吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 1381-1387.doi: 10.13229/j.cnki.jdxbgxb201505001

• •    下一篇

基于ISIGHT的电动汽车扭杆梁悬架振动传递特性优化

左曙光, 蒋维旭, 吴旭东, 李程祎   

  1. 同济大学 新能源汽车工程中心,上海 201804
  • 收稿日期:2014-03-18 出版日期:2015-09-01 发布日期:2015-09-01
  • 通讯作者: 吴旭东(1983-),男,助理教授,博士.研究方向:汽车振动与噪声控制. E-mail:118wuxudong@tongji.edu.cn
  • 作者简介:左曙光(1968-）,男,教授,博士生导师.研究方向:汽车振动与噪声控制.E-mail:sgzuo@tongji.edu.cn
  • 基金资助:
    国家自然科学基金项目(51375343); “973”国家重点基础研究发展计划项目(2011CB711200)

Vibration transfer characteristics optimization of an electric vehicle's twist beam suspension based on ISIGHT

ZUO Shu-guang, JIANG Wei-xu, WU Xu-dong, LI Cheng-yi   

  1. Clean Energy Automobile Engineering Center, Tongji University, Shanghai 201804, China
  • Received:2014-03-18 Online:2015-09-01 Published:2015-09-01

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摘要： 针对车用驱动电机转矩波动引起悬架系统振动进而造成车内噪声的问题,提出通过改善悬架纵向和垂向振动传递特性来实现减振的优化方法。通过扭杆梁柔性化、高频衬套模型的ADAMS实现等措施保证悬架弹性元件的精确描述来建立适用于高频仿真的悬架模型,并基于此模型进行振动传递特性分析,最后基于ISIGHT集成多学科软件实现多目标全局优化。优化结果表明:在略微减小垂向振动传递函数加权面积的基础上使纵向振动传递函数加权面积减小了17.23%,且在目标频段内振动传递优化效果显著。

关键词: 车辆工程, 电动汽车, 高频悬架模型, 多目标优化

Abstract: An optimization method was proposed to solve the vibration issue of suspension system in both vertical and longitude directions, which is commonly caused by torque ripple of wheel-drive motor in electric vehicle. By flexibly modeling of the twist beam and realizing the high-frequency bushing model in the ADAMS, the elastic component was accurately described, then, the high-frequency applied suspension model was built. Based on ISIGHT software, the multi-objective optimization was conducted by integrating multi-disciplinary software. The optimization results showed that the weighted area of longitudinal vibration transfer function was optimized by 17.23% with slightly reducing the weighted area of vertical vibration transfer function. Within the target spectrum, the optimizing effect of vibration transfer is significant.

Key words: vehicle engineering, electric vehicle, high-frequency suspension model, multi-objective optimization

中图分类号: 

  • U463
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