基于MATLAB的飞机起落架刹车耦合振动分析工具开发应用  

Development and application of coupled vibration analysis tool for aircraft landing gear braking based on MATLAB

作　　者：冯广 张明[2] 黄海清 蒋伟 胡晓航 Feng Guang;Zhang Ming;Huang Haiqing;Jiang Wei;Hu Xiaohang(AVIC Aircraft Landing Gear Co.,Ltd.,Hunan Changsha,410200,China;Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Jiangsu Nanjing,210016,China)

机构地区：[1]中航飞机起落架有限责任公司,湖南长沙410200 [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,江苏南京210016

出　　处：《机械设计与制造工程》2025年第4期109-114,共6页Machine Design and Manufacturing Engineering

基　　金：航空科学基金(20182852021)。

摘　　要：针对目前对飞机起落架结构与刹车系统耦合振动的研究没有形成一套快速、简洁分析流程的现状,建立飞机地面动力学模型和刹车装置模型,基于MATLAB开发了一套快速设计与分析工具,采用控制变量法,研究不同控制参数和结构参数对起落架系统耦合振动的影响。结果表明,起落架支柱刚度对系统耦合振动的振幅、速度、载荷影响较大。增加起落架支柱刚度可有效抑制起落架系统耦合振动现象,增大飞机初始滑跑速度对减弱起落架系统抖振现象略有帮助。For the research on the coupling vibration of landing gear structure and brake system,the current analysis steps are relatively complex,and there is no quick and simple analysis process.In this paper,the aircraft ground dynamics model and the brake device model are established,and a set of rapid design and analysis tools are developed based on MATLAB.The control variable method is used to consider the effects of different control parameters and structural parameters on the coupling vibration of the landing gear system.The results show that the stiffness of landing gear strut has a great influence on the amplitude,velocity and load of system coupling vibration.The coupling vibration of the landing gear system can be effectively suppressed by increasing the stiffness of the landing gear strut,and the buffeting of the landing gear system can also be reduced slightly by reducing the taxiing speed of the aircraft.

关 键 词：飞机 起落架系统 耦合振动 刹车 控制变量法 分析工具 

分 类 号：V226.3[航空宇航科学与技术—飞行器设计]