机械制造与自动化2024，Vol.53Issue(4)：37-41,5.DOI:10.19344/j.cnki.issn1671-5276.2024.04.006
飞机货舱门锁闩机构运动可靠性分析
Motion Reliability Analysis of Aircraft Cargo Door Latch Mechanism
摘要
Abstract
The latch mechanism of aircraft cargo assists lifting motor to put the cabin door into precise position during the opening stage,and the hinge clearance caused by wear will lead to the error of output angle,resulting in reduction of motion reliability of the latch mechanism.In order to analyze the influence of hinge wear on the motion reliability of latch mechanism,a reliability calculation model is established accordingto the operating principle of the latch mechanism.A rigid-flexible coupling dynamic model of the cargo door is established to calculate the contact forces of the hinges.The wear depth of each hinge is calculated utilizing the Archard model.Based on the equivalent rod length theory,the wear depth is converted into the variation of rod length,and the parametric model is built for simulation and reliability calculation.The hole-pin contact model is built to verify the results of motion reliability.The results show the motion reliability analysis method can ensure calculation accuracy and improve analysis efficiency.关键词
飞机/锁闩机构/运动可靠度/刚柔耦合/铰链间隙/磨损Key words
aircraft/latch mechanism/motion reliability/rigid-flexible coupling/hinge clearance/wear分类
信息技术与安全科学引用本文复制引用
孙懿,刘宏博,刘雷..飞机货舱门锁闩机构运动可靠性分析[J].机械制造与自动化,2024,53(4):37-41,5.基金项目
国家自然科学基金面上项目(52075238) （52075238）
