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Mechanical Vibrations and Shocks: Random Vibration, vol. 3

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Mechanical Vibrations and Shocks: Random Vibration, vol. 3

Mechanical Vibrations and Shocks: Random Vibration, vol. 3
by Christian Lalanne
English | 2002 | ISBN: 1903996058 | 330 pages | PDF | 4.3 MB

The vast majority of vibrations encountered in the real environment are random. By their very nature, such vibrations are complicated. This volume describes the enabling process for simplification of the analysis required and the analysis of the signal in the frequency domain. Power spectrum density is defined, with precautions needed to be taken in its calculation described together with the processes (windowing, overlapping) needed to improve results. A further, complementary method, the analysis of statistical properties of the time signal, is described. This enables determination of the distribution law of the maxima of a random gaussian signal to be determined and simplification of calculation of fatigue damage to be made by the avoidance of the direct counting of peaks.

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