TY - JOUR
T1 - Optimization design of rail clip in Vossloh fastening system by uniform design and grey relation analysis
AU - Cheng, Yung Chang
AU - Kuo, Chen Ming
AU - Lee, Cheng Kang
AU - Xie, Min Sheng
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was funded by the Ministry of Science and Technology (MOST) under grant no’s. 107-2221-E-992-038-MY2 and 109-2221-E-992-022.
Publisher Copyright:
© IMechE 2021.
PY - 2021/11
Y1 - 2021/11
N2 - This study presents the innovative optimization design procedure to increase the strength and fatigue safety of a fastening system under the static and fatigue loading. Applying the uniform design of experiment, a group of simulation experiment is generated. Utilizing ANSYS/Workbench software, the finite element models are constructed and used to evaluate the von Mises stress of rail clip for EN 13146-1 and EN 13146-2 testing simulations. Furthermore, the fatigue safety factor of rail clip for EN 13146-4 testing simulation is also presented. By the Kriging interpolation method, the surrogate models are rebuilt by the input and output data from the uniform design. Applying grey relational analysis, entropy weighting method, genetic algorithm and Hooke–Jeeves algorithm, the improvement design version is presented by solving the multi-objective optimization problem. Compared with the original design, the maximum von Mises stress of rail clip has been decreased to 25.189 MPa, the fatigue safety factor is upgraded to 3.829. As a result, the strength and fatigue safety of the rail clip in the fastening system is increased.
AB - This study presents the innovative optimization design procedure to increase the strength and fatigue safety of a fastening system under the static and fatigue loading. Applying the uniform design of experiment, a group of simulation experiment is generated. Utilizing ANSYS/Workbench software, the finite element models are constructed and used to evaluate the von Mises stress of rail clip for EN 13146-1 and EN 13146-2 testing simulations. Furthermore, the fatigue safety factor of rail clip for EN 13146-4 testing simulation is also presented. By the Kriging interpolation method, the surrogate models are rebuilt by the input and output data from the uniform design. Applying grey relational analysis, entropy weighting method, genetic algorithm and Hooke–Jeeves algorithm, the improvement design version is presented by solving the multi-objective optimization problem. Compared with the original design, the maximum von Mises stress of rail clip has been decreased to 25.189 MPa, the fatigue safety factor is upgraded to 3.829. As a result, the strength and fatigue safety of the rail clip in the fastening system is increased.
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U2 - 10.1177/0954406221995529
DO - 10.1177/0954406221995529
M3 - Article
AN - SCOPUS:85101234839
SN - 0954-4062
VL - 235
SP - 5639
EP - 5652
JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
IS - 21
ER -