基于弹簧非线性的原点反共振振动机动力学分析  

Dynamic Analysis of Driving Point Anti-resonant Vibrating Machine Based on Spring Non-linearity

作　　者：焦春旺[1] 刘杰[1] 张金萍[2] 王倩倩[1] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110004 [2]沈阳化工学院机械工程学院,沈阳110042

出　　处：《机械制造》2010年第11期7-9,共3页Machinery

基　　金：国家自然科学基金资助项目(编号:50775029);东北大学博士研究生项目(编号:N090603008)

摘　　要：建立了弹簧非线性的原点反共振振动机动力学模型,应用平均法对系统的动力学方程进行求解,得出系统在不同参数组合情况下的幅频响应曲线。分析了上下质体弹簧非线性对系统振幅及其振幅稳定性的影响,提出利用弹簧的非线性降低共振区振幅幅值及提高振幅稳定性的方法,为完善反共振振动机的设计理论提供依据。A dynamic model of the driving point anti - resonant vibrating machine with nonlinear spring is built. The dynamic equations are solved with the help of the averaging method. The frequency curves with different parameter combinations are ob- tained, The influence of spring non - linearity on the amplitude and amplitude stability is analyzed. The method of reducing the resonance amplitude and improving the amplitude stability through the spring non - linearity is presented. Thus, the basis for en- hancing the design theory of anti - resonant vibrating machine is provided

关 键 词：反共振 非线性 振动机械 振幅稳定性 

分 类 号：TD156[矿业工程—矿山地质测量]