A Comprehensive 3-Steps Methodology for Vibration-Based Fault Detection,Diagnosis and Localization in Rotating Machines  

作　　者：Khalid M.Almutairi Jyoti K.Sinha 

机构地区：[1]Dynamics Laboratory,School of Engineering,The University of Manchester,Manchester M139PL,UK

出　　处：《Journal of Dynamics, Monitoring and Diagnostics》2024年第1期49-58,共10页动力学、监测与诊断学报（英文）

摘　　要：In any industry,it is the requirement to know whether the machine is healthy or not to operate machine further.If the machine is not healthy then what is the fault in the machine and then finally its location.The paper is proposing a 3-Steps methodology for the machine fault diagnosis to meet the industrial requirements to aid the maintenance activity.The Step-1 identifies whether machine is healthy or faulty,then Step-2 detect the type of defect and finally its location in Step-3.This method is extended further from the earlier study on the 2-Steps method for the rotor defects only to the 3-Steps methodology to both rotor and bearing defects.The method uses the optimised vibration parameters and a simple Artificial Neural Network(ANN)-based Machine Learning(ML)model from the earlier studies.The model is initially developed,tested and validated on an experimental rotating rig operating at a speed above 1st critical speed.The proposed method and model are then further validated at 2 different operating speeds,one below 1st critical speed and other above 2nd critical speed.The machine dynamics are expected to be significantly different at these speeds.This highlights the robustness of the proposed 3-Steps method.

关 键 词：bearing faults fault diagnosis machine learning rotating machines rotor faults vibration analysis 

分 类 号：O313[理学—一般力学与力学基础]