摘要
某航空发动机杯形锁圈在使用中出现了断裂故障。为查明其断裂原因,从设计、制造、使用、装配等方面出发开展了故障分析工作,列出了故障树,并对故障树的各个因素开展了分析、试验与测量工作,明确了故障的失效模式,得出了锁紧螺母结构的不完善及锁紧方式不当是产生故障的原因。针对该原因提出了锁紧螺母及杯形锁圈结构的改进措施。
An aero-engine cup-shaped lock ring has a fracture failure during use.In order to find out the cause of the fracture,the fault analysis work is carried out from the aspects of design,manufacture,use and assembly.The fault tree is listed.The analysis,test and measurement of each factor of the fault tree are carried out.The failure mode of the fault is clarified.It is concluded that the imperfection of the lock nut structure and the improper locking method are the causes of the failure.Structural improvements to the lock nut and cup lock ring are proposed.
作者
王斌
王志哲
赵铁军
王凯
梁存良
WANG Bin;WANG Zhizhe;ZHAO Tiejun;WANG Kai;LIANG Cunliang(AECC Shenyang Liming Aero Engine Co.,Ltd.,Shenyang 110043,China)
出处
《机械工程师》
2019年第3期170-172,共3页
Mechanical Engineer