重型货物空投偏摆式脱离锁可靠度仿真分析  

Reliability Simulation Analysis on Parachute Ground Release for Heavy Cargo Airdrop

作　　者：王晶 周燕飞[1] 陈海松 朱方晨 WANG Jing;ZHOU Yanfei;CHEN Haisong;ZHU Fangchen(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2021年第5期91-94,102,共5页Machine Building & Automation

摘　　要：脱离锁是重型货物空投系统中降落伞和货台分离的关键部件。针对一种偏摆式脱离锁的可靠度,分析其故障和失效原因,确定影响脱离锁脱离的主要参数;将影响参数用均匀分布和正态分布随机化,设计脱离锁的可靠度仿真试验方案;应用蒙特卡罗方法,进行多次仿真试验并对数据进行分布拟合,计算得到脱离锁的可靠度约为99%,同时得到脱离锁的主要影响参数。该方法可用于定量计算脱离锁的可靠度,为重型货物空投提供理论依据。Parachute ground release is the key to the separation of parachute and cargo platform in heavy cargo airdrop system.To study its reliability,the main parameters that influence release are determined based on the analysis of the failure reasons.Through randomizing influence parameters with uniform distribution and normal distribution,the reliability simulation test scheme of the parachute ground release is built.By Monte Carlo method,several reliability simulation tests are carried out and the data are fitted,with the reliability of the parachute ground release being calculated about 99%,and the main influence parameters being obtained as well.The research method as above can be used to calculate the reliability of the parachute ground release in quantity,which provides theoretical basis for heavy cargo airdrop.

关 键 词：可靠度 脱离锁 仿真分析 蒙特卡罗方法 重型货物空投 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]