上海交通大学学报(自然版) ›› 2017, Vol. 51 ›› Issue (3): 353-.

• 交通运输 • 上一篇    下一篇

地铁二系垂向悬挂系统最佳阻尼比的解析计算

周长城1,于曰伟1,赵雷雷1,2   

  1. 1. 山东理工大学 交通与车辆工程学院, 山东 淄博 255049;
    2. 北京邮电大学 自动化学院, 北京 100876
  • 出版日期:2017-03-29 发布日期:2017-03-29
  • 基金资助:

    国家自然科学基金项目(51575325), 山东省自然科学基金项目(ZR2013EEM007), 山东省重点研发计划项目(2015GGX105006) 资助

Analytical Calculation of the Optimal Damping Ratio of#br#  Secondary VerticalSuspension System for Subway

ZHOU Changcheng1,YU Yuewei1,ZHAO Leilei1,2   

  1. 1. School of Transportation and Vehicle Engineering, Shandong University of Technology,
    Zibo 255049, Shandong, China;
    2. School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2017-03-29 Published:2017-03-29

摘要:

摘要:  针对地铁二系垂向悬挂系统的阻尼匹配问题,提出了一种悬挂系统最佳阻尼比的解析计算方法.基于国内外几种典型轨道谱分析,利用曲线拟合方法构建适用于车辆运行平稳性理论分析的轨道高低不平顺输入模型;根据1/4车体3自由度垂向振动模型,以车体振动加速度的均方值最小为目标,利用随机振动理论和留数定理建立了地铁二系垂向悬挂系统最佳阻尼比的解析计算模型,并通过实例计算及仿真加以验证.结果表明,阻尼比的解析计算值与仿真值的最大相对误差仅为2.55%,从而验证了所建立的地铁二系垂向悬挂系统最佳阻尼比解析计算模型的正确性.

关键词: 地铁, 二系垂向悬挂系统, 最佳阻尼比, 解析计算

Abstract:

Abstract: For the problem of damping matching of subway secondary verticalsuspension system, an analytical calculation method of optimal damping ratio was provided. Based on the analysis of the typical track spectra, the track verticalprofile irregularity model built by the curve fitting method was established to effectively reflect the actual track traffic conditions and meet the theoretical analysis of vehicle running stability. According to the 1/4 vehicle threedegreeoffreedom verticalvibration model, the analytical calculation model of subway secondary verticalsuspension optimal damping ratio was built by the theory of random vibration and residue theorem. The model was aimed at minimum of mean square value of the vibration acceleration and was validated by the example calculation and simulation results. The maximum relative deviation of damping ratio between the analytical calculation value and the simulation value is only 2.55%. It shows that the analytical calculation model of subway secondary verticalsuspension optimal damping ratio is correct.

Key words: subway, secondary vertical suspension system, optimal damping ratio, analytical calculation

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