基于刚柔混合模型泵车臂架谐响应振动的研究  

Research on harmonic vibration of boom system of concrete pump truck based on model of rigid-flexible coupling body

作　　者：李典灿[1] 

机构地区：[1]湖南机电职业技术学院机械工程系,湖南长沙410010

出　　处：《机械设计》2013年第3期93-96,共4页Journal of Machine Design

基　　金：湖南省教育厅资助项目(11C0483)

摘　　要：主要研究了混凝土泵车输送管在周期性载荷作用下造成泵车臂架系统的谐响应振动问题。采用刚-柔耦合模型理论对某型号的泵车臂架系统创建虚拟样机模型,首先在Ansys中生成模态中性文件,然后将该文件导入ADAMS软件生成刚-柔耦合虚拟模型并进行谐响应动力学仿真分析。仿真分析结果表明臂架系统的1阶模态振动频率为0.71Hz,在X和Y方向上,1阶模态的位移频率响应幅值最大;臂架系统的2阶模态振动频率为0.89 Hz。臂架系统的2阶模态Z方向的振动位移和加速度同时达到最大。To study boom system harmonic vibration of the concrete pump truck caused by the periodical load and frictional force in the delivery pipe,a virtual prototype model of rigid-flexible coupling body of actual pump truck boom system was created to simulate harmonic vibration analysis.First,the file of modal neutral file is created in the software Ansys;then,the file is imported into the software ADAMS.The simulation result shows that one order modal frequency of boom system is 0.71 Hz.In X direction and Y direction,displacement amplitude of frequency response is the maximal.Two order modal frequency of boom system is 0.89 Hz,and vibration displacement and acceleration in Z direction of two order modal frequency is maximal.

关 键 词：混凝土泵车 刚柔耦合 谐响应振动 臂架系统 

分 类 号：TH113.1[机械工程—机械设计及理论]