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首页> 外文期刊>Journal of Sound and Vibration >Model based fault diagnosis of a rotor-bearing system for misalignment and unbalance under steady-state condition
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Model based fault diagnosis of a rotor-bearing system for misalignment and unbalance under steady-state condition

机译：稳态条件下转子轴承系统不对中和不平衡的基于模型的故障诊断

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摘要

Vibration monitoring is one of the primary techniques of condition monitoring of rotating machines. Shaft misalignment and rotor unbalance are the main sources of vibration in rotating machines. In this study a model based technique for fault diagnosis of rotor-bearing system is described. Using the residual generation technique, residual vibrations are generated from experimental results for the rotor bearing system subject to misalignment and unbalance, and then the residual forces due to presence of faults are calculated. These residual forces are compared with the equivalent theoretical forces due to faults. The fault condition and location of faults are successfully detected by this model based technique.
机译：振动监测是旋转机械状态监测的主要技术之一。轴未对准和转子不平衡是旋转机械振动的主要来源。在这项研究中，描述了一种基于模型的转子轴承系统故障诊断技术。使用残差生成技术，转子轴承系统的实验结果会产生未对准和不平衡的残留振动，然后计算由于存在故障而产生的残留力。将这些残余力与由于故障引起的等效理论力进行比较。通过这种基于模型的技术可以成功地检测故障状况和故障位置。

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