Time v Frequency Domain Analysis For Large Automotive Systems

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It has been recognised since the 1960’s that the frequency domain method for structural analysis offers superior qualitative information about structural response; But computational and technological issues have held back the implementation for fatigue calculation until now. Recent technological developments have now enabled the practical implementation of the frequency domain approach and this paper will demonstrate this, with particular reference to the technology limitations that have been overcome, the resultant performance advantages, and accuracy. These techniques are of relevance to all the large automotive OEM’s as well as aerospace T1 suppliers and example case studies from these companies will be included.
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