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bearing faults

FFT analysis of ball bearing faults using AE

FFT analysis of ball bearing faults using AE

... of bearing faults in rotating machines plays an important role in industrial plants since it avoids the occurrences of serious failure in many parts of the machinery that causes plant ...the bearing ...

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Time Encoded Signal Processing and Recognition of Incipient Bearing Faults

Time Encoded Signal Processing and Recognition of Incipient Bearing Faults

... identify bearing faults using TESPAR singly and in ...of bearing diagnosis using TESPAR with raw time- domain data, envelope analysis of the data and then combining TESPAR with envelope ...

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Vibration source identification caused by bearing faults based on SVD-EMD-ICA

Vibration source identification caused by bearing faults based on SVD-EMD-ICA

... Abstract : Aiming at the sensitivity to noises and the underdetermined number of signal in a single channel signal BSS (blind source separation), a high accuracy method of BSS was proposed through the proper combination ...

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Frictional behavior of synthetic gouge bearing faults under the operation of pressure solution

Frictional behavior of synthetic gouge bearing faults under the operation of pressure solution

... Seismogenic faulting in the continental crust mostly oc- curs at depths of 5–20 km at lithostatic pressures of 100–400 MPa and temperatures of 100–350 ◦ C (Sibson, 1983; Scholz, 1990). Under these pressure-temperature ...

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Detection of Bearing Faults Using a Novel Adaptive Morphological Update Lifting Wavelet

Detection of Bearing Faults Using a Novel Adaptive Morphological Update Lifting Wavelet

... In this paper, an AMULW with perfect reconstruction is developed to detect rolling element bearing faults. Com- pared with Fourier transforms using the same filter and wavelets being translation and ...

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Rolling Element Bearing Faults Detection, Wavelet De noising Analysis

Rolling Element Bearing Faults Detection, Wavelet De noising Analysis

... The DAQ card has a low pass anti-aliasing filter with selectable cutoff frequency in the range of 0.25 kHz. A Lab View virtual instrument was developed to acquire the bearing signals. Experiments were conducted ...

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Development of an expert system for diagnosis of bearing faults of 
		rotating components in a power plant

Development of an expert system for diagnosis of bearing faults of rotating components in a power plant

... the Bearing Key point, Enter Speed in RPM, Enters Velocities and Buttons such Reset, Result, Recommendation and Save each having Specific ...Displays faults when the Tri-axial readings are well beyond ...

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Condition Monitoring of Bearing Faults Using the Stator Current and Shrinkage Methods

Condition Monitoring of Bearing Faults Using the Stator Current and Shrinkage Methods

... classification in induction motors by using motor current and voltage, in IEEE International Joint. 384[r] ...

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A Teager-Kaiser Spectrum Technique for Bearing Fault Detection in Induction Motors

A Teager-Kaiser Spectrum Technique for Bearing Fault Detection in Induction Motors

... mechanical faults (e.g., broken rotor bar, shaft misalignment, bearing damage) and electrical faults ...grounding faults) [2]. Surveys indicate that bearing faults constitute up ...

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Analyzing and Detection of Rotor Faults in Squirrel Cage Induction Motor Drives Using MATLAB

Analyzing and Detection of Rotor Faults in Squirrel Cage Induction Motor Drives Using MATLAB

... different faults of induction ...rolling-element bearing damage in induction ...for bearing fault detection by correlating the relationship between vibration and current frequencies caused by ...

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Bearing Fault Detection in Induction Motor Using Time Domain Analysis

Bearing Fault Detection in Induction Motor Using Time Domain Analysis

... applications. Bearing play an important role in the reliability and performance of all motor ...and bearing assembly performance, it is difficult to imagine the progress of modern rotating machinery without ...

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Classifying Faults Locations in Cable Terminations and Investigation of the Faults Reasons

Classifying Faults Locations in Cable Terminations and Investigation of the Faults Reasons

... Cable termination faults happen because of different reasons and most of the investigations discuss importance of SG. Study of this paper is divided to multistage for taking trustable conclusions. According to ...

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DETECTION OF FAULTS IN INDUCTION MOTOR BY USING DWT

DETECTION OF FAULTS IN INDUCTION MOTOR BY USING DWT

... Detection of Faults of Induction Motor Here, the faults are detected depending upon the comparative study of energy bar graph. The energy bar graph can be drawn by using the algorithm given below. The ...

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Which faults are security faults?

Which faults are security faults?

... We applied the predictive model based on System A vulnerabilities to three different Cisco systems that we call Systems B, C, and D. The threshold for our analysis was kept at 35% as was done in the System A analysis. In ...

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Faults Analysis and Reliability Improvement of Pot Motor

Faults Analysis and Reliability Improvement of Pot Motor

... insert bearing can continue to operate under extremely high temperature and are capable of operating up to 1800 degree ...many bearing are1/3 the weight of a comparable steel ...insert bearing are ...

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Internal Fault Detection, Location, and Classification in Stator Winding of the Synchronous Generators Based on the Terminal Voltage Waveform

Internal Fault Detection, Location, and Classification in Stator Winding of the Synchronous Generators Based on the Terminal Voltage Waveform

... TTF or PGF will occur due to a damage to the insulation between the adjacent bars or between a bar and the stator core, respectively. The current through the faulty point to the ground in PGFs can be sensed by a ...

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Online Full Text

Online Full Text

... The simulations results have been obtained by using the FEM solution in order to investigate the effects of the broken rotor bars. FEM is able to compute the magnetic field distribution within the motor using geometry ...

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Fault classification and diagnostic system for UAV electrical networks based on hidden Markov models

Fault classification and diagnostic system for UAV electrical networks based on hidden Markov models

... ed faults and inaccurately calculated fault parameters were accredited to incipient fault conditions, with the majority of inaccuracies concerning the time of fault onset as opposed to the magnitude of drift ...

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OPTIMIZING MARCH ALGORITHM FOR TESTING EMBEDDED MEMORY: A CASE STUDY

OPTIMIZING MARCH ALGORITHM FOR TESTING EMBEDDED MEMORY: A CASE STUDY

... With every techno node and new product lines being attacked in semiconductor landscape, due to ever growing sizes and density, Embedded Memories are using more and more complex design structures resulting in the chances ...

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FAULT MODELING AND TEST GENERATION FOR QUANTUM DOT CELLULAR AUTOMATA DESIGNS

FAULT MODELING AND TEST GENERATION FOR QUANTUM DOT CELLULAR AUTOMATA DESIGNS

... etc. faults in CMOS technology the fault models and test vector generations were presented [6] for simple QCA networks consists AND, OR ...at faults in QCA ...‘1’ faults in QCA cells for polarization ...

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