| 应用振型识别叶片裂纹故障初探 |
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| 引用本文： | 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. |
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| 作者姓名： | 徐可君 陈华 江龙平 |
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| 作者单位： | 海军航空技术学院航空机械系,青岛,266041 |
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| 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。
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| 关 键 词： | 航空发动机，叶片，裂纹，故障检测 |
DISCUSSION OF DISTINGUISHING BLADE CRACKS ON VIBRATION MODELS |
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| Xu Kejun,Chen Hua and Jiang Longping.DISCUSSION OF DISTINGUISHING BLADE CRACKS ON VIBRATION MODELS[J].Journal of Propulsion Technology,1998,19(5):66-69. |
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| Authors: | Xu Kejun Chen Hua and Jiang Longping |
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| Institution: | 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 |
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| 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 |
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| Keywords: | Aircraft engine Blade Crack Fault detection |
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