冲压式翼伞开伞仿真计算  

Simulation of Parafoil Opening

作　　者：李国光[1] 邓正才[1] 

机构地区：[1]国防科技大学航天技术系

出　　处：《国防科技大学学报》1993年第4期16-22,共7页Journal of National University of Defense Technology

摘　　要：本文分析了冲压式翼伞开伞的特点,提出了一个展弦向二维开伞模型,建立了伞衣的径向运动方程。在推导系统运动方程和分离体运动方程的基础上,建立翼伞开伞仿真状态方程,用龙格-库塔法求解,给出开伞充满时间、开伞动载、翼伞速度和位置坐标等参数的变化值。本文提供的开伞仿真计算软件包,可用于各类冲压式翼伞的开伞仿真计算。In this paper, based on analysis of parafoil opening properties, two-dimensionalopening model of parafoil is presented, canopy radial equation of motion is established.At the same time, parafoil system is assumed to be a two-particle-elastic rod model,then the equation of motion for parafoil system, canopy, and payload is derived. Finally,parameters such as filling time, shock force, inflow velocity, etc. are obtained using com-puter simulation. The simulation program can be used in some parafoil design.

关 键 词：翼伞 开伞 仿真 冲压式 伞衣 

分 类 号：V445.23[航空宇航科学与技术—飞行器设计]