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RISTransverse Vibration of Geared-Rotor Integrated With Active Magnetic Bearings in Identification of Multiple Faults
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a novel concept of the modeling, active control of transverse vibration responses, and identification of fault parameters in a geared-rotor system integrated with active magnetic bearings (AMBs). The ...
Model Based Switching Crack Identification in a Jeffcott Rotor With an Offset Disk Integrated With an Active Magnetic Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vibration characteristics of a cracked Jeffcott rotor with an offset disk under the action of an active magnetic bearing (AMB), implemented to improve the radial positioning of the rotor, has been studied. Presence of the ...
Multifault Diagnosis of Induction Motor at Intermediate Operating Conditions Using Wavelet Packet Transform and Support Vector Machine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes advancement in the fault diagnosis of induction motors (IMs) based on the wavelet packet transform (WPT) and the support vector machine (SVM). The aim of this work is to develop and perform the fault ...
Identification of Speed-Dependent Active Magnetic Bearing Parameters and Rotor Balancing in High-Speed Rotor Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Estimating residual unbalances of a flexible rotor that is fully levitated on active magnetic bearings (AMBs) are challenging tasks due to the modeling error of AMB rotordynamic parameters. In this work, an identification ...
Online Diagnostics of Mechanical and Electrical Faults in Induction Motor Using Multiclass Support Vector Machine Algorithms Based on Frequency Domain Vibration and Current Signals
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: This paper demonstrates the development of a flexible fault diagnosis methodology that can detect up to ten different faults in the induction motor (IM), simultaneously. The major IM electrical faults, such as the broken ...
Design Optimization of Angular Contact Ball Bearing Using Genetic Algorithm and Grid Search Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present work proposes an approach to design and optimize the internal geometry of angular contact ball bearings (ACBBs) with the help of the genetic algorithm (GA) and the grid search method (GSM). Rolling bearings ...
Modeling, Analysis, and Identification of Parallel and Angular Misalignments in a Coupled Rotor-Bearing-Active Magnetic Bearing System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The standard techniques used to detect misalignment in rotor systems are loopy orbits, multiple harmonics with predominant 2X component, and high axial vibration. This paper develops a new approach for the identification ...
Experimental Time-Domain Vibration-Based Fault Diagnosis of Centrifugal Pumps Using Support Vector Machine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When the hydraulic flow path is incompatible with the physical contours of the centrifugal pump (CP), flow instabilities occur. A prolonged operation in the flow-instability region may result in severe damages of the CP ...
Multitude of Objectives Based Optimum Designs of Cylindrical Roller Bearings With Evolutionary Methods
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the design of cylindrical roller bearings (CRBs), a long life is one of the most essential criteria. However, the life of bearings depends on the multitude of factors that includes the fatigue, lubrication, and thermal ...