履带张紧装置柔体动力学模型及其仿真  

Flexible Body Dynamics Model and Simulation of Tension Adjustor

作　　者：邱志勇[1] 黄华[1] 董明明[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《计算机仿真》2007年第1期254-257,共4页Computer Simulation

摘　　要：为了校核和评价所设计的履带调整器的动力学性能,减少试验所需试制的样件数量,通过建立多刚体与多柔体系统的混合模型来模拟零件的实际工况,对零件进行校核。采用多体动力学软件RecurDyn和通用有限元分析软件ANSYS相结合,建立履带车辆的刚柔混合模型并对其仿真。得出了车辆在E级路面上以30km/h的车速平跑过程中曲臂和拉臂内部应力变化情况,应力云图以动画表示出仿真过程中零件各个部位的应力变化,主要承载区和危险部位,从应力曲线得到各个节点在每一时刻对应的应力数值。该方法弥补了ANSYS不能分析零部件实际工作过程中的应力应变的不足,也可应用于其他机械系统。In order to check and evaluate the dynamic capability of the designed track tension adjustor, reduce the sample number needed in experimentation, the paper uses a hybrid model consisting of rigid and flexible bodies to simulate the actual work conditions of the parts and to check the parts. The dynamics analysis software RecurDyn and finite element analysis software ANSYS are adopted to set up the flexible bodies. The inner stress of rocker and arm is gained during the vehicle running at 30km/h on the E class road. Color nephogram showes the stress change in every part, the main load area and danger zone during the simulation. The stress values at each node corresponding to each time are got from stress curve. This method offsets the shortage that ANSYS can＇ t analyse parts＇ stress and can be used in other mechanical systems.

关 键 词：履带调整器 柔体动力学 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]