群伞减速系统刚柔耦合动力学建模与分析
Rigid-flexible coupling dynamic modeling for parachute cluster deceleration system
王海涛 1雷江利 2荣伟2
作者信息
- 1. 国防科技大学 空天科学学院,长沙 410073
- 2. 北京空间机电研究所,北京 100094
- 折叠
摘要
群伞减速系统被新一代可重复使用载人飞船普遍采用,对群伞系统进行动力学分析评估是航天器减速任务设计分析的重要环节.针对航天器群伞减速系统建立了多阶段、变结构、多维度刚柔耦合非线性多体动力学模型,分析了系统动力学模型的特点,指出群伞减速系统动力学具有复杂系统动力学的属性.通过仿真分析了航天器、减速伞和主伞在系统仿真中的动力学和运动参数,并对蒙特卡洛偏差仿真的结果进行了总结.仿真验证和分析结果表明,建立的刚柔耦合动力学模型能够准确模拟群伞减速系统工作过程和群伞碰撞等动力学行为.最后,针对降落伞减速系统动力学存在的问题和未来发展进行了分析和建议.
Abstract
The parachute cluster deceleration system is widely used by the new generation reusable manned space-craft,and dynamic analysis and evaluation of the parachute cluster system is an important task in the design and analysis of spacecraft deceleration missions.A multi-stage,variable structure and high-dimensional rigid-flexible cou-pling nonlinear multi-body dynamics model is established for the spacecraft parachute deceleration system.The char-acteristics of the system dynamics model are analyzed,and it is pointed out that the dynamics of the parachute cluster deceleration system have the dynamics properties of complex system.The dynamics and motion parameters of space-craft,the drogue,and the main parachute are simulated and analyzed,and the results of Monte Carlo uncertainty simulation are summarized.The simulation and analysis results show that the established rigid-flexible coupling dy-namic model can accurately simulate the working process of the parachute cluster deceleration system and the dy-namic behavior of parachute group collisions.Finally,the existing problems and future developments in the dynamics of parachute deceleration systems are also discussed.
关键词
群伞系统/刚柔耦合/复杂系统/动力学建模/减速Key words
parachute cluster system/rigid-flexible coupling/complex system/dynamic modeling/deceleration引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据