Pengpeng Zhi1,2,3, Zhonglai Wang1,2,*, Bingzhi Chen3, Ziqiang Sheng4
CMES-Computer Modeling in Engineering & Sciences, Vol.131, No.2, pp. 1001-1022, 2022, DOI:10.32604/cmes.2022.019835
Abstract Although various types of anti-roll torsion bars have been developed to inhibit excessive roll angle of the electric
multiple unit (EMU) car body, it is critical to ensure the reliability of structural design due to the complexity of the
problems involving time and uncertainties. To address this issue, a multi-objective fuzzy design optimization model
is constructed considering time-variant stiffness and strength reliability constraints for the anti-roll torsion bar. A
hybrid optimization strategy combining the design of experiment (DoE) sampling and non-linear programming by
quadratic lagrangian (NLPQL) is presented to deal with the design optimization model. To characterize the effect
of… More >
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