伞衣优化设计对群伞系统气动特性的影响分析  

Analysis of the influence of canopy optimization design on aerodynamic characteristics of cluster parachute system

作　　者：董海波 隋蓉 黄明星[1] DONG Haibo;SUI Rong;HUANG Mingxing(Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China)

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《国防科技大学学报》2022年第3期121-130,共10页Journal of National University of Defense Technology

基　　金：国家基础研究计划资助项目(JCKY2020110C096)。

摘　　要：发展群伞减速着陆系统是实现大载重航天器高效减速和无损着陆要求的关键。借助空气动力学理论对群伞系统中单具降落伞的气动性能进行仿真分析,以仿真结果做参考开展大型环帆伞构型优化设计。在仿真方法正确性和收敛性的基础上,以多种单伞构型条件下的群伞系统作为研究对象,重点研究群伞系统在伞衣充满状态时的气动阻力性能和姿态稳定性。通过对仿真结果进行流场分析和数据对比发现,开窗开缝设计既能够确保群伞系统具有良好的阻力特性,又能够维持群伞系统的工作稳定性,避免单伞之间由于受力而发生碰撞现象。Developing the cluster parachute deceleration landing system is a key to realize the requirements of efficient deceleration and lossless landing of heavy-duty spacecraft.Based on aerodynamic theory,simulation analysis was performed on aerodynamic performance of single parachute in the parachute system.Taking simulation results as a reference,the configuration design of large ring sail umbrella was optimized..Based on the correctness and convergence of the simulation method,the cluster parachute system with multiple single parachute configurations was regarded as a research object,the aerodynamic resistance performance and attitude stability of the parachute system when the canopy is full were studied Through the flow field analysis and data comparison of the simulation results,it is found that the parachute with window and gap can not only ensure the good resistance characteristics of the cluster parachute system,but also maintain the working stability of the parachute system.This design can avoid the collision between single parachute due to force.

关 键 词：群伞系统 大载重回收 优化设计 数值模拟 气动特性 

分 类 号：V448.15[航空宇航科学与技术—飞行器设计]