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Subjects -> MANUFACTURING AND TECHNOLOGY (Total: 363 journals) - CERAMICS, GLASS AND POTTERY (31 journals) - MACHINERY (34 journals) - MANUFACTURING AND TECHNOLOGY (223 journals) - METROLOGY AND STANDARDIZATION (6 journals) - PACKAGING (19 journals) - PAINTS AND PROTECTIVE COATINGS (4 journals) - PLASTICS (42 journals) - RUBBER (4 journals)
METROLOGY AND STANDARDIZATION (6 journals)

Showing 1 - 6 of 6 Journals sorted alphabetically
	Aeolian Research (Followers: 7)
	International Journal of Instrumentation Technology (Followers: 9)
	Journal of Applied Meteorology and Climatology (Followers: 42)
	Journal of Measurements in Engineering (Followers: 5)
	Nanomanufacturing and Metrology (Followers: 1)
	NCSLI Measure : The Journal of Measurement Science

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Journal of Measurements in Engineering
Number of Followers: 5

This is an Open Access Journal

Open Access journal
ISSN (Print) 2335-2124 - ISSN (Online) 2424-4635
Published by JVE International

[3 journals]

An experimental measurement and numerical calculation method on friction
temperature rise of sliding contact pairs - taking rail/wheel contact as
an example
- Authors: Wei; Yunpeng, Wu, Yaping, Chen, Zhidong
  Abstract: Journal of Measurements in Engineering, (in Press).
  Yunpeng Wei, Yaping Wu, Zhidong Chen
  The analysis of rail/wheel sliding friction heat is a very important research field. The numerical simulation is often adopted to calculate the friction heat, and experimental method is relatively few. In this paper, an experimental machine is designed to simulate the rail/wheel sliding contact. At the same time, a rail/wheel contact wear model and a friction heat transfer model are established. The characteristics of temperature on rail/wheel sliding contact are analyzed by experimental test and numerical calculation. The research results show that the temperature rise of wheel and rail is quick in the initial sliding contact stage, then gradually slows down. The temperature of wheel is higher than that of rail at the same depth from the contact surface. In the initial sliding stage, the wheel temperature rises faster than the rail temperature, which is related to the size of contact surface and the concentration degree of friction heat. Moreover, the results of this paper show that the temperature values of the rail/wheel obtained through experimental test and numerical calculation are in good agreement. The experimental and numerical calculation methods used in this article can be adopted to analyze the contact problems of other sliding friction pairs.
  Citation: Journal of Measurements in Engineering
  PubDate: 2023-03-13T00:00:00Z
  DOI: 10.21595/jme.2023.22974
  Issue No: Vol. 11, No. 1 (2023)
An adaptive infrared image denoising method based on two-dimensional
empirical mode decomposition for distribution network inspection UAV
- Authors: Zhou; Qigang, Yang, Lei, Liu, Fengqi, Li, Songyu
  Abstract: Journal of Measurements in Engineering, (in Press).
  Qigang Zhou, Lei Yang, Fengqi Liu, Songyu Li
  An adaptive denoising method based on 2D empirical mode decomposition (EMD) is proposed to improve the infrared image quality of inspection UNMANNED aerial vehicles (UAVs) and provide guarantee for improving the inspection level of distribution network. Through rapid adaptive two-dimensional empirical mode decomposition algorithm decomposition of a UAV collected for distribution network inspection original noise of infrared image, get more than the IMF component and the residual amount, a forecast noise dominated the IMF component parameters such as threshold value and the variance of noise, using the estimated parameters in combination with the optimal linear interpolation algorithm of noise threshold function of leading the IMF component implementation of threshold denoising. After the denoised IMF component is obtained, the denoised infrared image is obtained after reconstruction with the signal-dominated IMF component, and the adaptive denoising of the infrared image of the distribution network inspection UAV is realized. The experimental results show that the method in this paper can maintain the details of the image, improve the definition, significantly improve the visual effect, the overall denoising performance is stable and feasible, and ensure the quality inspection UAV to collect infrared images.
  Citation: Journal of Measurements in Engineering
  PubDate: 2023-02-14T00:00:00Z
  DOI: 10.21595/jme.2023.23010
  Issue No: Vol. 11, No. 1 (2023)
In-situ experiment research on environmental vibration transmission
characteristics of air-rail combined airport
- Authors: Wu; Zaixin, Dai, Feng, Yang, Jizhong
  Abstract: Journal of Measurements in Engineering, (in Press).
  Zaixin Wu, Feng Dai, Jizhong Yang
  The rail transit and civil aviation are the important components of the comprehensive transportation system. The development of the air-rail combined transport is an important effective way for China to become a country with strong transportation network. The transportation intersection form of railway under-passing airport transportation hub gradually becomes popular, thus the environmental vibration due to the under-passing railway cannot be ignored. In this paper, a large-scale integrated transportation hub construction project was taken as an example to analyze the transmission rule of environmental vibration due to the high-speed railway at the speed of 350 km/h under-passing airport in terms of the time domain and frequency domain by means of the on-site in-situ wheel-drop test. The research results show that the vertical vibration response of the ground surface along the normal direction of the railway is greater than those of the other two directions within 40 m from the centerline of the track. A vibration amplification zone appears within 5-40 m. The longitudinal vibration response of the ground surface is greater than those of the other two directions within 40-70 m. The local vibration amplification zones appear within 5-20 m and 30-60 m. The lateral vibration level of the ground surface along the normal direction of the railway increase gradually, but attenuates at the distance of 40 m and 10 m with the maximum attenuation rate of 0.67. The vertical vibration level amplifies at the distance of 60 m. The longitudinal vibration level attenuates at the distance of 20 m with the maximum attenuation rate of 0.3, but amplifies at the distance of 40 m with the maximum amplification rate of 1.8.
  Citation: Journal of Measurements in Engineering
  PubDate: 2023-02-06T00:00:00Z
  DOI: 10.21595/jme.2023.23062
  Issue No: Vol. 11, No. 1 (2023)
Dynamic and vibration characteristics of flexible robot manipulator under
complex electromechanical coupling
- Authors: Zhang; Wenhui, Wen, Zhi, Ye, Yangfan, Shen, Jinmiao, Ye, Xiaoping
  Abstract: Journal of Measurements in Engineering, (in Press).
  Wenhui Zhang, Zhi Wen, Yangfan Ye, Jinmiao Shen, Xiaoping Ye
  Aiming at the complex electromechanical coupling effect at the joints of RP (rotating parallel) flexible robot, the electromechanical coupling dynamics and vibration response characteristics driven by AC servo motor, as well as the dynamic starting characteristics of the motor are studied. The physical model including electromagnetic and mechanical system coupling is established, and the dynamic model of the whole system is derived based on the overall electromechanical coupling effect and Lagrange Maxwell equation. With the help of Matlab/Simulink, a virtual simulation platform is built to analyze the output speed characteristics of the motor drive end and the motion of the moving base. Finally, through the joint simulation of Matlab/Simulink dynamic simulation model and Adams/controls virtual prototype model, the vibration characteristics of flexible manipulator under electromechanical coupling are obtained. The simulation results show that the electromechanical coupling effect of the motor drive end has a significant impact on the dynamic characteristics of the flexible manipulator. The conclusions obtained are of great value for improving the chiral energy of flexible machinery.
  Citation: Journal of Measurements in Engineering
  PubDate: 2022-11-26T00:00:00Z
  DOI: 10.21595/jme.2022.22836
  Issue No: Vol. 10, No. 4 (2022)
Research on online monitoring and early warning system of transmission
line galloping based on multi-source data
- Authors: Dong; Kai, Shen, Qingbin, Wang, Chengyi, Dong, Yanwu, Lu, Ziqiang
  Abstract: Journal of Measurements in Engineering, (in Press).
  Kai Dong, Qingbin Shen, Chengyi Wang, Yanwu Dong, Ziqiang Lu
  When the conductor is covered with ice on a non-circular section, and there is low-frequency, large-amplitude motion under wind excitation, it is usually called the transmission line galloping phenomenon. Due to the large amplitude, the galloping of the transmission line will lead to line fatigue, increase in tension, damage to hardware, or toppling of towers. In addition, it will also lead to flashover, tripping, and other transmission accidents caused by the short phase distance, which is not conducive to the safe operation of power grids. In order to improve the safety of power grid operation, this paper designed an online monitoring and early warning system for transmission line galloping on the basis of multi-source data and verified the system through implementation. It was found that the safety factor was 1.568, which determines its early warning level and affirms the feasibility of this study. This research has a positive role in improving the safe operation of the power grid.
  Citation: Journal of Measurements in Engineering
  PubDate: 2022-10-30T00:00:00Z
  DOI: 10.21595/jme.2022.22818
  Issue No: Vol. 10, No. 4 (2022)
Influence of barrier effect on barrier sheet pile wharf
- Authors: Zhang; Hao, Zhu, Huaxin, Zhang, Defeng, Wang, Jie, Zhang, Chenxing, Novák, Drahomír
  Abstract: Journal of Measurements in Engineering, (in Press).
  Hao Zhang, Huaxin Zhu, Defeng Zhang, Jie Wang, Chenxing Zhang, Drahomír Novák
  This study aims to investigate the barrier effect of front wall-soil-barrier interactions in barrier sheet pile wharf structures. Berth 32 of the Jingtang Port was taken as the prototype structure, and the prototype observation experiment, centrifugal model test, and numerical calculation analysis were performed to study the influence of the length of the barrier pile, the spacing D between wall piles, and the net spacing L of the barrier pile on the barrier effect. The results show that, to maximize the barrier effect, the ratio N of the pile length of the full barrier pile to the depth of the front wall should be between 1.0 and 1.1. To maximize the barrier effect, the top elevation of the semi-barrier pile should not be excessively low. When the bottom elevation is fixed, the ratio of the length of the semi-barrier pile to the depth of the front wall is approximately N= 0.7. The change in the wall pile spacing D has a considerable impact on the barrier effect. Moreover, D has a logarithmic relationship to the horizontal displacement of the front wall. When D exceeds 3 m, the change in the barrier effect can be ignored. The part of the earth pressure shared by the sea and land sides of the barrier pile to the soil between the barrier pile and the barrier pile has a logarithmic relationship to the net spacing L of the barrier pile. The smaller the L, the better the barrier effect. When L exceeds 2 m, the earth pressure shared by the two parts tends to be average, and the barrier effect can be ignored.
  Citation: Journal of Measurements in Engineering
  PubDate: 2022-10-26T00:00:00Z
  DOI: 10.21595/jme.2022.22921
  Issue No: Vol. 10, No. 4 (2022)
Parameter estimation of underwater propeller based on inverse Radon
transform
- Authors: Bo; Tang, Linsen, Zhang, Siwei, Tan
  Abstract: Journal of Measurements in Engineering, (in Press).
  Tang Bo, Zhang Linsen, Tan Siwei
  Aiming at improving the method of underwater target recognition, this paper proposes a method to estimate the micro-Doppler spectrum parameters of propeller by using inverse Radon transform, so as to obtain the characteristic parameters of propeller. This paper firstly analyzes the basic concepts of micro-Doppler and inverse Radon transform, then defines the algorithm steps of inverse Radon transform for propeller parameter estimation and carries out simulation. The simulation results show that this method can effectively estimate the propeller rotational speed, blade number, blade length and initial spatial position.
  Citation: Journal of Measurements in Engineering
  PubDate: 2022-10-17T00:00:00Z
  DOI: 10.21595/jme.2022.22781
  Issue No: Vol. 10, No. 4 (2022)
To experimental study of performance evaluation of masonry brick bond in
shear and compression in comparison
- Authors: Abbas; Nadeem, Yousaf, Muhammad, Akbar, Muhammad, Huali, Pan, Usman Yousaf, M., Guoqiang, Ou
  Abstract: Journal of Measurements in Engineering, (in Press).
  Nadeem Abbas, Muhammad Yousaf, Muhammad Akbar, Pan Huali, M. Usman Yousaf, Ou Guoqiang
  The construction of a structure is prohibitively expensive due to high material and labour expenses. Still, the production of cement, which is the most widely used binding substance in construction, results in the emission of a large amount of CO2 into the atmosphere. It has only recently been discovered that Pakistan is short of approximately 9 million residential constructions. Thus, there is a great need for cost-effective and energy-efficient masonry construction because of economic and environmental concerns. Rat-trap masonry bond creates a cavity in the wall, which serves as both thermal insulation and a cost-saving measure. Because of the inherent property of rat-trap masonry bond, a cavity is formed in the wall, which not only serves as thermal insulation for the interior but is also cost-effective It has been observed that approximately 26.11 % of the total construction cost, comprising of labor and material, can be curtailed by adopting the rat-trap bonding technique. Rat-trap bond construction is recognized as a greener and more sustainable alternative to conventional brick bonds. A comparative study of the structural behavior of the rat-trap and conventionally used English bond has been conducted. 72 prisms of rat-trap bond and English bond from three sources of bricks were tested under compression load at the ages of 28 and 56 days. The same number of prisms were tested under diagonal tension load at both ages. 18 triplet prisms from all sources of bricks were tested for shear bond strength without lateral load, whereas 5 triplet prisms from every brick source were tested with a set of lateral pre-compression loading of 29 psi, 87 psi, and 145 psi. The results show that the rat-trap bond has much higher compressive and shear strengths than the English bond.
  Citation: Journal of Measurements in Engineering
  PubDate: 2022-10-11T00:00:00Z
  DOI: 10.21595/jme.2022.22559
  Issue No: Vol. 10, No. 4 (2022)