南京航空航天大学学报（自然科学版）2026，Vol.58Issue(2)：350-361,12.DOI:10.16356/j.2097-6771.2026.02.011
起落架收放机构关节轴承磨损分析与试验研究
Wear Analysis and Experimental Study of Spherical Plain Bearing in Landing Gear Retraction Mechanism
摘要
Abstract
As the core moving part of the landing gear retraction system,the dynamic performance and wear characteristics of the aeronautic low-speed heavy-load spherical plain bearings with self-lubrication directly determine the mechanism reliability.In order to test the comprehensive performance of the spherical plain bearing on the actuator cylinder of a landing gear retracting mechanism,the dynamic parametric model and joint wear model of the retraction mechanism with clearance are established in this paper,and the wear depth of the liner is predicted by numerical simulation.Then,the spherical plain bearing with the landing gear retraction bench test is carried out,and the special test bench is designed to test its key performance parameters such as starting torque under no load,liner wear,and friction torque under heavy load.The results show that the prediction accuracy of the wear model is more than 95%.The spherical plain bearing shows good service performance under the actual load spectrum,and no abnormal wear or stagnation occurs in 12 500 retraction cycles,which can meet the stringent requirements of the landing gear retraction mechanism.关键词
起落架收放机构/自润滑关节轴承/衬垫磨损/试验/运动精度Key words
landing gear retraction mechanism/self-lubricating spherical plain bearing/liner wear/test/kinematic accuracy分类
航空航天引用本文复制引用
王宁博,李福,鄢雨濛,梁涛涛,印寅..起落架收放机构关节轴承磨损分析与试验研究[J].南京航空航天大学学报（自然科学版）,2026,58(2):350-361,12.基金项目
国家自然科学基金(52172368,52302453,52275114) （52172368,52302453,52275114）
江苏省自然科学基金(BK20220135) （BK20220135）
航空航天结构力学及控制全国重点实验室(南京航空航天大学)自主研究课题(MCAS-I-0224G03) （南京航空航天大学）
南京航空航天大学前瞻布局科研专项资金(1001-ILB23008). （1001-ILB23008）
