防空火箭炮刚柔耦合发射动力学仿真  

Simulation of Rigid-Flexible Coupling Launch Dynamics for Antiaircraft Rocket Launcher

作　　者：王雷[1] 马大为[1] 周克栋[1] 于存贵[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《弹道学报》2012年第4期72-76,共5页Journal of Ballistics

基　　金：国家部委基金项目(A2620061288)

摘　　要：为了研究防空火箭炮射击过程中的振动特性,以多柔体动力学理论为基础,采用"模态缩减法"生成柔性车大梁,用可以求解刚体和柔性体之间非线性接触问题的"节点法"生成柔性定向管,建立某车载防空火箭炮刚柔耦合动力学模型.结合相关实验参数进行了数值仿真,并与多刚体模型仿真结果相比较.结果表明:与纯刚性模型相比,考虑定向管和车大梁柔性变形的动力学模型更贴近于火箭炮的实际射击情况;柔性变形影响火箭弹出管口的初始扰动,进而影响射击精度.该研究对于改善火箭的初始扰动具有参考价值.To study the vi flexible coupling model dynamic theory. The flex an ut d il then flexible launch bration characte of an automobi ible automobile tubes were ge ized to solve the nonlinear contact correlative experiment parameters, the fi result ind beam and of rocket accuracy icates that compared launch tube＇s flexibili launcher; flexibility a The study possesses r ristics of antiaircraft rocket launeher（AARL）,the rigidle AARL was developed based on flexible multi-body beam was firstly created by the modal reduction method, nerated by means of nodal flex method which can be with the pure rigid mod ty taken into consideration,i ffects initial disturbance of eference value for improving the dynamic model with automobile s more close to the actual firing case rocket, and finally affects the firing the initial disturbance of AARL.

关 键 词：防空火箭炮 刚柔耦合 发射动力学 模态缩减法 节点法 

分 类 号：TJ393[兵器科学与技术—火炮、自动武器与弹药工程]