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某型发动机第4级压气机叶片振动特性及断裂机理分析

AEROENGINE(2003)

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Abstract
某型发动机第4级压气机转子叶片断裂是由榫头工作面出现裂纹造成的.为此,对榫头断口进行了金相分析,对叶片振动特性进行了计算,对叶片静频和振动型进行了测量,并对叶片进行了疲劳破坏试验,结果表明,叶片断裂故障是由在慢车状态叶片发生1扭共振和榫头微动磨损造成的.
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