某空降自行火炮着陆过程动力学仿真研究  

Dynamics Simulation of Landing Impact Process for Airborne Type Self-Mechanized Gun

作　　者：何健[1] 马吉胜[1] 吴大林[1] 邓士杰[1] 

机构地区：[1]军械工程学院,河北石家庄050003

出　　处：《计算机仿真》2016年第2期17-21,46,共6页Computer Simulation

摘　　要：在空降火炮着陆速度优化控制的研究中,针对某空降型自行火炮着陆过程,进行抗冲击振动试验,为了解决实装空投试验时间长、风险大以及试验条件不可控等问题,利用计算多体系统动力学,运用虚拟样机技术建立了火炮虚拟样机模型;对着陆气囊缓冲过程进行数值仿真,将气囊缓冲作用以8个关于火炮下降高度的非线性作用力添加在火炮模型上。对火炮着陆过程虚拟样机模型进行了仿真分析,得到火炮着陆过程的动态参数,通过实装模拟空投的试验数据验证了模型的有效性,接着分析了着陆姿态不同对火炮所受到的冲击加速度的影响。通过仿真可以节约时间和成本,可为大型空降装备的抗冲击振动优化控制试验提供参考。Pointing to the shock and vibration test to the landing process for an airborne type self-mechanized gun,in order to solve the problem of long time,high cost,and uncontrolled test conditions of actual equipment airdrop,based on the computational multibody system dynamics,a virtual prototype model of the self-mechanized gun is built by using virtual prototype technology,based on the numerical results of finite element analysis to the airbag cushion process,eight nolinear forces are added on the gun model to replace the airbag cushion action. Simulation of the landing process for gun model is carried out,and the actual equipment airdrop test data verify the effectiveness of the model,the influence of different landing processes on the gun acceleration is analyzed. It can save time and cost by simulation and can provide reference to the shock and vibration for large airborne equipment.

关 键 词：自行火炮 着陆 动力学仿真 虚拟样机 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]