铁道车辆动力学模型设计及优化分析
刘永强，戴焕云
（西南交通大学 牵引动力国家重点实验室，四川 成都 610031）
摘要：采用多体动力学软件SIMPACK建立铁道车辆动力学模型，并对其进行优化分析，调用SIMPACK计算不同车辆悬挂参数下的车辆动力学性能，包括安全性、稳定性、舒适性等指标。采用脱轨系数、倾覆系数、轮轨横向力评价指标对车辆运行安全性进行评定，优化分析采用最优试验设计方法构建了近似模型，经过优化计算，车辆的动力学综合性能提高了30%以上，每一个动力学指标都有不同程度的提高。
关键词：铁道车辆；动力学；模型设计；可靠性
中图分类号：U270.2 文献标志码：A doi：10.3969/j.issn.1006-0316.2018.12.001
文章编号：1006－0316 (2018) 12－0001－03
Design and Optimization Analysis of Dynamics Model of Railway Vehicle
LIU Yongqiang，DAI Huanyun
( State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China )
Abstract：In this paper, the multi-body dynamics software SIMPACK was taken for building dynamics model of railway vehicle. The optimization analysis was conducted with multidisciplinary optimization software. Vehicle suspension parameters were calculated with SIMPACK under different vehicle dynamics performance, including safety, stability, comfort and other indicators. Derailment coefficient, overturning coefficient and wheel-rail was used to evaluate the operation safety of the vehicle. Normalized multi-objective optimization method was used to evaluate dynamics integrated performance of the vehicle. After optimization, the vehicle dynamics performance has increased by more than 30%. Every dynamic indicator has been improved to various degrees.
Key words：railway vehicle；dynamics；model design；reliability
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收稿日期：2018－05－30
基金项目：国家重点研发计划资助（2016YFB1200501）；牵引动力国家重点实验室研究项目（2015TPL_Z03）
作者简介：刘永强（1994－），男，河南漯河人，硕士，主要研究方向为车辆系统动力学和车辆－轨道耦合动力学；戴焕云（1966－），男，河北赤城人，博士、博导，研究员，主要研究方向为车辆系统动力学（轨道交通方向）。
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