起落架指型锁解锁力特性的研究  

Research on Unlocking Force Characteristics of Landing Gear Finger Lock

作　　者：周福亮[1,2] 侯聿 张明 聂宏[2] ZHOU Fuliang;HOU Yu;ZHANG Ming;NIE Hong(State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China;Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China;School of Aeronautic Engineering,Nanjing Vocational University of Industry Technology,Nanjing 210023,P.R.China)

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016 [2]南京航空航天大学飞行器先进设计技术国防重点学科实验室,南京210016 [3]南京工业职业技术大学航空工程学院,南京210023

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2024年第1期88-96,共9页南京航空航天大学学报（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities (No.NS2019003)。

摘　　要：研究了指型锁的长度、直径和指尖角度等因素对解锁力的影响,获得了解锁力的理论计算公式并分析了影响解锁力的敏感参数。首先对指型锁解锁力进行理论计算,获得解锁力与各个参数改变的变化规律;然后通过实验验证模型的有效性;最后使用正交实验法分析了各参数对解锁力影响的敏感性。结果表明,本文所得计算公式有效可靠;指型锁长度、直径1、直径2与解锁力负相关,指尖角度与解锁力正相关;影响解锁力的参数敏感性由高到低分别为指型锁长度、直径1、指尖角度和直径2。The influence of the length,diameter and fingertip angle of the finger lock on the unlocking force is studied,the theoretical calculation formula of the unlocking force is obtained,and the sensitivity of parameters to the unlocking force is analyzed.Firstly,the change law of the unlocking force is obtained by theoretical calculation.Then,the validity of the model is verified by experiments.Finally,the sensitivity of each parameter to the unlocking force is analyzed by orthogonal experiment.The result shows that the theoretical calculation formula is effective and reliable,the length,diameter 1 and diameter 2 of the finger lock are negatively correlated with the unlocking force,while the fingertip angle is positively correlated with the unlocking force;and the sensitivity of parameters affecting the unlocking force from high to low is finger lock length,diameter 1,fingertip angle and diameter 2.

关 键 词：起落架 指型锁 敏感参数 正交试验 力分析 

分 类 号：V226[航空宇航科学与技术—飞行器设计]