某高速发动机轴瓦异常磨损及止推环烧蚀综合故障原因分析  

Analysis on the Comprehensive Failure of Abnormal Wear of Bearing Bush and Erosion of Thrust Ring of A High Speed Engine

作　　者：徐鲁杰 刘帅祥 杨小锋 张青锋 韩莉 胡晶晶 乔展博 XU Lujie;LIU Shuaixiang;YANG Xiaofeng;ZHANG Qingfeng;HAN Li;HU Jingjing;QIAO Zhanbo(Representative Office of Naval Equipment,Luoyang 471039,China;Henan Diesel Engine Industry Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]海装驻洛阳地区军代室,河南洛阳471039 [2]河南柴油机重工有限责任公司,河南洛阳471039

出　　处：《内燃机》2023年第2期45-50,共6页Internal Combustion Engines

摘　　要：针对某高速发动机出现的曲轴连杆瓦和止推环的损坏故障,通过整机拆检,建立了以曲轴连杆瓦损坏为顶事件的故障树,并对故障树底事件进行逐层分析,最终锁定曲轴连杆瓦损坏为首发故障,由连杆瓦盖安装异常导致,止推环损坏为次生故障。同时使用有限元分析对故障原因进行了复现。In view of the damage fault of the crankshaft connecting rod bearing and thrust ring of a high-speed engine,a fault tree with the damage of the crankshaft connecting rod bearing as the top event is established through the disassembly and inspection of the whole machine,and the event at the bottom of the fault tree is analyzed layer by layer.Finally,the damage of the crankshaft connecting rod bearing is locked as the first fault,and the damage of the thrust ring is secondary due to the abnormal installation of the connecting rod bearing cap.At the same time,the cause of the fault is reproduced using finite element analysis.

关 键 词：曲轴连杆瓦 止推环 故障树 有限元 

分 类 号：TK428[动力工程及工程热物理—动力机械及工程]