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面向整车平顺性的商用车平衡悬架结构分析与优化设计研究

唐竞 许恩永 何水龙

唐竞,许恩永,何水龙. 面向整车平顺性的商用车平衡悬架结构分析与优化设计研究[J]. 机械科学与技术,2021,40(11):1717-1722 doi: 10.13433/j.cnki.1003-8728.20200371
引用本文: 唐竞,许恩永,何水龙. 面向整车平顺性的商用车平衡悬架结构分析与优化设计研究[J]. 机械科学与技术,2021,40(11):1717-1722 doi: 10.13433/j.cnki.1003-8728.20200371
TANG Jing, XU Enyong, HE Shuilong. Research on Structural Analysis and Optimal Design of Commercial Vehicle Tandem Suspension with Vehicle Ride Comfort[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(11): 1717-1722. doi: 10.13433/j.cnki.1003-8728.20200371
Citation: TANG Jing, XU Enyong, HE Shuilong. Research on Structural Analysis and Optimal Design of Commercial Vehicle Tandem Suspension with Vehicle Ride Comfort[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(11): 1717-1722. doi: 10.13433/j.cnki.1003-8728.20200371

面向整车平顺性的商用车平衡悬架结构分析与优化设计研究

doi: 10.13433/j.cnki.1003-8728.20200371
基金项目: 广西创新驱动发展科技重大专项(AA18242033)、广西重点研发计划项目(AB21196029)及柳州市科学研究与技术开发计划课题(2020GAAA0404,2021AAA0104,2021AAA0112)
详细信息
    作者简介:

    唐竞(1972−),高级工程师,学士,研究方向为汽车设计,tangj@dflzm.com

    通讯作者:

    何水龙,副教授,硕士生导师, xiaofeilonghe@163.com

  • 中图分类号: U464

Research on Structural Analysis and Optimal Design of Commercial Vehicle Tandem Suspension with Vehicle Ride Comfort

  • 摘要: 为研究平衡悬架板簧与车桥连接方式对整车平顺性的影响,以国产某重型商用车为研究对象,分别建立滑板座及橡胶墩连接方式下整车刚柔耦合动力学模型并进行平顺性仿真对比,数据揭示橡胶墩连接方式下整车平顺性优于滑板座状态但仍有改善空间。建立以中桥振动传递路径下多测点三向平顺性为目标函数、橡胶墩平动及旋转刚度系数为优化变量及平衡悬架动行程为约束条件的数学模型。应用多软件耦合计算方法将动力学模型、多岛遗传算法、优化变量、目标函数及约束条件集成于多学科优化平台以开展橡胶墩刚度优化。对比优化前后橡胶墩刚度参数下整车平顺性响应,结果表明:橡胶墩刚度参数优化后整车平顺性较优化前提升约9%且主要源于中高频振动降低。
  • 图  1  平衡悬架结构图

    图  2  平衡悬架多体动力学模型

    图  3  整车刚柔耦合多体动力学模型

    图  4  频率加权均方根值

    图  5  振动加速度传递路径测点频率加权均方根值

    图  6  基于多软件耦合计算优化模型

    图  7  座椅导轨振动加速度频率加权均方根值

    图  8  平衡悬架对应车架各向振动加速度优化前后频域对比

    表  1  优化前后平衡悬架橡胶墩刚度对比

    优化变量 优化前 优化后
    x向平动/(N·mm−1 1000 600
    y向平动/(N·mm−1) 1000 680
    z向平动/(N·mm−1) 1000 600
    x轴旋转/(N·mm·(°)−1) 9000 6500
    y轴旋转/(N·mm·(°)−1) 9000 6500
    z轴旋转/(N·mm·(°)−1) 9000 6000
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-07-28
  • 刊出日期:  2021-11-05

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