Journal Article10.1016/J.YMSSP.2009.04.004
Experimental investigations on vibration response of misaligned rotors
Tejas H. Patel,Ashish K. Darpe +1 more
211
TL;DR: In this paper, the authors investigated the influence of misalignment and its type on the forcing characteristics of flexible coupling and experimental investigation of the vibration response of misaligned coupled rotors supported on rolling element bearings.
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About: This article is published in Mechanical Systems and Signal Processing. The article was published on 01 Oct 2009. The article focuses on the topics: Vibration.
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Citations
The Application of High-Resolution Spectral Analysis for Identifying Multiple Combined Faults in Induction Motors
Arturo Garcia-Perez,Rene de Jesus Romero-Troncoso,Eduardo Cabal-Yepez,Roque Alfredo Osornio-Rios +3 more
TL;DR: Results show the methodology potentiality as a deterministic detection technique that is suited for detecting multiple features where the fault-related frequencies are very close to those analytically reported in literature.
241
Vibration response characteristics of a dual-rotor with unbalance-misalignment coupling faults: Theoretical analysis and experimental study
Nanfei Wang,Dongxiang Jiang +1 more
TL;DR: In this article, a dual-rotor system with unbalance-misalignment coupling faults is analyzed using the Runge-Kutta method and the cascade plot, time waveform and frequency spectrum.
154
A Combined Polynomial Chirplet Transform and Synchroextracting Technique for Analyzing Nonstationary Signals of Rotating Machinery
TL;DR: It is shown that the energy concentration of the time–frequency representation (TFR) of a strong frequency-modulated signal from a PCT transform can be further enhanced by an SET transform, and the TFR calculated from the proposed technique matches well with the ideal TFR, which demonstrates the superiority of the current technique in dealing with nonstationary signals having rapidly changing dynamics.
143
FPGA-Based Online Detection of Multiple Combined Faults in Induction Motors Through Information Entropy and Fuzzy Inference
Rene de Jesus Romero-Troncoso,R. Saucedo-Gallaga,Eduardo Cabal-Yepez,Arturo Garcia-Perez,Roque Alfredo Osornio-Rios,Ricardo Alvarez-Salas,Homero Miranda-Vidales,N. Huber +7 more
TL;DR: A novel methodology that is suitable for hardware implementation that merges information entropy analysis with fuzzy logic inference to identify faults like bearing defects, unbalance, broken rotor bars, and combinations of faults by analyzing one phase of the induction motor steady-state current signal is proposed.
128
Nonlinear vibrations of a dual-rotor-bearing-coupling misalignment system with blade-casing rubbing
TL;DR: In this article, a dual-rotor-bearing-coupling misalignment system with blade-casing rubbing is investigated based on numerical simulation and experimental measurement, and the results reveal the nonlinear vibration characteristics of the dualrotor bearing-Coupling system with local blade-case rubbing fault.
111
References
Vibration Analysis Of A Motor-Flexible Coupling-Rotor System Subject To Misalignment And Unbalance, Part I: Theoretical Model And Analysis
M. Xu,R.D. Marangoni +1 more
TL;DR: In this paper, a theoretical model of a complete motor-flexible coupling-rotor system capable of describing the mechanical vibration resulting from misalignment and unbalance was developed.
254
Effects of coupling misalignment on vibrations of rotating machinery
A. S. Sekhar,B.S. Prabhu +1 more
TL;DR: In this paper, the rotor bearing system is modelled using higher order finite elements by considering deflection, slope, shear force, bending moment with eight degrees of freedom per node.
231
•Book
Shaft Alignment Handbook
J. Piotrowski,H. Saunders +1 more
- 03 Aug 1995
TL;DR: The importance of proper shaft alignment has been discussed in the history of machinery alignment foundations, baseplates, machine casings, and piping strain flexible and rigid couplings defining misalignment.
176
Dynamic response of two rotors connected by rigid mechanical coupling with parallel misalignment
K.M. Al-Hussain,I. Redmond +1 more
TL;DR: In this article, the effect of parallel misalignment on the lateral and torsional responses of two rotating shafts (Jeffcott rotors) is examined with theoretical and numerical analysis.
162
Vibration response of misaligned rotors
Tejas H. Patel,Ashish K. Darpe +1 more
TL;DR: In this paper, the effect of misalignment on vibration response of coupled rotors is investigated using Timoshenko beam elements with all six dof and an experimental approach is proposed for the first time for determination of magnitude and harmonic nature of the misalignance excitation.
150