东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (3): 415-417+426.DOI: -

• 论著 • 上一篇    下一篇

汽车非线性悬架系统共振特性的研究

冯霏;李凌轩;陈亚哲;闻邦椿;   

  1. 东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50535010)

Research on resonance characteristics of nonlinear suspension system of motor vehicles

Feng, Fei (1); Li, Ling-Xuan (1); Chen, Ya-Zhe (1); Wen, Bang-Chun (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Published:2013-06-20
  • Contact: Feng, F.
  • About author:-
  • Supported by:
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摘要： 建立了车辆两自由度非线性动力学模型及包含悬架刚度立方非线性的运动微分方程,利用多尺度法求解系统的幅频响应特性.通过数值仿真,获得了主共振、超谐波共振、次谐波共振以及内组合共振条件下的非线性悬架系统在不同非线性参数时的幅频响应.根据所获得的规律,合理地选择悬架的非线性参数,可以避开系统可能出现的跳跃及分岔等不稳定现象,从而有效地控制车辆的振动.

关键词: 汽车悬架, 非线性, 共振特性, 幅频特性, 内组合共振

Abstract: A 2-DOF nonlinear dynamic model was developed with a differential equation of motion involving cubic nonlinear stiffness given for motor vehicles and the amplitude-frequency response was solved by the method of multiple scales. A numerical simulation was done to reveal the amplitude-frequency response of the nonlinear suspension system involving different nonlinear parameters when there is a simultaneous coexistence including the main, superharmonic, subharmonic, and internal combination resonance. The results showed that the nonlinear parameters should be chosen reasonably so as to get rid of the possible instabilities of suspension system such as skipping and bifurcation, thus controlling efficiently the vibration of motor vehicles.

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