time-domain fault analysis
Bearing Fault Detection in Induction Motor Using Time Domain Analysis
... ABSTRACT: Approximately half of all operating costs in most processing and manufacturing operations can be attributed to maintenance. This is ample motivation for studying induction motor faults diagnosis and monitoring ...
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Analysis of flank and root crack in the spur gear using vibration signal technique for single stage gear box
... the analysis of the spur gear crack ...gear fault. In this paper, recorded vibration signals, which are in time domain, are converted into frequency domain by using Fast Fourier ...
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VIBRATION SIGNATURE AND TIME DOMAIN ANALYSIS OF ACQUIRED VIBRATION SIGNALS FOR FAULT DIAGNOSIS OF MACHINES
... 636 analysis and the characteristics of vibration signals plotted against ...an analysis carried out to ascertain known normal and faulty condition being well ...and fault condition further tested on ...
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Artificial Neural Network Based Fault Diagnosis of a Pulley-Belt Rotating System
... a fault detection system for a pulley-belt rotating system has been developed based on backpropagation artificial neural network ...Thus, time-domain signal analysis based feature extraction ...
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A real-time, practical sensor fault-tolerant module for robust EMG pattern recognition
... sliding analysis windows. In every window, four time-domain (TD) features (mean absolute value, number of zero crossings, waveform length, and num- ber of slope sign changes [1]) of the EMG signals ...
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Fault Detection of Two Stage Spur Gearbox using Time Domain Technique: Effect of Tooth Breakage and Improper Chamfering
... Gears are the most important mechanisms for transmitting power or torque, which play an important role in many sorts of machineries. Smooth operation and high efficiency of gears are necessary for the normal running of ...
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Analysis of the Power Blackout in the Ethiopian Electric Power Grid
... circuit fault (LLL-G) at a distance of ...this fault, a time domain simulation is run, and the speed, rotor angles, terminal voltages, the mechanical power input and electrical power output of ...
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ANN BASED FAULT DIAGNOSIS OF ROLLING ELEMENT BEARING USING TIME-FREQUENCY DOMAIN FEATURE
... In time-domain, the interpretation of the signal is done through several ...frequency domain based analysis Fourier transformations are employed to transform time domain signals ...
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Wavelet Analysis to Detect Fault in Clutch Release Bearing
... conventional time domain, frequency domain , time frequency domain Short Time Fourie Transform and wavelet transform based on Continous Wavelet Transform ...a fault ...
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TRANSFORMER FAULT DETECTION USING DWT-DCT
... both time and frequency by wavelets, the sub-band information can be extracted from the original ...the fault location can be done more ...of fault on the transmission line, a number of simulations ...
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Condition Monitoring of Ball Bearing Using Vibration Analysis and Feature Extraction
... the fault in the ...vibration analysis technique is very popular now ...vibration analysis of ball bearing is done by using FFT ...frequency domain and Time domain for healthy ...
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Analysis And Measurement Fiber Optic Fault By Using Optical Time Domain Reflectrometer (OTDR)
... This chapter will look into the various aspects and the methods on research methodology on project. This chapter will show the concept of the actual fiber optic cable and the various related analysis. ...
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Frequency-domain analysis for nonlinear systems with time-domain model parameter uncertainty
... —Frequency-domain analysis of dynamic systems is important across many areas of ...many analysis methods for linear systems, the problem is much less widely studied for nonlinear ...Frequency- ...
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Fault Classification of Reciprocating Compressor Based on Neural Networks and Support Vector Machines
... The SVM is a binary classifier it compares only two things at a time [7]. This means that if there are N items to be compared there will N*(N-1)/2 comparisons. Thus, in a real situation there will usually be will ...
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Consistency of PPP GPS and strong motion records: case study of Mw9 0 Tohoku Oki 2011 earthquake
... real- time monitoring system. The quality of GPS time-series are continuously being improved and show potential (Crowell et ...strong-motion time-series have never been fully tested for oscillations ...
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Seismic strain rates and the state of tectonic stress in the southern California region
... The abbreviations are: CTR, central Transverse Ranges; ESF, Elsinore fault; ETR, eastern Transverse Ranges; MVE, Mojave Desert domain; NIF, Newport-Inglewood fault domain; SJF, San Jacin[r] ...
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A Review on Artificial Intelligence Applied For Sophistication of Relay Protection
... certain time to estimate the criteria signals accurately enough to base the tripping decision on ...a fault at the end of the protection zone, the relay must wait for more precise estimate of the criteria ...
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Computer Software Package for Analysis of Speech Signal
... between time and frequency resolution ...detailed time variation ...the time-frequency representation undergoes significant temporal smoothing ...
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Modeling and Analysis of Printed Antenna Using Finite Difference Time Domain Algorithm
... This is one of those times when it is better to use cells with different sizes in the different directions. Following the example of sheen, et al. [5], we choose Δx = 0.389 mm, Δy = 0.4 mm and Δz = 0.265 mm. Now we have ...
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