九自由度可控翼伞系统滑翔及稳定性分析

9-DOF Simulation of Controllable Parafoil System for Gliding and Stability

在建立可控翼伞系统九自由度飞行动力模型的基础上，以翼伞面积为４０ｍ＾２的可控翼伞系统为例。对其滑翔及稳定性进行仿真计算分析，并与六自由度模型结果作了比较，着重分析了伞一回收物相对俯仰运动的稳定性，其结果可在系统设计和实验中参考。

In this paper, a 9-DOF (Degree of Freedom) flight dynamic model of controllable parafoil system is presented. Based on this model,the simulation program is developed to aid the study of the gliding performance and dynamic stability for such a system with a parafoil of 40 (sqm). Its results are compared with those of 6-DOF model. The stablitity of relative pitch is analysed in detail,and the methods for its improvement are given.