摘要
末敏弹的稳态扫描阶段为弹上扫描装置提供了一个稳定的平台,需要同时达到下降速度、旋转速度以及子弹扫描角的稳定。为了便于分析旋转伞和子弹的运动姿态,采用拉格朗日力学方法建立了伞弹系统的七自由度模型。与欧拉方法相比,该方法回避了伞-弹之间的复杂约束力,并且仿真过程中不会出现奇点。最后通过算例,分析了伞弹系统稳态扫描阶段的弹道特性,得到了各弹道参数达到稳定状态的时间,为末敏弹的优化设计提供了思路。
Rotating Parachute Systems provide a stable platform for scanning equipment. Usually, it is difficult to meet all the needs of some elements such as： velocity of descent, rate of spin, and sub-munition in- clination angle against vertical and dynamic stability. A 7-degree-of-freedom dynamic model is developed for the convenience of analyzing the attitudes of the Rotating Parachute Systems. Compared with Euler method, the complicated restraint forces are avoided and the odds in simulating process are solved. The movement law of the parachute-bomb system and the scan laws of sensitive implement are gained by an al- gorithm question. The results can be a theoretical reference for optional design of the parachute-load system.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2016年第1期19-23,共5页
Journal of Air Force Engineering University(Natural Science Edition)
关键词
末敏弹
拉格朗日力学
稳态扫描
动力学模型
sensitive cluster
Lagrange Mechanics
steady spinning
dynamic model
