自动弹仓回转选弹动力学仿真及优化  

Dynamics Simulation and Optimization of Automatic Magazine's Turning-round Shell-selecting Device

作　　者：魏继卿[1] 许耀峰 刘小蒙[1] 解凤娟[1] 鲁玉祥[1] 

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《火炮发射与控制学报》2015年第2期36-39,共4页Journal of Gun Launch & Control

摘　　要：某大口径火炮弹药自动装填系统装备有链式回转自动弹仓,其回转选弹过程运行不平稳,冲击较多,受力状况复杂。基于多体动力学软件建立自动弹仓的虚拟样机模型,对回转选弹过程进行仿真分析,得到链轮的速度、位移和扭矩曲线,以及接触力变化曲线。结果表明,弹仓运动响应呈现出明显的周期性波动,弹仓回转受冲击较大;通过改进导轨设计和改变链轮连接方式,可有效减小冲击作用,对弹仓的优化设计有参考意义。For the chain type turns round automatic magazine used in an ammunition automatic loading system of a certain large caliber artillery, the motion of turning round and shell selec- tion is unstable, the impact is strong and the force is complex. The virtual prototype model of magazine was established based on the multi-body dynamics software. The velocity, displace- ment and torque curves of sprocket and contact force curve were obtained by simulation analysis of turning round and shell selection. The results show that there are obvious cyclical fluctua- tions in the motion response and the impact is strong, but the impact can be reduced signifi- cantly by improving the design of guide rail and changing connection mode of sprocket. This can provide a reference for optimal design of the magazine.

关 键 词：链式回转自动弹仓 动力学仿真 周期性波动 冲击 

分 类 号：TJ03[兵器科学与技术—兵器发射理论与技术]