摘要
文章采用多刚体模型研究了伞绳的系力对降落伞拉直过程的影响。在物伞系统的动力学模型中将引导伞、伞包、伞绳及回收物处理为开链式多刚体,提出了n阶的递推算法来求解绳段间的约束力。利用该模型研究了伞绳的系力对物伞系统运动的影响。仿真结果表明伞绳的系力是影响伞包角加速度的关键因素。
A numerical simulation of parachute deployment is examined by multibody model.The parachute system is regarded as a collection of links. An order - n iteratively algorithm is constructed for the identification of constraint forces appearing in the equations. The model has been used to investigate the effects of line ties on parachute deployment. The simulation results show that line ties influence the angle acceleration of parachute bag.
出处
《航天返回与遥感》
2002年第2期9-14,共6页
Spacecraft Recovery & Remote Sensing
