Time domain approach with S-N approach and local strain approach were used for fatigue life estimation. But these days, using PSD (Power Spectral Density) method is highlighted, because of short amount of time in measurement and analysis. Especially, PSD method is useful for analysis of fatigue failure which is caused by vibration damage, also FRF (Frequency Response Function) is useful for efficient prediction of fatigue life when the same product is employing different motor vehicle or test condition. In order to estimate fatigue life of compressor for air conditioning, time domain analysis and frequency domain analysis were performed and the results were compared. As a result, results of analysis in frequency domain and time domain were similar. With this, there is recognition of decreasing the period of measuring and analysis in PSD analysis. Moreover, in case of FRF pursued of a part, using FRF is applicable at fatigue life prediction in different testing condition. There was investigated an analysis method with curtailed analysis period by FRF.


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    Title :

    Automotive component fatigue life estimation by frequency domain approach


    Additional title:

    Abschätzung der Ermüdungslebensdauer von Fahrzeugbauteilen durch Frequenzbereichsanalyse


    Contributors:


    Publication date :

    2005


    Size :

    8 Seiten, 11 Bilder, 6 Tabellen, 5 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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