履带急救车非线性减振系统振动特性及运动稳定性分析

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (17) : 183-188.

论文

履带急救车非线性减振系统振动特性及运动稳定性分析

杨猛，徐新喜,苏琛，李福生，白松，谭树林

作者信息 +

A Study on Vibration Characteristics and Stability of Tracked Ambulance Nonlinear Damping System

YANG Meng, XUN Xin-xi，SU Chen, LI Fu-sheng, BAI Song，TAN Shu-lin

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文章历史 +

摘要

根据某履带急救车减振系统的结构特点，考虑非线性刚度的影响，建立了包含三次非线性耦合项的减振系统两自由度动力学方程，研究其振动特性。考虑主共振和1:1内共振的情况，采用多尺度法得到了减振系统的平均方程，以减振系统实际参数验证系统平均方程的准确性，分析了减振系统各参数对减振效果的影响；最后应用奇点分析理论研究了减振系统的运动稳定性，为提高减振系统的减振效率提供了理论依据。

Abstract

By considering the effect of the nonlinear stiffness, a 2-DOF dynamic coupling nonlinear vibration model with cubic nonlinearity is proposed according to structural characteristics and nonlinear characteristics of tracked ambulances. For the case of primary resonance and 1: 1 internal resonance, multiple scale method is used to derive the average equation of damping system. By taking the parameters of a tracked ambulance, the average equation is obtained and the influence of the parameters of the damping system on damping effect is then analyzed. Finally, the motion stability of the damping system is discussed by using the singularity theory. It provides a theoretical basis for improving efficiency of the damping system.

导出引用

杨猛;徐新喜;苏琛;李福生;白松;谭树林 . 履带急救车非线性减振系统振动特性及运动稳定性分析[J]. 振动与冲击, 2013, 32(17): 183-188

YANG Meng;XUN Xin-xi;SU Chen;LI Fu-sheng;BAI Song;TAN Shu-lin. A Study on Vibration Characteristics and Stability of Tracked Ambulance Nonlinear Damping System [J]. Journal of Vibration and Shock, 2013, 32(17): 183-188