The application of a linear decimation procedure in the diagnostics of shock absorbers in passenger vehicles

The paper presents diagnostic methods for shock absorbers encased in passenger vehicles. This includes: the EUSAMA method commonly used in Vehicle Testing Stations, and multidimensional methods of vibroacoustic analysis of non-stationary signals. The presented method based on LDP (linear decimation procedure) is an innovative method for the diagnostics of shock absorbers. Obtain results confirm the justified use of the linear decimation procedure for non-stationary signals. LDP appart from the decrease in sampling speed, also transforms the signal, which enables the application of fast Fourier transform in signal description.

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Praca przedstawia metody badań amortyzatorów samochodów osobowych zabudowanych w pojeździe. Są to metody: EUSAMA stosowana powszechnie na Stacjach Kontroli Pojazdów i metody wielowymiarowe analiz wibroakustycznych sygnałów nieustalonych. Nowatorską w diagnostyce amortyzatorów jest zaprezentowana metoda oparta na procedurze liniowej decymacji (PLD).