单自由度车辆悬挂系统非线性振动特性研究  

Research on Nonlinear Vibration Characteristics of Single Freedom Degree Vehicle Suspension System

作　　者：杨明明[1] Yang Mingming

机构地区：[1]武汉铁路职业技术学院铁道机车车辆学院,武汉430205

出　　处：《机械制造》2022年第2期5-7,共3页Machinery

摘　　要：对非线性弹簧与阻尼共同作用下的单自由度车辆悬挂系统进行振动特性研究。在研究中,建立单自由度非线性系统动力学模型,利用Melnikov方法分析悬挂系统发生混沌的临界条件,求出悬挂系统发生斯梅尔马蹄意义下混沌时的轨道激励幅值阈值,同时分析非线性刚度、悬挂阻尼等参数对悬挂系统混沌区域的影响。在进行单自由度车辆悬挂系统参数设计时,可以避开发生混沌的区域。The vibration characteristics of the single freedom degree vehicle suspension system under the combined action of nonlinear spring and damping were studied.In the research,a single freedom degree nonlinear system dynamics model was established,the critical condition of chaos in the suspension system was analyzed by Melnikov method,and the threshold of orbital excitation amplitude when chaos in the sense of Smel's horseshoe occurs in the suspension system was obtained.The influence of linear stiffness,suspension damping and other parameters on the chaotic area of the suspension system was analyzed.When designing the parameters of a single freedom degree vehicle suspension system,the area where chaos occurs can be avoided.

关 键 词：车辆 单自由度 悬挂系统 非线性 振动 

分 类 号：U463.33[机械工程—车辆工程]