飞机起落架应急放机构可靠性分析  

Reliability Analysis of Landing Gear Mechanism During Emergency Extending

作　　者：赵劲彪 郑香伟[2] 冯蕴雯[1] 薛小锋[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072 [2]中国航空工业集团公司第一飞机设计研究院,陕西西安710089

出　　处：《机械设计与制造》2014年第8期31-33,共3页Machinery Design & Manufacture

基　　金：中国航空科学基金资助项目(2008ZA53006;2006ZD53050)

摘　　要：针对飞机起落架应急放失效导致飞行事故发生的情况,在机构简化和可靠性理论分析的基础上,对现代飞机起落架应急放的工作特点进行阐述,结合故障原因分析提出了起落架应急放机构分启动、连续运动及运动到位三个阶段可靠性分析模型,并给出求解方法。然后以某型飞机前起落架应急放机构为例,综合考虑飞行过程中应急放机构所承受的各种载荷对工作可靠性的影响,开展了可靠性计算及其影响因素分析。论文的工作可为起落架应急放机构设计提供参考。In view of the flight occident resulted from aircraft landing gear emergency extending system failure, and based on simplified mechanism and reliability theory, it elaborates the aircraft landing gear emergency extending characteristics, combining with failure analysis, and the reliability analysis model that consists of starting, continuous movement, movement in place three stages is put forward and the solving method is given. Then, with various loads during flight considered, the reliability calculation and analysis of influencing foctors are made, taking a certain type of aircraft landing gear emergency extending system as an example. The work can provide reference on mechanism design for landing gear emergency extending system.

关 键 词：起落架 应急放 机构 可靠性 

分 类 号：TH16[机械工程—机械制造及自动化] V226[航空宇航科学与技术—飞行器设计]