应用振型识别叶片裂纹故障初探

推进技术 ›› 1998, Vol. 19 ›› Issue (5): 66-69.

应用振型识别叶片裂纹故障初探

徐可君,陈华,江龙平

青岛海军航空技术学院航空机械系;青岛海军航空技术学院航空机械系;青岛海军航空技术学院航空机械系

发布日期:2021-08-15

DISCUSSION OF DISTINGUISHING BLADE CRACKS ON VIBRATION MODELS

Dept.of Mechanical Engineering,Navy Aviation Technique Academy,Qingdao,266041;Dept.of Mechanical Engineering,Navy Aviation Technique Academy,Qingdao,266041;Dept.of Mechanical Engineering,Navy Aviation Technique Academy,Qingdao,266041

Published:2021-08-15

摘要/Abstract

摘要： 给出了一种应用叶片的弯曲振型识别叶片裂纹的方法。假设叶片为无扭曲的矩形等截面悬臂梁，同时将裂纹看成沿叶宽等深度扩展的开口裂纹，最后对应用该法检测叶片裂纹的可行性进行了探讨并提出了建议。

关键词: 航空发动机;叶片;裂纹;故障检测

Abstract: A method for distinguishing the position and depth of cracks on the flexural vibration models in a blade is presented.It is assumed that the blade is a nontorsional beam with rectangular cross section,and the open cracks extend through the width of the beam with constant depth.Finally,discussion and suggestion are offered on a diagnostic system of blade cracks

Key words: Aircraft engine;Blade;Crack;Fault detection

徐可君,陈华,江龙平. 应用振型识别叶片裂纹故障初探[J]. 推进技术, 1998, 19(5): 66-69.