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节点刚度和惯质对减振器及轨道车辆悬挂性能的影响

陈文韬 陈政清 封周权 樊友权

陈文韬, 陈政清, 封周权, 樊友权. 节点刚度和惯质对减振器及轨道车辆悬挂性能的影响[J]. 机械科学与技术, 2019, 38(11): 1647-1653. doi: 10.13433/j.cnki.1003-8728.20190187
引用本文: 陈文韬, 陈政清, 封周权, 樊友权. 节点刚度和惯质对减振器及轨道车辆悬挂性能的影响[J]. 机械科学与技术, 2019, 38(11): 1647-1653. doi: 10.13433/j.cnki.1003-8728.20190187
Chen Wentao, Chen Zhengqing, Feng Zhouquan, Fan Youquan. Influence of Joint Stiffness and Inertance on Performance of Damper and Train Suspension[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(11): 1647-1653. doi: 10.13433/j.cnki.1003-8728.20190187
Citation: Chen Wentao, Chen Zhengqing, Feng Zhouquan, Fan Youquan. Influence of Joint Stiffness and Inertance on Performance of Damper and Train Suspension[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(11): 1647-1653. doi: 10.13433/j.cnki.1003-8728.20190187

节点刚度和惯质对减振器及轨道车辆悬挂性能的影响

doi: 10.13433/j.cnki.1003-8728.20190187
基金项目: 

湖南大学汽车车身先进设计制造国家重点实验室自主研究课题 71860006

湖南大学汽车车身先进设计制造国家重点实验室自主研究课题 71865004

详细信息
    作者简介:

    陈文韬(1988-), 博士后, 工程师, 研究方向为车辆振动控制理论及方法、阻尼减振技术及装置, cwt880229@163.com

    通讯作者:

    陈政清, 教授, 院士, 博士生导师, ZQCHEN@HNU.EDU.CN

  • 中图分类号: U270.1

Influence of Joint Stiffness and Inertance on Performance of Damper and Train Suspension

  • 摘要: 为了研究节点刚度和惯质对减振器阻尼性能及悬挂减振性能的影响,基于等效原理和强迫振动原理,首次建立了统一的等效"质量-弹簧-阻尼"(MSD)模型和基于节点刚度和惯质的垂向动力学模型。数值分析结果表明:等效阻尼与原阻尼成比例关系,比例因子为刚度比、质量比、阻尼比和频率比的函数;等效MSD模型的振动特性与不考虑节点刚度时的趋势一致,但放大因子有所增加;节点刚度和惯质对减振器和悬挂系统特性的影响效果相反,但综合考虑节点刚度和惯质可以得到合理的悬挂设计。该结果为悬挂结构优化设计提供了一种新的思路和方法。
  • 图  1  典型的垂向动力学模型

    图  2  减振器Maxwell等效模型

    图  3  考虑节点刚度的MSD单轮对模型

    图  4  式(4)的旋转矢量图

    图  5  考虑节点刚度和惯质的减振器模型

    图  6  考虑节点刚度的ISD结构振动模型

    图  7  式(10)的旋转矢量图

    图  8  等效MSD模型

    图  9  MSD结构振幅放大因子与频率比的关系

    图  10  MSD结构加速度放大因子与频率比的关系

    图  11  ISD等效阻尼比与刚度比和质量比的关系

    图  12  ISD结构振幅放大因子与频率比的关系

    图  13  ISD结构加速度放大因子与频率比的关系

    表  1  图 9中各曲线等效阻尼比计算值

    序号 λ n ξ ξS
    1 1 1 0.2 0.185 695
    2 1 2 0.2 0.196 116
    3 1 1 0.3 0.257 248
    4 1 2 0.3 0.287 348
    5 1 5 0.2 0.199 363
    6 1 5 0.3 0.297 863
    7 1 10 000 0.2 0.2
    8 1 10 000 0.3 0.3
    下载: 导出CSV

    表  2  不同节点刚度下的等效阻尼比

    序号 λ μ n ξ ξS
    1 1 0.15 0.5 0.2 0.200 9
    2 1 0.15 1 0.2 0.227 3
    3 1 0.15 2 0.2 0.225 7
    4 1 0.15 5 0.2 0.219 4
    5 1 0.15 10 000 0.2 0.213 6
    6 1 0 10 000 0.2 0.2
    下载: 导出CSV
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  • 收稿日期:  2019-04-29
  • 刊出日期:  2019-11-05

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