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  Subjects -> ENGINEERING (Total: 2578 journals)
    - CHEMICAL ENGINEERING (219 journals)
    - CIVIL ENGINEERING (225 journals)
    - ELECTRICAL ENGINEERING (133 journals)
    - ENGINEERING (1346 journals)
    - ENGINEERING MECHANICS AND MATERIALS (403 journals)
    - HYDRAULIC ENGINEERING (58 journals)
    - INDUSTRIAL ENGINEERING (90 journals)
    - MECHANICAL ENGINEERING (104 journals)

ENGINEERING (1346 journals)                  1 2 3 4 5 6 7 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 8)
3D Research     Hybrid Journal   (Followers: 21)
AAPG Bulletin     Hybrid Journal   (Followers: 9)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 8)
ACS Nano     Hybrid Journal   (Followers: 336)
Acta Geotechnica     Hybrid Journal   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 3)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 10)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 5)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 10)
Advanced Journal of Graduate Research     Open Access  
Advanced Nonlinear Studies     Hybrid Journal  
Advanced Science     Open Access   (Followers: 8)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 11)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 16)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 6)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 9)
Advances in Engineering Software     Hybrid Journal   (Followers: 29)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 17)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 25)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 30)
Advances in Nonlinear Analysis     Open Access  
Advances in Operations Research     Open Access   (Followers: 12)
Advances in OptoElectronics     Open Access   (Followers: 6)
Advances in Physics Theories and Applications     Open Access   (Followers: 17)
Advances in Polymer Science     Hybrid Journal   (Followers: 46)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Remote Sensing     Open Access   (Followers: 52)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aerobiologia     Hybrid Journal   (Followers: 3)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 6)
AIChE Journal     Hybrid Journal   (Followers: 34)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 2)
Al-Nahrain Journal for Engineering Sciences     Open Access  
Alexandria Engineering Journal     Open Access   (Followers: 2)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 9)
American Journal of Engineering Education     Open Access   (Followers: 13)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 26)
Anadolu University Journal of Science and Technology A : Applied Sciences and Engineering     Open Access  
Annals of Civil and Environmental Engineering     Open Access   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Pure and Applied Logic     Open Access   (Followers: 4)
Annals of Regional Science     Hybrid Journal   (Followers: 8)
Annals of Science     Hybrid Journal   (Followers: 8)
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 7)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 20)
Applied Clay Science     Hybrid Journal   (Followers: 6)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 14)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4)
Applied Nanoscience     Open Access   (Followers: 9)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 6)
Applied Sciences     Open Access   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 7)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 6)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 9)
Arid Zone Journal of Engineering, Technology and Environment     Open Access   (Followers: 2)
Arkiv för Matematik     Hybrid Journal   (Followers: 2)
ASEE Prism     Full-text available via subscription   (Followers: 3)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 2)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 9)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
AURUM : Mühendislik Sistemleri ve Mimarlık Dergisi = Aurum Journal of Engineering Systems and Architecture     Open Access  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autocracy : Jurnal Otomasi, Kendali, dan Aplikasi Industri     Open Access  
Automotive Experiences     Open Access  
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 8)
Avances en Ciencias e Ingeniería     Open Access  
Avances en Ciencias e Ingenierías     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 2)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
Batteries     Open Access   (Followers: 7)
Bautechnik     Hybrid Journal   (Followers: 2)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 29)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Motor Trade Survey     Full-text available via subscription  
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Beyond : Undergraduate Research Journal     Open Access  
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Bilge International Journal of Science and Technology Research     Open Access  
Biofuels Engineering     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 13)
Biomedical Engineering     Hybrid Journal   (Followers: 16)
Biomedical Engineering     Hybrid Journal   (Followers: 2)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 19)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 8)
Biomedical Science and Engineering     Open Access   (Followers: 5)
Biomicrofluidics     Open Access   (Followers: 5)
BioNanoMaterials     Open Access   (Followers: 2)
Biotechnology Progress     Hybrid Journal   (Followers: 41)
Bitlis Eren University Journal of Science and Technology     Open Access  
Black Sea Journal of Engineering and Science     Open Access  
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 13)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 13)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 15)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers Droit, Sciences & Technologies     Open Access  
Calphad     Hybrid Journal   (Followers: 2)
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 30)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 47)
Carbon Resources Conversion     Open Access   (Followers: 1)
Carpathian Journal of Electronic and Computer Engineering     Open Access  
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 6)
Case Studies in Thermal Engineering     Open Access   (Followers: 7)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 10)
Catalysis Science and Technology     Hybrid Journal   (Followers: 10)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 7)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal  
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 3)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chaos, Solitons & Fractals : X     Open Access  
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia y Tecnología     Open Access  
Ciencias Holguin     Open Access   (Followers: 3)
CienciaUAT     Open Access   (Followers: 1)
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 13)
City, Culture and Society     Hybrid Journal   (Followers: 23)
Clay Minerals     Hybrid Journal   (Followers: 10)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Clinical Science     Hybrid Journal   (Followers: 8)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 6)
Coatings     Open Access   (Followers: 4)
Cogent Engineering     Open Access   (Followers: 3)
Cognitive Computation     Hybrid Journal   (Followers: 3)
Color Research & Application     Hybrid Journal   (Followers: 3)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 15)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 16)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Communications in Information Science and Management Engineering     Open Access   (Followers: 4)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 30)
Composite Interfaces     Hybrid Journal   (Followers: 8)
Composite Structures     Hybrid Journal   (Followers: 309)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 246)
Composites Part B : Engineering     Hybrid Journal   (Followers: 278)
Composites Science and Technology     Hybrid Journal   (Followers: 215)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
Computation     Open Access   (Followers: 1)

        1 2 3 4 5 6 7 | Last

Similar Journals
Journal Cover
Advances in Engineering Software
Journal Prestige (SJR): 1.159
Citation Impact (citeScore): 4
Number of Followers: 29  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0965-9978
Published by Elsevier Homepage  [3183 journals]
  • An improved computational framework based on the dual boundary element
           method for three-dimensional mixed-mode crack propagation analyses
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Sergio Gustavo Ferreira Cordeiro, Edson Denner Leonel This study presents an improved computational framework based on the Dual Boundary Element Method (DBEM) for modelling three-dimensional mixed-mode fatigue crack propagation in geometrically complex structural components. The improvements are: (i) an input data scheme based on an alternative collocation strategy, which enables the discretization of each Non-Uniform Rational B-splines (NURBS) surfaces of geometrical models without any concerning about conform meshes at the surface´s intersections. (ii) a variational formulation defined over the crack front, which accounts for both kinking and twisting angles of the during the crack propagation. (iii) a linear approximation for the Stress Intensity Factors (SIF) range, which was applied in the three-dimensional fatigue analysis and enables the discrete solution of the Paris law in accurate form. The SIF are assessed by the displacement correlation or extrapolation techniques. The maximum energy release rate or the Schöllmann's criteria are adopted for driving the propagation process. Four numerical examples are presented in order to validate the proposed computation framework and investigate its accuracy and robustness.
       
  • Isogeometric analysis of large thin shell structures based on weak
           coupling of substructures with unstructured T-splines patches
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Zhenyu Liu, Jin Cheng, Minglong Yang, Pei Yuan, Chan Qiu, Wei Gao, Jianrong Tan In this paper, a new isogeometric analysis (IGA) method is proposed for large thin shell structures based on the weak coupling of substructures with unstructured T-splines patches. Firstly, the Kirchhoff–Love shell element is developed based on unstructured T-splines for discretizing the analysis models of large thin shell structures. Subsequently, the substructuring method is adopted to divide the analysis model of a large thin shell structure into several substructures composed of multiple unstructured T-splines patches. The approach for the weak coupling of substructures is introduced in detail. To improve the IGA efficiency of large thin shell structures, a dimensionality reduction method is put forward to reduce the stiffness matrix of an IGA model by firstly condensing the interior control points of its substructures’ matrices and then integrating the condensed substructures into a whole system. The effectiveness and applicability of the proposed IGA method with substructuring are verified by two examples.
       
  • Multiscale analysis of woven composite structures in MSC.Nastran
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Xin Liu, Federico Gasco, Wenbin Yu, Johnathan Goodsell, Khizar Rouf In the finite element analysis (FEA) of composite structures, shell and beam elements with homogenized material properties are often used to reduce the computational costs and modeling efforts. However, significant loss of accuracy may occur due to constitutive modeling limitations of commercially available software packages for complex mesostructures such as woven composites. In this paper, CQUAD4, CQUAD8 and CBEAM elements in MSC.Nastran have been enabled to analyze complex woven composite structures using mechanics of structure genome (MSG). The plate and beam stiffness matrices are computed using MSG plate and beam models and transformed into MSC.Nastran element and material properties to perform the structural analysis. A three-dimensional (3D) orthogonal woven plate is analyzed using MSC.Nastran CQUAD4 elements based on MSG plate model. In addition, a 3D woven beam with extension-bending couplings is analyzed using MSC.Nastran CBEAM elements with homogenized properties with the help of MSG beam model. The beam and shell elements in MSC.Nastran powered by MSG models provide a new way to analyze complex woven composite structures. A graphical user interface (GUI) has been developed for MSC.Nastran to incorporate the constitutive modeling and to enable the automation of the information passing between constitutive modeling and structural analysis.
       
  • An efficient surrogate-aided importance sampling framework for reliability
           analysis
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Wang-Sheng Liu, Sai Hung Cheung, Wen-Jun Cao Surrogates in lieu of expensive-to-evaluate performance functions can accelerate the reliability analysis greatly. This paper proposes a new two-stage framework for surrogate-aided reliability analysis named Surrogates for Importance Sampling (S4IS). In the first stage, a coarse surrogate is built to gain the information about failure regions. The second stage zooms into the important regions and improves the accuracy of the failure probability estimator by adaptively selecting support points. The learning functions are proposed to guide the selection of support points such that the exploration and exploitation can be dynamically balanced. As a generic framework, S4IS has the potential to incorporate different types of surrogates (Gaussian Processes, Support Vector Machines, Neural Network, etc.). The effectiveness and efficiency of S4IS are validated by five illustrative examples, which involve system reliability, highly nonlinear limit-state functions, small failure probability and moderately high dimensionality. The implementation of S4IS is made available to download at https://sites.google.com/site/josephsaihungcheung/.
       
  • A fully coupled implementation of hydrogen embrittlement in FE analysis
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Giorgia Gobbi, Chiara Colombo, Stefano Miccoli, Laura Vergani Proper understanding of hydrogen embrittlement in steel is of paramount importance in several engineering applications, e.g. oil & gas and hydrogen storage & transport.This phenomenon can be modelled by means of a mass diffusion analysis driven by mechanical fields, i.e. hydrostatic stress gradient and plastic strain. Since the mechanical response depends on the hydrogen content itself, continuum mechanics and mass diffusion equations are fully coupled.Accordingly in this paper a fully coupled–cohesive zone implementation is presented for the Abaqus Finite Element code, adopting the coupled thermal–stress analysis and the analogy between mass diffusion and heat transfer. The implementation requires extensive use of FORTRAN user subroutines and common blocks to share data, plus some auxiliary Python scripts.With the aim to provide a practical example to the use of the code, a FE model reproducing a fracture toughness test of C(T) specimen charged with atomic hydrogen is described. Moreover, a sensitivity analysis of the model shows the capability of the developed numerical tool in predicting hydrogen embrittlement.The code developed in this paper is open source under a permissive free software license.
       
  • Functor-oriented topology optimization of elasto-plastic structures
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): P. Tauzowski, B. Blachowski, J. Lógó The paper deals with a novel approach to development of optimality criteria based finite element code for topology optimization of elasto-plastic structures. The novelty of this work is related to the concept of function object called functor and its application to efficient FE code development. First, the general problem of topology optimization under stress constraints is briefly formulated. Then, the programming aspects of topology optimization using traditional object-oriented and functor based programming are discussed. The advantages of the functor based approach are related to simplicity of designing the FE code architecture and reusability of this code. In particular the metric known as 'Lack of cohesion of methods' is useful in comparing these two different paradigms. Finally, the paper is also illustrated with numerical examples of topology optimization using the proposed methodology.
       
  • A scalable framework for large-scale 3D multimaterial topology
           optimization with octree-based mesh adaptation
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Ting Wei Chin, Mark K. Leader, Graeme J. Kennedy Advancements in multimaterial additive manufacturing have the potential to enable the creation of topology optimized structures with both shape and material tailoring. However, multimaterial topology optimization methods that use Discrete Material Optimization (DMO) face three technical challenges for large-scale high-resolution problems: 1) the large-scale design space, since selection variables must be added for each additional candidate material; 2) the treatment of numerous sparse partition of unity constraints required in some DMO parametrizations; and 3) the multimaterial design space that has more local minima than an equivalent single material design space. This paper addresses these issues by presenting a parallel, scalable analysis and design optimization framework for multimaterial topology optimization that optionally uses local mesh refinement using semi-structured octree meshes. The advantages of this framework are demonstrated by showcasing its solution and design scalability and by efficiently solving large 3D multimaterial compliance-minimization problems with both isotropic and orthotropic material options on meshes with up to 329 million elements. For the largest case, the adaptive strategy is shown to achieve a compliance objective within 1.86% with roughly 1/4 the mesh size.
       
  • A Python surrogate modeling framework with derivatives
    • Abstract: Publication date: Available online 1 July 2019Source: Advances in Engineering SoftwareAuthor(s): Mohamed Amine Bouhlel, John T. Hwang, Nathalie Bartoli, Rémi Lafage, Joseph Morlier, Joaquim R.R.A. Martins The surrogate modeling toolbox (SMT) is an open-source Python package that contains a collection of surrogate modeling methods, sampling techniques, and benchmarking functions. This package provides a library of surrogate models that is simple to use and facilitates the implementation of additional methods. SMT is different from existing surrogate modeling libraries because of its emphasis on derivatives, including training derivatives used for gradient-enhanced modeling, prediction derivatives, and derivatives with respect to training data. It also includes unique surrogate models: kriging by partial least-squares reduction, which scales well with the number of inputs; and energy-minimizing spline interpolation, which scales well with the number of training points. The efficiency and effectiveness of SMT are demonstrated through a series of examples. SMT is documented using custom tools for embedding automatically tested code and dynamically generated plots to produce high-quality user guides with minimal effort from contributors. SMT is maintained in a public version control repository.1
       
  • Meta-heuristic design optimization of steel moment resisting frames
           subjected to natural frequency constraints
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Pooya Zakian Natural frequencies of a structure play a key role for finding underlying structural properties. Therefore, structural design considering natural frequencies is a very important issue for engineers. While there are many studies on optimization of truss structures under multiple frequency constraints, just a few studies have been published on steel frames for which only gradient based methods were applied. In this paper, meta-heuristic algorithms are applied for the first time ever to optimal design of steel frame structures with frequency constraints. Several benchmark design examples are solved with five algorithms including particle swarm optimization (PSO), charged system search (CSS), teaching-learning based optimization (TLBO), grey wolf optimizer (GWO) and a recently developed improved grey wolf optimizer (IGWO). Optimization results of these algorithms are compared in terms of statistical indices, convergence and optimum solutions. Various types of planar and space steel frames ranging from small to large scale cases are considered for illustrating merits and applicability of meta-heuristic algorithms to these sizing optimization problems wherein the large scale cases are studied in both continuous and discrete forms.
       
  • A web-based system for the selection of characteristic ground motions
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Robert Klinc, Žiga Šebenik, Matjaž Dolšek, Marko Brozovič, Matevž Dolenc In the paper a web-based system CGMapp for the selection of characteristic ground motions is presented. It performs the selection of ground motions according to the conditional spectrum approach by considering the old PEER and RESORCE databases, and refines this selection by making use of nonlinear dynamic analyses of a single-degree-of-freedom (SDOF) model, so that seven characteristic ground motions are obtained. They can be understood as risk-targeted, hazard-consistent, and structure-specific ground motions, which can be used within the scope of the 3R method (Record selection, Response analysis and Risk-based decision making) in order to make decisions about the collapse safety of symmetric buildings, by performing only a few nonlinear response history analyses. It was shown by the proposed web-based system that the automation of the selection of the characteristic ground motions is possible through the internet. Thus, the use of the 3R method becomes trivial, so that the researcher will have the possibility to test the method, which will help to better understand the range of applicability of the proposed 3R method. In the paper, the background of CGMapp is first explained. This is followed by a demonstration of the use of the presented web-based system for the selection of characteristic ground motions in the assessment of the collapse safety of an 8-storey reinforced concrete dual structure. Although only seven nonlinear dynamic analyses were performed using characteristic ground motions, it is shown that the decision about collapse safety was the same as that obtained on the basis of incremental dynamic analysis, which requires hundreds of simulations. Finally, it is also shown that the web-based system can be used as a research tool, in order to obtain a better understanding of the impact of the uncertainty of the selection of ground motions on decision-making in earthquake engineering.
       
  • Optimum design of tied-arch bridges under code requirements using enhanced
           artificial bee colony algorithm
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): M.A. Latif, M.P. Saka In this study, optimum design algorithm is presented for tied-arch bridges under AASHTO-LRFD Bridge Design Specifications provisions. It is decided that in tied-arch bridges ties, arch ribs, and bottom and top bracings are made of built-up box sections, whereas built-up I sections are utilized for floor beams and stringers. Bars are adopted for hangers. In the formulation of the optimization problem, design variables are selected as the cross sectional dimensions of steel plates not that of I and box sections. Design pools are prepared for steel plate sections in addition to the hanger bars so that the optimization algorithm can select appropriate steel plates, construct I and box built-up sections for members of 3-D tied-arch such that the weight of the bridge is minimized. In addition to design code requirements, geometrical constraints among its elements that are required for manufacturability of the bridge are also considered. The design process of tied-arch bridges differs from that of steel framed structures. It necessitates consideration of moving vehicle loads. Design optimization algorithms require the response of bridges under several design load arrangements and in the construction of influence lines. This is achieved by using open application programming interface (OAPI) facility of SAP2000. The solution of discrete nonlinear programming problem is obtained by using the proposed Enhanced Artificial Bee Colony algorithm (eABC). The proposed algorithm is compared with Standard Artificial Bee Colony (ABC) and Exponential Big Bang-Big Crunch (eBB-BC) algorithms to evaluate its performance.
       
  • Dynamic modeling for a 6-DOF robot manipulator based on a centrosymmetric
           static friction model and whale genetic optimization algorithm
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Libin Zhang, Jiacai Wang, Jiaoliao Chen, Kang Chen, Bangyang Lin, Fang Xu The robot dynamics model can improve the efficiency of robot manipulators to perform complex tasks. In this study, a novel method is proposed for the dynamics model of a 6 degree of freedom (DOF) robot manipulator to improve the motion accuracy. A centrosymmetric static friction model (CSFM) integrated with a piecewise function is utilized to describe the hysteresis effect of joint friction. A hybrid whale optimization algorithm and genetic algorithm (WOA-GA) is applied to identify dynamic parameters of the 6 robot joints. An experiment conducted on a 6-DOF robot manipulator demonstrates that the mean deviation of the estimated torque of robot joints for slow motion is reduced by 19% using CSFM in contrast to the Stribeck model. The mean match degree of the estimated torque can reach to 93.86% based on WOA-GA, improved by 0.4–2% compared with other optimization algorithms (WOA, GA and PSO-GA). These results prove that the method based on CSFM and WOA-GA is feasible for the precise dynamics model of a robot manipulator.
       
  • Accurate numerical computation of loaded tooth surface contact pressure
           and stress distributions for spiral bevel gears by considering
           time-varying meshing characteristics
    • Abstract: Publication date: September 2019Source: Advances in Engineering Software, Volume 135Author(s): Shandong Peng, Han Ding, Jinyuan Tang In order to meet the high strength demand from gear transmission in industrial applications, identification of loaded tooth contact performance using loaded tooth contact analysis (LTCA) has become an increasing important design stage for spiral bevel gears. To distinguish with the conventional simulated loaded tooth contact analysis (SLTCA) applying commercial finite element software, a numerical loaded tooth contact analysis (NLTCA) method is proposed to determine the loaded contact pressure and stress. In particular, focusing on the time-varying meshing characteristics of loaded tooth contact, the loaded contact pressure and stress distributions on both instantaneous and whole contact ellipses of tooth surface are determined by the proposed NLTCA, respectively. First, the universal mathematical tooth surface mode is established by applying machine settings satisfying the universal motion concept (UMC). Moreover, the curvature analysis of the contact points is performed to determine the loaded tooth surface contact pattern as the input for the proposed numerical analytical calculation method. In the identifications of loaded contact pressure and stress, their distributions having the different directions in both the instantaneous contact ellipse and the whole loaded contact pattern are taken into account. Finally, the numerical instances are given to verify the proposed methodology.
       
  • Passive actuator-fault-tolerant path following control of autonomous
           ground electric vehicle with in-wheel motors
    • Abstract: Publication date: August 2019Source: Advances in Engineering Software, Volume 134Author(s): Te Chen, Long Chen, Xing Xu, Yingfeng Cai, Haobin Jiang, Xiaoqiang Sun This paper investigates the fault-tolerant path following control problem of autonomous ground electric vehicles with in-wheel motors through hierarchical control strategy. The sliding mode observer with boundary layer is designed to estimate the vehicle state, and the time-delay estimation method is used to compute the actuator fault. Considering the actuator fault, the fault-tolerant path following control strategy is proposed, in which the upper layer controller is developed to achieve path following control and guarantee vehicle stability simultaneously by sliding mode control method, and the lower layer controller is presented to achieve the control efforts of upper layer controller by adaptive orientated tire force allocation method. The simulations are implemented in the CarSim-Simulink co-simulation platform, and the simulation results have verified the effectiveness of proposed fault-tolerant path following control method.
       
  • An automated method for size and velocity distribution measurement in a
           particle-laden flow
    • Abstract: Publication date: August 2019Source: Advances in Engineering Software, Volume 134Author(s): Erfan Niazi, James G. McDonald, Marianne Fenech Over the past several decades, image processing and automated tracking of particles has emerged as a useful tool for the study of biological particles behaviour. This article describes an open-source computational implementation of a method for determining particle velocity and size distributions of large groups of particles by analyzing video sequences acquired using a video-microscopic systems. Although, in this study, red blood cells are used as a subject, this implementation can be used for any particle-laden flow where particles present a range of sizes and details of the velocity distribution of each size is of interest.From each single image, the current program detects particles and classifies them according to their size. It uses sequential images to track particles and compute the instantaneous velocity distribution of the particles. The tool can also assign an ellipse to each particle and report the major axis, the minor axis and the orientation of particles in each image. Use of the program improves repeatability of image processing and is suitable for studies related to particle dynamics, colloids, and microfluidic flow measurement. The size distribution and the velocity distribution of particles is often useful in the study of effect of parameters like shear stress on particle collision rate, agglomeration and breakage rate.
       
  • An uncertain optimization method based on interval differential evolution
           and adaptive subinterval decomposition analysis
    • Abstract: Publication date: August 2019Source: Advances in Engineering Software, Volume 134Author(s): Chunming Fu, Lixiong Cao An interval differential evolution (IDE) with adaptive subinterval decomposition analysis is suggested to directly solve the nonlinear uncertain optimization problems with interval parameters. The adaptive subinterval decomposition analysis technique is proposed to calculate the upper and lower bounds of objective function and constraints caused by interval uncertainties. An adaptive convergence mechanism is utilized to ensure the accuracy of achieved bounds. Moreover, within the framework of IDE, the interval possibility model is employed to deal with the interval constraints of uncertain optimization problems and the interval preferential rule is used to select the promising solutions to retain into the next evolutionary population. Both numerical and engineering examples are eventually given to demonstrate the validity of the proposed method.
       
  • A new nodal outflow function for head-dependent modelling of water
           distribution networks
    • Abstract: Publication date: Available online 19 January 2007Source: Advances in Engineering SoftwareAuthor(s): T.T. Tanyimboh, A.B. TemplemanThis article has been removed consistent with Elsevier Policy on Article Withdrawal. The Publisher apologises for any inconvenience this may cause.
       
 
 
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