Multi-objective Optimization Design of Vented Cylindrical Airbag Cushioning System for Unmanned Aerial Vehicle  

作　　者：Shao Zhijian He Cheng Pei Jinhua 

机构地区：[1]Research Institute of Pilotless Aircraft,Nanjing University of Aeronautics and Astronautics

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2016年第2期208-214,共7页南京航空航天大学学报（英文版）

摘　　要：Multi-objective optimization design of the gas-filled bag cushion landing system is investigated.Firstly,the landing process of airbag is decomposed into a adiabatic compression and a release of landing shock energy,and the differential equation of cylindrical gas-filled bag is presented from a theoretical perspective based on the ideal gas state equation and dynamic equation.Then,the effects of exhaust areas and blasting pressure on buffer characteristics are studied,taking those parameters as design variable for the multiobjective optimization problem,and the solution can be determined by comparing Pareto set,which is gained by NSGA-Ⅱ.Finally,the feasibility of the design scheme is verified by experimental results of the ground test.Multi-objective optimization design of the gas filled bag cushion landing system is investigated. Firstly, the landing process of airbag is decomposed into a adiabatic compression and a release of landing shock energy, and the differential equation of cylindrical gas filled bag is presented from a theoretical perspective based on the ideal gas state equation and dynamic equation. Then, the effects of exhaust areas and blasting pressure on buffer charac- teristics are studied, taking those parameters as design variable for the multiobjective optimization problem, and the solution can be determined by comparing Pareto set, which is gained by NSGA-Ⅱ. Finally, the feasibility of the design scheme is verified by experimental results of the ground test.

关 键 词：AIRBAG VENT ORIFICE soft LANDING MULTI-OBJECTIVE optimization unmanned AERIAL vehicle (UAV) 

分 类 号：V224.1[航空宇航科学与技术—飞行器设计]