中低速磁浮列车悬浮架纵梁结构优化

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (14) : 180-188.

论文

中低速磁浮列车悬浮架纵梁结构优化

张明康1,2，肖乾1，雷成2，石小牒1，王爱彬3，符远航1

作者信息 +

Structural optimization of the levitation bogie longitudinal beam of a med-low speed maglev train

ZHANG Mingkang1,2,XIAO Qian1,LEI Cheng2,SHI Xiaodie1,WANG Aibin3,FU Yuanhang1

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摘要

为得到具有理想承载性能同时又满足轻量化设计要求的中低速磁浮列车悬浮架结构，利用有限元软件建立悬浮架有限元模型，对悬浮架关键工况进行计算分析并结合强度试验验证有限元模型的可靠性。选取悬浮架纵梁为研究对象，分别基于多项式响应面法、Kriging法构造目标参数关于设计变量的代理模型，并对三种代理模型精度进行比较，得到目标参数随设计变量的最优代理模型，利用多目标优化算法进行计算寻优，得到代理模型的最优解集并通过仿真计算对最优结果进行验证。研究结果表明：Kriging法响应面模型的拟合精度高于多项式的二次和线性响应面模型；优化后悬浮架纵梁结构相比于原设计方案在满足强度可靠性要求的前提下，纵梁结构质量降低了16.9%。

Abstract

To obtain the levitation bogie structure of the med-low speed maglev vehicle with ideal bearing capacity and meeting the lightweight design requirements, the finite element model of the levitation bogie is established by using the finite element software, and the key working conditions of the levitation bogie is calculated and analyzed, and the reliability of the finite element model is verified by combining the strength test. The longitudinal beam of the levitation bogie is selected as the research object, and the surrogate models of the target parameters with respect to the design variables are constructed based on the polynomial response surface method and Kriging method respectively, and the three surrogate models are compared to obtain the optimal surrogate model. The optimal solution set of the surrogate model are obtained by using multi-objective optimization algorithms, and the optimal results are verified by simulation calculation. Results indicated that the fitting accuracy of Kriging response surface model is higher than that of polynomial linear and quadratic response surface model. Compared to the original design scheme, the optimized levitation bogie frame structure reduces the quality of the longitudinal beam structure by 16.9% while meeting the strength and reliability requirements.

导出引用

张明康1,2，肖乾1，雷成2，石小牒1，王爱彬3，符远航1. 中低速磁浮列车悬浮架纵梁结构优化[J]. 振动与冲击, 2024, 43(14): 180-188

ZHANG Mingkang1,2,XIAO Qian1,LEI Cheng2,SHI Xiaodie1,WANG Aibin3,FU Yuanhang1. Structural optimization of the levitation bogie longitudinal beam of a med-low speed maglev train[J]. Journal of Vibration and Shock, 2024, 43(14): 180-188

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