & Society     Hybrid Journal   (Followers: 13)
Business and Professional Communication Quarterly     Hybrid Journal   (Followers: 8, SJR: 0.348, CiteScore: 1)
Business Information Review     Hybrid Journal   (Followers: 17, SJR: 0.279, CiteScore: 0)
Business Perspectives and Research     Hybrid Journal   (Followers: 3)
Cahiers Élisabéthains     Hybrid Journal   (Followers: 1, SJR: 0.111, CiteScore: 0)
Calcutta Statistical Association Bulletin     Full-text available via subscription   (Followers: 1)
California Management Review     Hybrid Journal   (Followers: 32, SJR: 2.209, CiteScore: 4)
Canadian J. of Kidney Health and Disease     Open Access   (Followers: 6, SJR: 1.007, CiteScore: 2)
Canadian J. of Nursing Research (CJNR)     Hybrid Journal   (Followers: 13)
Canadian J. of Occupational Therapy     Hybrid Journal   (Followers: 142, SJR: 0.626, CiteScore: 1)
Canadian J. of Psychiatry     Hybrid Journal   (Followers: 27, SJR: 1.769, CiteScore: 3)
Canadian J. of School Psychology     Hybrid Journal   (Followers: 12, SJR: 0.266, CiteScore: 1)
Canadian Pharmacists J. / Revue des Pharmaciens du Canada     Hybrid Journal   (Followers: 3, SJR: 0.536, CiteScore: 1)
Cancer Control     Open Access   (Followers: 1)
Cancer Growth and Metastasis     Open Access   (Followers: 1)
Cancer Informatics     Open Access   (Followers: 4, SJR: 0.64, CiteScore: 1)
Capital and Class     Hybrid Journal   (Followers: 8, SJR: 0.282, CiteScore: 1)
Cardiac Cath Lab Director     Full-text available via subscription  
Cardiovascular and Thoracic Open     Open Access  
Career Development and Transition for Exceptional Individuals     Hybrid Journal   (Followers: 9, SJR: 0.44, CiteScore: 1)
Cartilage     Hybrid Journal   (Followers: 5, SJR: 0.889, CiteScore: 3)
Cell and Tissue Transplantation and Therapy     Open Access   (Followers: 2)
Cell Transplantation     Open Access   (Followers: 4, SJR: 1.023, CiteScore: 3)
Cephalalgia     Hybrid Journal   (Followers: 8, SJR: 1.581, CiteScore: 3)
Cephalalgia Reports     Open Access   (Followers: 3)
Child Language Teaching and Therapy     Hybrid Journal   (Followers: 35, SJR: 0.501, CiteScore: 1)
Child Maltreatment     Hybrid Journal   (Followers: 9, SJR: 1.22, CiteScore: 3)
Child Neurology Open     Open Access   (Followers: 5)
Childhood     Hybrid Journal   (Followers: 19, SJR: 0.894, CiteScore: 2)
Childhood Obesity and Nutrition     Open Access   (Followers: 11)
China Information     Hybrid Journal   (Followers: 7, SJR: 0.767, CiteScore: 2)
China Report     Hybrid Journal   (Followers: 10, SJR: 0.221, CiteScore: 0)
Chinese J. of Sociology     Full-text available via subscription   (Followers: 4)
Chronic Illness     Hybrid Journal   (Followers: 6, SJR: 0.672, CiteScore: 2)
Chronic Respiratory Disease     Hybrid Journal   (Followers: 9, SJR: 0.808, CiteScore: 2)
Chronic Stress     Open Access  
Citizenship, Social and Economics Education     Full-text available via subscription   (Followers: 6, SJR: 0.145, CiteScore: 0)
Cleft Palate-Craniofacial J.     Hybrid Journal   (Followers: 8, SJR: 0.757, CiteScore: 1)
Clin-Alert     Hybrid Journal   (Followers: 1)
Clinical and Applied Thrombosis/Hemostasis     Open Access   (Followers: 32, SJR: 0.49, CiteScore: 1)
Clinical and Translational Neuroscience     Open Access  
Clinical Case Studies     Hybrid Journal   (Followers: 3, SJR: 0.364, CiteScore: 1)
Clinical Child Psychology and Psychiatry     Hybrid Journal   (Followers: 45, SJR: 0.73, CiteScore: 2)
Clinical EEG and Neuroscience     Hybrid Journal   (Followers: 6, SJR: 0.552, CiteScore: 2)
Clinical Ethics     Hybrid Journal   (Followers: 10, SJR: 0.296, CiteScore: 1)
Clinical Medicine Insights : Arthritis and Musculoskeletal Disorders     Open Access   (Followers: 3, SJR: 0.537, CiteScore: 2)
Clinical Medicine Insights : Blood Disorders     Open Access   (SJR: 0.314, CiteScore: 2)
Clinical Medicine Insights : Cardiology     Open Access   (Followers: 6, SJR: 0.686, CiteScore: 2)
Clinical Medicine Insights : Case Reports     Open Access   (Followers: 1, SJR: 0.283, CiteScore: 1)
Clinical Medicine Insights : Circulatory, Respiratory and Pulmonary Medicine     Open Access   (Followers: 3, SJR: 0.425, CiteScore: 2)
Clinical Medicine Insights : Ear, Nose and Throat     Open Access   (Followers: 1)
Clinical Medicine Insights : Endocrinology and Diabetes     Open Access   (Followers: 33, SJR: 0.63, CiteScore: 2)
Clinical Medicine Insights : Oncology     Open Access   (Followers: 3, SJR: 1.129, CiteScore: 3)
Clinical Medicine Insights : Pediatrics     Open Access   (Followers: 3)
Clinical Medicine Insights : Psychiatry     Open Access   (Followers: 10)
Clinical Medicine Insights : Reproductive Health     Open Access   (Followers: 2, SJR: 0.776, CiteScore: 0)
Clinical Medicine Insights : Therapeutics     Open Access   (Followers: 1, SJR: 0.172, CiteScore: 0)
Clinical Medicine Insights : Trauma and Intensive Medicine     Open Access   (Followers: 4)
Clinical Medicine Insights : Urology     Open Access   (Followers: 3)
Clinical Medicine Insights : Women's Health     Open Access   (Followers: 4)
Clinical Nursing Research     Hybrid Journal   (Followers: 31, SJR: 0.471, CiteScore: 1)
Clinical Pathology     Open Access   (Followers: 3)
Clinical Pediatrics     Hybrid Journal   (Followers: 22, SJR: 0.487, CiteScore: 1)
Clinical Psychological Science     Hybrid Journal   (Followers: 12, SJR: 3.281, CiteScore: 5)
Clinical Rehabilitation     Hybrid Journal   (Followers: 76, SJR: 1.322, CiteScore: 3)
Clinical Risk     Hybrid Journal   (Followers: 5, SJR: 0.133, CiteScore: 0)
Clinical Trials     Hybrid Journal   (Followers: 21, SJR: 2.399, CiteScore: 2)
Clothing and Textiles Research J.     Hybrid Journal   (Followers: 25, SJR: 0.36, CiteScore: 1)
Common Law World Review     Full-text available via subscription   (Followers: 18)
Communication & Sport     Hybrid Journal   (Followers: 8, SJR: 0.385, CiteScore: 1)
Communication and the Public     Hybrid Journal   (Followers: 1)
Communication Disorders Quarterly     Hybrid Journal   (Followers: 17, SJR: 0.458, CiteScore: 1)
Communication Research     Hybrid Journal   (Followers: 21, SJR: 2.171, CiteScore: 3)
Community College Review     Hybrid Journal   (Followers: 9, SJR: 1.451, CiteScore: 1)
Comparative Political Studies     Hybrid Journal   (Followers: 262, SJR: 3.772, CiteScore: 3)
Compensation & Benefits Review     Hybrid Journal   (Followers: 8)
Competition & Change     Hybrid Journal   (Followers: 11, SJR: 0.843, CiteScore: 2)
Competition and Regulation in Network Industries     Full-text available via subscription   (Followers: 8, SJR: 0.143, CiteScore: 0)
Concurrent Engineering     Hybrid Journal   (Followers: 3, SJR: 0.642, CiteScore: 2)
Conflict Management and Peace Science     Hybrid Journal   (Followers: 40, SJR: 2.441, CiteScore: 1)
Contemporary Drug Problems     Full-text available via subscription   (Followers: 3, SJR: 0.609, CiteScore: 2)
Contemporary Education Dialogue     Hybrid Journal   (Followers: 5, SJR: 0.102, CiteScore: 0)
Contemporary Issues in Early Childhood     Full-text available via subscription   (Followers: 8, SJR: 0.766, CiteScore: 1)
Contemporary Review of the Middle East     Full-text available via subscription   (Followers: 12)
Contemporary Sociology : A J. of Reviews     Full-text available via subscription   (Followers: 35, SJR: 0.195, CiteScore: 0)
Contemporary Voice of Dalit     Full-text available via subscription   (Followers: 1)
Contexts     Hybrid Journal   (Followers: 6)

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Similar Journals
Journal Cover
Advances in Mechanical Engineering
Journal Prestige (SJR): 0.272
Citation Impact (citeScore): 1
Number of Followers: 136  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1687-8132 - ISSN (Online) 1687-8140
Published by Sage Publications Homepage  [1090 journals]
  • Effect of roller bearing elasticity on spiral bevel gear dynamics

    • Authors: Xia Hua, Zaigang Chen
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      The dynamics of spiral bevel gears have gained increasing importance due to concerns relating to noise and durability. This is because the mesh force acting on the gear teeth is amplified under dynamic conditions, potentially reducing the fatigue life of the gears. Furthermore, a sizable dynamic force can be transmitted to the housing, inducing structure-born gear whine. The elasticity of the bearings can influence the dynamics of spiral bevel gears. In this article, the finite element formulation of a spiral bevel geared rotor dynamic system is applied to investigate the influence of bearing elasticity on the dynamics of spiral bevel gears. The designs and configurations of rear axles are modeled and analyzed for real-world applications, to gain an enhanced practical understanding of the effect of bearing stiffness on spiral bevel gear dynamics.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-09T10:28:04Z
      DOI: 10.1177/1687814020938895
      Issue No: Vol. 12, No. 7 (2020)
       
  • Operation of assistive apparatus through recognition of human behavior:
           Development and experimental evaluation of chair-typed assistive apparatus
           of nine-link mechanism with 1 degree of freedom

    • Authors: Myoungjae Jun, Hieyong Jeong, Yuko Ohno
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Because of deterioration of strength, range of joint motion, and balance ability, most care-dependent older adults require assistance to move from a seated position to a standing position. Although many sit-to-stand assisting apparatuses consisting of a seat, power transmission mechanism, and sensors have been developed, most of movements depend several actuators as the power transmission mechanism. This study aims to develop the chair-typed apparatus of nine-link mechanism with 1 degree of freedom at first, then to prove the possibility that the apparatus can be operated through the recognition of human behavior by one sensor. Here, the nine-link mechanism is divided into two mechanisms: the five link for raising the height; the four link for rotating. The mechanical part enables two input links for two mechanisms to be driven by one linear actuator simultaneously. The measurement with the infrared sensor enables the assistive apparatus to be operated automatically while patterns from measured data help the apparatus recognize what the user want to do: one is the sit-to-stand movement; the other is the stand-to-sit movement. It is discussed that the operating method through the human behavior is helpful for most older adults who are not familiar with the operation of machine.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-09T10:26:04Z
      DOI: 10.1177/1687814020938899
      Issue No: Vol. 12, No. 7 (2020)
       
  • A computing method for bending problem of thin plate on Pasternak
           foundation

    • Authors: Jiarong Gan, Hong Yuan, Shanqing Li, Qifeng Peng, Huanliang Zhang
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      The governing equation of the bending problem of simply supported thin plate on Pasternak foundation is degraded into two coupled lower order differential equations using the intermediate variable, which are a Helmholtz equation and a Laplace equation. A new solution of two-dimensional Helmholtz operator is proposed as shown in Appendix 1. The R-function and basic solutions of two-dimensional Helmholtz operator and Laplace operator are used to construct the corresponding quasi-Green function. The quasi-Green’s functions satisfy the homogeneous boundary conditions of the problem. The Helmholtz equation and Laplace equation are transformed into integral equations applying corresponding Green’s formula, the fundamental solution of the operator, and the boundary condition. A new boundary normalization equation is constructed to ensure the continuity of the integral kernels. The integral equations are discretized into the nonhomogeneous linear algebraic equations to proceed with numerical computing. Some numerical examples are given to verify the validity of the proposed method in calculating the problem with simple boundary conditions and polygonal boundary conditions. The required results are obtained through MATLAB programming. The convergence of the method is discussed. The comparison with the analytic solution shows a good agreement, and it demonstrates the feasibility and efficiency of the method in this article.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-09T10:25:24Z
      DOI: 10.1177/1687814020939333
      Issue No: Vol. 12, No. 7 (2020)
       
  • Observer-based trajectory tracking control with preview action for a class
           of discrete-time Lipschitz nonlinear systems and its applications

    • Authors: Xiao Yu, Fucheng Liao
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      In this article, the observer-based preview tracking control problem is investigated for a class of discrete-time Lipschitz nonlinear systems. To convert the observer-based trajectory tracking problem into a regulation problem, the classical difference technique is used to construct an augmented error system containing tracking error signal and previewable reference knowledge. Then, a state feedback controller with specific structures is taken into consideration. Sufficient design condition is established, based on the Lyapunov function approach, to guarantee the asymptotic stability of the closed-loop system. By means of some special mathematical derivations, the bilinear matrix inequality condition is successfully transformed into a tractable linear matrix inequality. Meanwhile, the gains of both observer and tracking controller can be computed simultaneously only in one step. As for the original system, the developed tracking control law is composed of an integrator, an observer-based state feedback controller, and a preview action term related to the reference signal. Finally, two numerical examples are provided to demonstrate the effectiveness of the theoretical method.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-09T06:27:17Z
      DOI: 10.1177/1687814020922654
      Issue No: Vol. 12, No. 7 (2020)
       
  • Fault diagnosis of head sheaves based on vibration measurement and data
           mining method

    • Authors: Chi Ma, Jiannan Yao, Xinming Xiao, Xiaohan Zhang, Yuqiang Jiang
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Head sheaves are critical components in a mine hoisting system. It is inconvenient for workers to climb up to the high platform for overhaul and maintenance, and there is an urgent need for condition monitoring and fault diagnosis of head sheaves. In this article, Fault Tree Analysis is employed to investigate the faults of head sheaves, and headframe inclination, bearing faults, and head sheave swing are the three focal faults discussed. A test rig is built to simulate these three faults and collect vibration signals at bearing blocks. Based on vibration signals, some characteristic parameters are calculated, and together with the fault labels, a sample set is established. Before the selection of an excellent data mining method, these features are screened according to their significance, and then, gain–percentile chart, response–percentile chart, and prediction accuracy are used as the criteria to make a comparison between data mining algorithms. The result shows the boosted tree algorithm outperforms others and presents excellent performance on the evaluation of head sheave faults. Finally, this method is verified on a data set of 20 samples, and each case is identified correctly, which illustrates its high applicability.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-08T07:46:17Z
      DOI: 10.1177/1687814020941331
      Issue No: Vol. 12, No. 7 (2020)
       
  • Development of a control law to improve the handling qualities for
           short-range air-to-air combat maneuvers

    • Authors: Chong-Sup Kim, Chang-Ho Ji, Byoung Soo Kim
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Modern fighter aircraft have been designed to have high maneuverability in order to preoccupy strategic superiority in short-range air-to-air combat between fighter aircraft in warfare. Digital fly-by-wire flight control system design is aimed at providing good handling qualities for all mission task elements over the entire flight envelope. To provide both excellent gross acquisition and fine tracking compatibility, simultaneously for air-to-air combat maneuvers, this article presents a common longitudinal control law design of a task-dependent self-adjusting command-path pilot prefilter gain scheduler within the same control law design architecture and response type based on nonlinear dynamic inversion control. We perform the frequency- and time-domain analyses based on the mathematical model of T-50 advanced trainer aircraft to evaluate the basic flying qualities of the proposed control method. Furthermore, the pilot evaluation is performed to evaluate the gross acquisition and fine tracking capability for air-to-air tracking maneuvers in a handling quality simulator. The evaluation results reveal that the proposed control method improves the fine tracking capability without the degradation of gross acquisition.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-08T07:46:07Z
      DOI: 10.1177/1687814020936790
      Issue No: Vol. 12, No. 7 (2020)
       
  • Dynamic modeling of the Stewart platform for the NanShan Radio Telescope

    • Authors: Guljaina Kazezkhan, Binbin Xiang, Na Wang, Aili Yusup
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      The NanShan Radio Telescope is a 26-m fully steerable radio telescope, and it adopts a 6-UPU Stewart platform with electric motors to adjust and align the position of the subreflector. In order to analyze the actual dynamic performance and control the Stewart platform of the NanShan Radio Telescope, this article models the inverse dynamic of the Stewart platform using the virtual work approach. The model improves the accuracy of the dynamic equations and considered the pitching motion of the base platform in the practical application of the radio telescope. Dynamic simulations of the Stewart platform are implemented, the conditions of the passive rotation of the piston of actuators are considered, and the results show that the effect of the passive rotation of the pistons of the actuators is important to obtain more accurate result. The conditions of the system under the different elevation angles of the radio telescope are also considered, and the results show that the change of the elevation angles of the radio telescope has a great impact on the driving forces of the Stewart platform. It is known from the analysis that the passive rotation of pistons of actuators and the elevation movement of the primary reflector of the radio telescope are not ignorable for the precise analysis and control of the Stewart platform of the NanShan Radio Telescope.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-08T07:45:57Z
      DOI: 10.1177/1687814020940072
      Issue No: Vol. 12, No. 7 (2020)
       
  • On the cutting force of micro-textured polycrystalline cubic boron nitride
           cutting tool for powder metallurgy materials

    • Authors: Haidong Yang, Zhengguang Han, Xiquan Xia, Qidong Wang, Juchen Zhang, Weijie Chang, Zhenhua Qing, Huohong Tang, Shunhua Chen
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Micro-textured cutting tools were widely reported due to the improved cutting performance, for example, the reduction of cutting forces. However, the cutting performance is significantly dependent on the parameters of the micro-textures. In this work, some polycrystalline cubic boron nitride tools with designed circular micro-textures were designed and manufactured by laser processing technology, and used to machine powder metallurgy materials. The effect of micro-texture parameters (diameter, depth and density) on the cutting forces (FX, FY, FZ and Fr) was studied by an orthogonal test, the effect of cutting velocity on the cutting force was also studied. The results have shown that the pit diameter and depth have more significant effect on the cutting forces than the cutting velocity and pit density. As compared with the non-textured tools, the textured tools can effectively reduce the cutting forces and the optimal cutting forces were achieved at parameters as 230 μm for diameter, 90 μm for depth, 20% for density and 110 m/min for cutting velocity. The present findings are of significance for the design of polycrystalline cubic boron nitride cutting tools and the processing of powder metallurgy materials.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-08T07:45:38Z
      DOI: 10.1177/1687814020938496
      Issue No: Vol. 12, No. 7 (2020)
       
  • Numerical simulation of performance and emission of marine diesel engine
           under different gravity conditions

    • Authors: Xiuwei Lu, Peng Geng
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      A computational fluid dynamics model of the marine diesel engine was established and validated, and the simulation studies were carried out using this model. Different gravity conditions were set in the computational fluid dynamics model to investigate their effect on marine diesel emissions and performance. By comparing the simulation results under different basic grid sizes, 1.2 mm was selected as the basic grid size of the computational fluid dynamics model. The model uses the experimental data including cylinder pressure, heat release rate, and nitrogen oxides (NOx) emissions to calibrate and validate the model. The simulation results are very close to the experimental data, and slight errors are also within the allowable range. In particular, when considering the heat transfer of the combustion chamber wall, the simulation results of the heat release rate are closer to the experimental data. The simulation results show that gravity has a slight effect on cylinder pressure and heat release rate, and has a certain degree of effect on fuel spray and atomization. The penetration length of the fuel is proportional to the gravity, and the maximum deviation of the Sauter mean diameter of the droplet is 25.74%. The spray and atomization process of fuel directly affects combustion and emissions. The maximum deviation of NOx emissions is 6.03%, which is reduced from 7.46 to 7.01 g/kW·h. Finally, the three-dimensional simulation results of temperature, equivalence ratio, and NOx emission of different crank angles under different gravity conditions are compared.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-07T04:57:27Z
      DOI: 10.1177/1687814020927509
      Issue No: Vol. 12, No. 7 (2020)
       
  • Fuzzy Neural Network PID–based constant deceleration compensation device
           for the brakes of mining hoists

    • Authors: Chi Ma, Suzhi Tian, Xinming Xiao, Yuqiang Jiang
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      In comparison with constant torque brakes, constant deceleration brakes are more advantageous for the safety of mining hoists, but complete set of such products manufactured by big companies are not what ordinary mining enterprises can afford. As an alternative solution, this article develops a constant deceleration compensation device, which adds the function of constant deceleration brake onto the original brakes. Control strategy based on Fuzzy Neural Network PID is investigated and simulated with the combination of AMEsim and Simulink. An actual device is built and tested in real industrial field. The application illustrates the feasibility of this constant deceleration compensation device, which can achieve constant decelerations within a very short time. This device will prevent dangerous decelerations from happening to hoists at a much lower cost, and greatly improve the safety and reliability of mining hoists.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:31:16Z
      DOI: 10.1177/1687814020937568
      Issue No: Vol. 12, No. 7 (2020)
       
  • Study of free convective unsteady magnetohydrodynamic flow of Oldroyd-B
           fluid in the presence of chemical reaction

    • Authors: Saif Ullah, Kareem Akhtar, Nadeem Alam Khan, Mehwish Mubarik
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      This article is concerned with the study of free convective unsteady magnetohydrodynamic flow of the incompressible Oldroyd-B fluid along with chemical reaction. The fluid flows on a vertical plate that is impulsively brought in motion in the presence of a constant magnetic field which is applied transversely on the fluid. The structure has been modeled in the form of governing differential equations, which are then nondimensionalized and solved using a numerical technique, that is, Crank–Nicolson’s scheme to obtain solutions for velocity field, temperature distribution, and concentration profile. These solutions satisfy the governing equations as well as all initial and boundary conditions. The obtained solutions are new, and previous literature lacks such derivations. Some previous solutions can be recovered as limiting cases of our general solutions. The effects of thermophysical parameters, such as Reynolds number, Prandtl number, thermal Grashof number, modified Grashof number, Darcy number, Schmidt number, dissipation function, magnetic field, radiation–conduction, chemical reaction parameter, relaxation and retardation times on the velocity field, temperature, and concentration of fluid, are also examined and discussed graphically.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:28:44Z
      DOI: 10.1177/1687814020937518
      Issue No: Vol. 12, No. 7 (2020)
       
  • Physiological flow of biomedical compressible fluids inside a ciliated
           symmetric channel

    • Authors: Anber Saleem, Aleesha Qaiser, Sohail Nadeem
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      This article studies the flow induced by cilia for a compressible Jeffrey fluid. The investigation is carried out for electrically conducting magnetohydrodynamic fluid in a space of porous media. The fluid flows inside a two-dimensional symmetric channel. The flow is demonstrated considering small magnetic Reynolds number and velocity slip at the wall. Perturbation technique is used in finding the solution. For different values of parameters, the net axial velocity is computed up to second-order calculations. It is interesting to note that Jeffrey fluid fluctuations decline as it changes from hydrodynamics to hydromagnetic fluid and as a consequence the retardation time turns out to be weak.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:27:16Z
      DOI: 10.1177/1687814020938478
      Issue No: Vol. 12, No. 7 (2020)
       
  • Suspending force modeling based on nonlinear acoustics and high-speed
           running experiments for an ultrasonic journal bearing

    • Authors: He Li, Yu Wang, Deen Bai, Fuyan Lyu, Kuidong Gao, Qingliang Zeng
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      As a kind of promising noncontact bearings, ultrasonic bearings actuated by smart materials such as lead zirconate titanate ceramics show a good application prospect in high-speed machines and precision-measuring devices. The suspending force is one of the most important parameters that play a dominated role on the bearing’s static and dynamic performance. A suspending force model based on acoustic radiation theory for cylindrical object near sound source is built to predict the radial carrying capacity of an ultrasonic bearing actuated by three piezoelectric transducers. To validate the model, an ultrasonic bearing prototype is developed and a testing system is established. For observing the bearing’s dynamic running performance at high speeds, the bearing’s running experiment is carried out and the rotor center’s trajectory data and frequency spectrum are acquired to analyze the bearing’s dynamic characteristics at high speeds. The suspending force model and running performance experiments will contribute to the design, detection, and test of this type of bearings.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:26:50Z
      DOI: 10.1177/1687814020940470
      Issue No: Vol. 12, No. 7 (2020)
       
  • Analytical study of floating effects on load sharing characteristics of
           planetary gearbox for off-road vehicle

    • Authors: Woo-Jin Chung, Joo-Seon Oh, Hyun-Woo Han, Ji-Tae Kim, Young-Jun Park
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Uneven load sharing of a planetary gear set is the main cause of preventing the miniaturization and weight reduction of a planetary gearbox. Non-torque loads and carrier pinhole position errors are the main factors that worsen the load-sharing characteristics. However, their effects are seldom analyzed at a system level especially for an off-road vehicle. To make up this gap, some simulation models are proposed to investigate the effects of floating members on the load-sharing characteristics and the strength of a planetary gear set with non-torque load and carrier pinhole position error. When the error is not considered, the mesh load factor converges to unity irrespective of the type and number of floating members and the safety factors for pitting and bending are increased slightly. When the carrier pinhole position error is considered, the mesh load factor dramatically worsens. Although it is improved using the floating members, it does not converge to unity. However, the bending safety factor of the planet gear with the error is increased by 26%. This indicates that the design modification for the original planetary gearbox is needed to satisfy the safety factor requirement, but the problem is solved using only floating members.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:26:16Z
      DOI: 10.1177/1687814020940468
      Issue No: Vol. 12, No. 7 (2020)
       
  • Experimental assessment of regenerated lube oil in spark-ignition engine
           for sustainable environment

    • Authors: Muhammad Usman, Syed Saqib, Syed Wasim Hassan Zubair, Muneeb Irshad, Ammar Hussain Kazmi, Ahmed Noor, Hafiz Umer Zaman, Zaheer Nasir, Muhammad Ali Ijaz Malik
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Lube oils are the viscous petroleum products used in automobiles to reduce the friction. The eventual fate of lube oil is either incineration or dumping off into ground, but these resources cannot be disposed off easily due to their libellous effects on environment. This article aims to study the regeneration of deteriorated oil and impact of regenerated oil on engine performance and engine emissions. The effectuality of regeneration is studied by comparing the results of the key parameters (specific gravity, viscosity, total acid number, flash point and ash contents) of regenerated oil with that of non-deteriorated and deteriorated oil. Engine performance and emissions for regenerated oil were compared with non-deteriorated and deteriorated oil. The brake power and torque increased by 4.1% and 4.6%, respectively, following the regeneration process. After re-refining of lube oil, specific gravity, flash point, kinematic viscosity, ash content and total acid number improved by 6.75%, 2.66%, 15.6%, 1.7% and 10.64%, respectively. In case of deteriorated oil, HC, NOx and CO increased by 23.6%, 42.2% and 11.8%, respectively. But after regeneration of oil, these emissions decreased as compared with deteriorated oil. It can be reasoned out that regeneration mends oil properties and has positive impact over engine performance and emissions.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-06T09:25:36Z
      DOI: 10.1177/1687814020940451
      Issue No: Vol. 12, No. 7 (2020)
       
  • A novel prediction method for rail grinding profile based on an interval
           segmentation approach and accurate area integral with cubic NURBS

    • Authors: Huan Xie, Xiang Chen, Wei Zeng, Wensheng Qiu, Tao Ren
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      Rail grinding profile prediction in different grinding patterns is important to improve the grinding quality for the rail grinding operation site. However, because of high-dimensional and strong nonlinearity between grinding amount and grinding parameters, the prediction error and computational cost is relatively high. As a result, the accuracy and efficiency of conventional methods cannot be guaranteed. In this article, an accurate and efficient rail grinding profile prediction method is proposed, in which an interval segmentation approach is proposed to improve the prediction efficiency based on the geometric characteristic of a rail profile. Then, the accurate area integral approach with cubic NURBS is used as the grinding area calculation approach to improve the prediction accuracy. Finally, the normal length index is introduced to evaluate the prediction accuracy. The accuracy and stability of the proposed method are verified by comparing a conventional approach based on a practical experiment. The results demonstrate that the proposed method can predict the rail grinding profile in any grinding pattern with high accuracy and efficiency. Meanwhile, its prediction stability basically agrees with the conventional approach.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-03T05:48:26Z
      DOI: 10.1177/1687814020938493
      Issue No: Vol. 12, No. 7 (2020)
       
  • Blood physiological and flow characteristics within coronary artery
           circulatory network for human heart based on vascular fractal theory

    • Authors: Yan-li Chen, Gui-Qiang Bai, Liu-xing Ren, Yang Bai, Meng-yao Sun, Tao Shang, Chun-ye Ma, Da-shi Ma
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      To analyze the fractal form of the vascular network in the human circulatory system, the optimal transport effect has been achieved from the point of view of biological evolution. The blood flow mathematical models based on the fractal theory for capillary network and arteriole–capillary vascular fractal network were established using theory derivation, and the blood flow characteristics, dynamic flow resistance effects, and vascular fractal physiology property based on the fractal porous medium theory for the coronary artery circulatory network were analyzed under the consideration of some influencing factors, namely, non-Newtonian fluid characteristics of blood, hemocoagulation and embolization effect in capillaries, and plasma mass flow effects. Moreover, the Poiseuille flow equation is modified by introducing the correction function, and the flow model of blood in the vascular network is established. Obviously, the relationship characteristics between blood flow and bifurcation grade in fractal vascular, fractal dimension in the arteriole–capillary vascular network, fractal dimensions of the diameter of capillary tubular diameter, fractal dimensions of capillary blood vessels, blood Casson yield stress, and ratio of red blood cell radius to capillary diameter can be obtained. And the relationship characteristics between blood flow resistance and ratio of erythrocyte radius to capillary diameter, ratios of the distance between adjacent red blood cells to the radius of red cells, and bifurcation grade can be obtained. Finally, the clinical verification tests were accomplished to verify the theory is worthy of authenticity and rationality where the curve tendencies are very similar with those obtained by numerical simulations based on the theoretical models and experimental test showed that the theoretical calculation and simulation analysis of blood circulation system of fractal vascular network were reasonable and applicable by means of experimental relative method because of the maximum relative error is less than 10%, whatever fractal dimension m changes under different conditions.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-03T05:47:54Z
      DOI: 10.1177/1687814020933385
      Issue No: Vol. 12, No. 7 (2020)
       
  • Centrifugal pump wear for solid–liquid two-phase flows based on
           computational fluid dynamics–discrete element method coupling

    • Authors: Yi Li, Xiaodong Zeng, Wenshuai Lv, Zhaohui He
      Abstract: Advances in Mechanical Engineering, Volume 12, Issue 7, July 2020.
      In the conveying process of a solid–liquid two-phase medium, the wear of the flow passage components is unavoidable. In this study, the solid–liquid two-phase flow in a centrifugal pump was numerically simulated by computational fluid dynamics–discrete element method coupling. For particle diameters up to 3 mm, the particle–particle and particle–wall interactions were considered in the simulation. Two-phase performance and wear experiments for different flow rates and particle concentrations were conducted. The wear experiment was carried out for 48 h at each mass concentration. In these experiments, a paint film method was used to display the wear position, and the wall thickness of the flow passage was measured using an ultrasonic thickness gauge. The results show that the instantaneous wear rate of the impeller, volute, and wear plate in the pump changed periodically with the impeller rotation. The volute wall wear was related to the particle movement. With the increase in the particle mass concentration, the wear rate increased. However, the rate of increase of the wear rate decreased because the particles moved to the wall in the volute to form a particle layer. Increasing the concentration did not linearly increase the effect of the particles on the wall.
      Citation: Advances in Mechanical Engineering
      PubDate: 2020-07-02T05:47:03Z
      DOI: 10.1177/1687814020937951
      Issue No: Vol. 12, No. 7 (2020)
       
 
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