飞机起落架用关节轴承故障分析及替代轴承研制

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英文篇名：Fault Analysis on Spherical Plain Bearings for Aircraft Landing Gear and Development of Alternative Bearings 作者：许志宏 英文作者：XU Zhihong;Fujian Longxi Bearing( Group) Co.,Ltd.;Fujian Province Spherical Plain bearings Enterprise Key Laboratory; 关键词：关节轴承 ; 飞机起落架 ; 冲击 ; 疲劳 ; 开裂 ; 铍青铜 英文关键词：spherical plain bearing;;aircraft landing gear;;impact;;fatigue;;cracking;;beryllium bronze 中文刊名：CUCW 英文刊名：Bearing 机构：福建龙溪轴承(集团)股份有限公司;福建省关节轴承企业重点实验室; 出版日期：2019-08-05 出版单位：轴承 年：2019 期：No.477 语种：中文; 页：CUCW201908010 页数：6 CN：08 ISSN：41-1148/TH 分类号：40-45

摘要

为解决某型飞机主起落架关节轴承开裂的故障,通过理论分析及控制变量的试验确定轴承故障原因,即摩擦磨损运动使轴承表面产生划痕等缺陷,且材料脆性大,在冲击载荷下缺陷逐步扩展成裂纹。研制了新型替代轴承,对新研轴承进行优化及应力分析,试验表明:新研轴承具有优良的耐冲击及摩擦磨损性能,可解决开裂故障。
        In order to solve cracking of spherical plain bearings for main landing gear of a certain type of aircraft,the fault reasons are determined from theoretical analysis and test of control variables. The defects such as scratches on surface of the bearings are caused by friction and wear motion,and the defects grow into cracks under impact load due to materials with high brittleness. The alternative bearings are developed,and the optimization and stress analysis are carried out. The tests show that the newly developed bearings have excellent impact resistance and friction and wear performance,and the cracking fault is solved.

引文

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