某多管火箭炮车架行军强度分析

Certain Type Multiple Rocket Launcher Frame Strength Analysis of Marching

针对某多管火箭炮车架在进行行军强度试验时能否满足强度要求的问题,建立一种基于ADAMS和Abaqus软件联合仿真方法的多管火箭炮刚柔耦合模型。通过ADAMS柔性体理论建立火箭炮行驶过程的刚柔耦合模型,利用动力学仿真得到外接点在垂直方向上的位移,以此为边界条件,在Abaqus中计算出车架的应力应变,并通过仿真试验进行验证。试验结果表明:2种软件的结合使用,避免了有限元软件的耗费时间长,对复杂模型难以收敛以及多体动力学软件处理模型不精确的缺点。

In order to prove whether the strength of multiple rocket launchers＇ frame is meet the requirement of the march or not, based on ADAMS and Abaqus software, establish rigid-flexible coupled model of multiple rocket launcher. Through ADAMS flexible theory to establish rigid-flexible coupled model of rocket launcher running process, use dynamic simulation to acquire displacement of exterior point in vertical direction. Take this as boundary condition, calculate frame stress and strain in Abaqus, then verify it by simulation test. The test results show that： combine two software methods can avoid shortcomings of taking a long time and hard to converge to calculate complex models as well as the inaccuracy of model in multi-body dynamics software.