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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rub impact fault 碰摩故障
local rub-impact fault 局部碰摩故障
rub-impact fault diagnosis 碰摩故障诊断
impact-rub fault 碰摩故障
rub-impact and crack fault 碰摩裂纹耦合故障
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Besides, vibrating response law of imbalanced fault and rub-impact fault state at the rotor critical speed,were analyzed.
从研究转子过临界转速下的振动特性出发,分析了转子不平衡和碰磨故障状态下的响应规律。
参考来源 - 汽轮机转子故障状态下的振动仿真分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on the specific diagnostic cases of impact-rub fault, the limitation of classical linear method and the advantage of multidimensional method are analyzed by comparison.
通过具体的碰摩故障诊断实例，对比分析了经典线性方法的局限和多尺度非线性方法的优势。
The early rub impact fault detection of an engine rotor system in noise circumstances is researched.
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。
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