VB环境下飞行器锁机构尺寸误差对运动精度影响研究  

The Influence of Locking Mechanism Size Error of Aviation Aircraft on Kinematic Accuracy under VB Environment

作　　者：刘霞[1] 单宁[2] 张健 LIU Xia;SHAN Ning;ZHANG Jian(College of Electromechanical Engineering,Xi’an Polytechnic University,Xi’an Shaanxi 710048,China;Equipment Engineering College,Engineering University of CAPF,Xi’an Shaanxi 710086,China)

机构地区：[1]西安工程大学机电工程学院,陕西西安710048 [2]武警工程大学装备工程学院,陕西西安710086

出　　处：《机床与液压》2018年第19期129-132,共4页Machine Tool & Hydraulics

基　　金：陕西省教育厅科学研究项目(16JK1339);西安工程大学博士基金资助项目(BS15021)

摘　　要：锁机构运动精度对航空飞行器的安全工作至关重要。受多种误差因素影响,锁机构各构件间的运动尺寸会产生变形和误差,导致其失效,产生重大安全事故。为有效分析锁机构的运动精度,采用环路增量法建立了基于尺寸误差的锁机构运动精度模型,开发了锁机构运动精度可视化分析软件,仿真研究了带有尺寸误差的锁机构运动精度。结果表明:在相同误差条件下,点E、点F在X轴和Y轴方向上的投影分量以及点G在X轴方向上的投影分量对锁钩运动精度影响最大,故在机构优化设计时,需对上述5个设计变量进行重点设计。开发的分析软件能有效用于航空飞行器锁机构的运动精度分析,真实体现锁机构在实际工作中的运动误差和传力方向,同时也为锁机构的尺寸设计优化提供理论依据。The kinematic accuracy of the locking mechanism is critical to the safety of aviation aircraft.Because of affected by a variety of error factors,every component’s transmission size of locking mechanism should produce deformation and error.It should lead failure and produce major safety accidents.In order to analyze its kinematic accuracy effectively,the kinematic accuracy model of locking mechanism was built based on component’s size error through adopting the method of loop increment.The visual analysis software of kinematic accuracy for locking mechanism was developed.The kinematic accuracy of locking mechanism was simulated.The results show that the projection components of E,F in the X axis and Y axis and G in the X axis direction have the greatest influence on the motion accuracy of the hook in the same errors.Therefore,in the process of optimal design,the five variables should be focused on.The developed software can be effectively used to analyze the motion accuracy of the lock mechanism for aircraft,the motion error and force transfer direction of the lock mechanism are truly reflected in the actual work.At the same time,it provides theoretical basis for optimization design of lock mechanism.

关 键 词：航空飞行器 锁机构 杆长误差 运动精度 

分 类 号：TH122[机械工程—机械设计及理论]