...子系统；碰摩故障 [gap=1073]s：empirical mode decomposition (EMD)；hilbert envelope spectrum；the rotor system；rub fault ...
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声发射技术及在旋转机械碰摩故障诊断中的应用1_电子资料文库 关键字:声发射;碰摩故障;诊断; [gap=866]Key words: acoustic emission; rub-impact fault; diagnosis;
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With the increase of machinery operating speed and the decrease of gap between stator and rotor, the rub-impact fault of a rotor system is of much interest.
随着转子工作转速和效率的提高以及转子和定子之间间隙的减小，在工程中出现的碰摩故障越来越引人注目。
参考来源 - 转子系统碰摩的若干非线性动力学问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
研究了在有噪环境下发动机转子系统早期碰摩故障的检测问题。
The early rub impact fault detection of an engine rotor system in noise circumstances is researched.
通过与传统的振动信号检测方法相比较，说明声发射技术对碰摩故障检测更为敏感。
Through compared with vibration signals detection method, it is argued that the acoustic emission technology is more sensitive than vibration signals detect ion method in rub fault detection.
通过与传统的振动信号检测方法相比较，说明声发射技术对碰摩故障检测更为敏感。
Through compared with vibration signals detection method, it is argued that the acoustic emission technology is more sensitive than vibration signals detect ion method in rub fault de…
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