南京航空航天大学学报（自然科学版）2026，Vol.58Issue(3)：606-614,9.DOI:10.16356/j.2097-6771.2026.03.014
考虑传动间隙的起落架摆振特性分析
Analysis of Landing Gear Shimmy Characteristics Considering Transmission Clearance
摘要
Abstract
To investigate the vibration characteristics of a landing gear gear-driven nose wheel steering system under transmission clearance conditions,this paper first conducts a simplified theoretical analysis to reasonably design anti-sway damping.Subsequently,the landing gear vibration coupled rigid-flexible multi-body dynamics simulation model is validated using both theoretical analysis results and vibration test results.Then,nonlinear factors such as gear transmission clearance and torque arm axial and radial transmission clearance are simultaneously considered in the vibration dynamics analysis,achieving a coupled rigid-flexible nonlinear dynamics model for landing gear with transmission clearance.Based on this model,a multi-factor study on the differences in vibration response characteristics is conducted.The results reveal that gaps can cause the landing gear to oscillate with constant amplitude,with gear transmission clearance having a greater effect on wheel swing angle than torque arm clearance.Additionally,the gap size is approximately proportional to the wheel swing angle.Increasing vertical load helps suppress vibration,while taxi speed primarily affects the wheel swing frequency.These findings provide theoretical reference for the design of landing gear anti-sway systems.关键词
摆振特性/齿轮传动/传动间隙/非线性/防摆系统设计Key words
shimmy characteristics/gear-driven/transmission clearance/nonlinear/anti-shimmy system design分类
航空航天引用本文复制引用
汪瑞,蔡君辉,陈潇,潘昊洋,李大让,包旭丹,张振华..考虑传动间隙的起落架摆振特性分析[J].南京航空航天大学学报（自然科学版）,2026,58(3):606-614,9.基金项目
国家自然科学基金(51805503) （51805503）
北京市自然科学基金(3202035). （3202035）
