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FAULT DIAGNOSIS OF ALTERNATOR USING POWER SPECTRAL DENSITY

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Author(s): Mohammad Jafarpour Jalali | Saeid Farokhzad | Mohamad Reza Asadi Asad Abad

Journal: Journal of Current Research in Science
ISSN 2322-5009

Volume: 1;
Issue: 4;
Start page: 177;
Date: 2013;
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Keywords: Alternator | Power Spectral Density | Vibration Signals

ABSTRACT
Alternators are used in modern automobiles to provide the electrical power. The electrical power requirements in automobiles have been rising rapidly for many years and are expected to continue to rise. Thus the alternator is one of the critical components of an automobile, so it health monitoring has a great impact in provide the electrical power. Many vibration environments are not related to a specific driving frequency and may have input from multiple sources which may not be harmoniously related. In this research we have calculated RMS and PSD of alternator in different faults situations. We have calculated Grms and PSD for different faults. The results showed that with calculating PSD we could find some fault and diagnosis of alternator as soon as possible.

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