发动机上典型零件失稳故障分析  

Malfunction Analysis of the Model Buckling Failure about Aero-engine Part

作　　者：吴长波[1] 覃志贤[1] 

机构地区：[1]中国燃气涡轮研究院,四川成都610500

出　　处：《燃气涡轮试验与研究》2009年第4期30-33,共4页Gas Turbine Experiment and Research

摘　　要：本文首先介绍了某发动机薄壁筒体结构的喷管隔热罩在试验时发生的压力失稳故障,分析了其故障原因并给出了临时改正措施;其次介绍了某压气机试验时因涡流器失稳而迫使试验停止的失稳故障,并给出了故障原因和改正措施。本文所列举的两个典型零件的失稳故障及其原因,希望能为结构强度设计人员提供参考,并在今后类似的结构设计中加以注意。First, this paper introduced the buckling failure of heat-shield thin-wall cylinder during an engine experiment, analyzed the reason of failure and proposed temporary procedures of improvement. Secondly, another buckling failure of vortex reducer, which led compressor experiment to break off, was introduced. Two buckling failures discussed in this paper may draw attention of engineers of strength ＆ vibration study.

关 键 词：薄壁筒体 屈曲失稳 涡流器 

分 类 号：V263.6[航空宇航科学与技术—航空宇航制造工程]