基于龙格-库塔算法对降落伞空投的研究

Research for Parachute Airdrop Based on Runge-Kutta Algorithm

以降落伞空投系统中的降落伞拉直和充气过程以及物伞系统的稳定降落过程为研究目标,采用动力学分析法建立了物伞空投系统完整的运动模型,提出了多吊带系统分析和物伞系统夹角变化的新方法。根据已有的降落伞性能计算模型和物伞系统运动模型,采用龙格-库塔法对降落伞空投全过程进行了仿真。通过参数调试来分析空投高度?降落伞的名义面积等因素对降落伞空投系统的影响,指出了实际系统的改进方向,为降落伞空投系统的设计提供了理论依据。

Focused on the parachute deployment and inflation, and the trajectory of cargo parachute system in the para- chute airdrop system, the trajectory model of cargo parachute system was built with the dynamics method. The analytic method of the multi-sling system and angle between the cargo and parachute system is proposed. The process of the parachute airdrop was simulated with Runge-Kutta algorithm on the basis of parachute performance model and carge parachute system trajectory model. With the analysis of the effect of everal factors concerned with the airdrop such as height of airdrop and par- achute resistance coefficient on the parachute airdrop system. The improvement direction of the available actual systems is pointed out which provides a theoretic base for the design of cargo parachute airdrop system.