弹道学报Issue(3)：12-17,6.
旋转伞子弹系统动力学建模与仿真
Dynamics Modeling and Simulation for Rotating Parachute-submunition System
摘要
Abstract
To simulate the motion of rotating parachute-submunition system more accurately,a dynamic model of 5-rigid-body system was set up with Lagrange equation of the first kind. Parachute cord was modeled as damping spring.The canopy and proj ectile were considered as rigid bodies.The centroid coordinates and Euler angles were selected to describe the positions of the system bodies,and the constraint equations were established,and the generalized forces were analyzed.The dynamic equations were obtained.The falling process of the system with the initial velocity of 0 was simulated by the model,and the spinning rate and the scanning angle of the sub-munition were obtained,which showed a great agreement with the parachute tower test.The model was used to simulate the ballistic characteristics of a terminal-sensitive proj ectile system at stable scanning stage.The results show that the 5-rigid-body model can simulate the traj ectory of terminal-sensitive proj ectile at steady scanning stage,and it offers references for the overall design of smart submunition system.关键词
旋转伞/子弹系统/第一类拉格朗日方程/多体动力学Key words
rotating parachute-submution system/Lagrange equation of the first kind/multibody dynamics分类
航空航天引用本文复制引用
马晓冬,郭锐,刘荣忠,吕胜涛..旋转伞子弹系统动力学建模与仿真[J].弹道学报,2015,(3):12-17,6.基金项目
国家自然科学基金项目(11102088) （11102088）
江苏省研究生培养创新计划项目(CXLX12-0210) （CXLX12-0210）
