基于虚拟体的弹炮刚柔耦合动力学优化设计研究  

Dynamic optimization design of a projectile-barrel rigid-flexible coupled system based on virtual substance technology

作　　者：陈世业[1] 潘玉竹[1] 王兰志[1] 魏巍[1] 原慧敏[2] 

机构地区：[1]北京航天发射技术研究所,北京100076 [2]长治清华机械厂,山西长治046012

出　　处：《振动与冲击》2016年第5期153-158,共6页Journal of Vibration and Shock

摘　　要：为了研究火炮系统结构参数对弹丸膛内运动和炮口扰动的影响,通过引入虚拟体,提出了一种充分反映弹炮间相互作用的火炮动力学建模方法,推导了含虚拟体项的自行火炮刚柔耦合动力学方程;同时,以某型履带式自行火炮为例,引入多目标优化算法,建立了以弹丸和炮口初始扰动为目标函数的火炮系统多目标优化设计模型,获得了在相同射击条件下试验测试数据和仿真计算结果的对比曲线,以及结构参数的优化结果。分析表明,采用该方法建立的模型能较真实地反映火炮系统的动态响应特性和弹丸的膛内运动规律,且在考虑弹丸与柔性身管接触碰撞的前提下实现了弹丸和火炮运动的多目标优化设计,可以为自行火炮的发射动力学研究提供一定参考。In order to investigate the influences of gun structural parameters on bullet motion and muzzle disturbance,a model considering bullet-barrel interaction was set up by introducing virtual substances. The rigid-flexible coupled dynamic equation of a self-propelled gun system containing virtual substances was derived. Taking a tracker selfpropelled artillery as an example, the system malti-objective optimization design model was built regarding initial disturbances of muzzle and projectile as objective functions. The comparative curves between the test data and the simulation results under the same firing condition were obtained,the optimization results of structural parameters were also gained. The results showed that this proposed model can reflect truly both the system dynamic response features and the bullet motion laws. Besides,the multi-objective design model was optimized considering bullet-barrel contact. The study results provided a reference for the launching dynamic investigation of self-propelled guns.

关 键 词：虚拟体 弹炮 刚柔耦合 多目标优化 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]