• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2017, Vol. 53 ›› Issue (8): 132-137.doi: 10.3901/JME.2017.08.132

• • 上一篇    下一篇

低地板有轨电车准零刚度二系悬挂系统研究

孙煜, 宫岛, 周劲松, 孙文静, 夏张辉   

  1. 同济大学铁道与城市轨道交通研究院 上海 201804
  • 出版日期:2017-04-15 发布日期:2017-04-15
  • 作者简介:

    孙煜,男,1991年出生,博士研究生。主要研究方向为铁道车辆动力学。

    E-mail:1410745@tongji.edu.cn

    宫岛(通信作者),男,1985年出生,博士,助理教授,硕士研究生导师。主要研究方向为铁道车辆动力学。

    E-mail:gongdao@tongji.edu.cn

  • 基金资助:
    * “十二五”国家科技支撑计划资助项目(2015BAG19B02,2015BAG13B01); 20160528收到初稿,20161205收到修改稿;

Study on Second Quasi-zero-stiffness Suspension of Low-floor Tramcar

SUN Yu, GONG Dao, ZHOU Jinsong, SUN Wenjing, XIA Zhanghui   

  1. Institute of Rail Transit, Tongji University, Shanghai 201804
  • Online:2017-04-15 Published:2017-04-15

摘要:

利用一对横向放置的线性弹簧在垂向产生负刚度,与垂向正刚度线性弹簧并联组成准零刚度隔振系统,结合低地板有轨电车转向架U型侧架,设计出适用于低地板有轨电车的准零刚度二系悬挂系统。对所设计的二系悬挂系统分别进行静力学、动力学分析,得到其刚度特性和传递率特性。通过SIMAPCK动力学仿真软件建立了三车连挂低地板有轨电车模型,与MATLAB/SIMULINK进行联合仿真。研究结果表明,与等效线性弹簧二系悬挂系统相比,准零刚度二系悬挂系统隔振频率范围更广,尤其是在低频阶段,具有良好的隔振特性,可以有效减小车体振动,提高运行平稳性,改善乘坐舒适度。

关键词: 传递率, 联合仿真, 运行平稳性, 准零刚度, 低地板有轨电车

Abstract:

The quasi-zero-stiffness is obtained by connecting in parallel elements with positive and negative stiffness, in which the negative stiffness is obtained by a pair of linear springs placed horizontally. An appropriate second suspension system is designed by combining the quasi-zero-stiffness with the U type side frame of the tramcar. The stiffness characteristics and transfer rate of the second suspension system are gained respectively by static and dynamic analysis. A low-floor tramcar model with three cars is established by SIMPACK, which was co-simulated with MATLAB/SIMULINK. The results shows that compared with the equivalent linear suspension, the quasi-zero-stiffness suspension is of extent isolation frequency and better vibration isolation characteristics especially in the low frequency range. The low-floor tramcar with second quasi-zero-stiffness suspension is of lower vibration in car body, better running stability and ride comfort.

Key words: co-simulation, quasi-zero-stiffness, rail quality, Transfer rate, low-floor tramcar