Diagnostic of shock absorbers during road test with the use of vibration fft and cross-spectrum analysis
 
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1
Zakład Badań Zespołów, Pracownia Wibroakustyki, Instytut Badań i Rozwoju Motoryzacji BOSMAL Sp. z o.o.
 
2
Instytut Badań i Rozwoju Motoryzacji BOSMAL Sp. z o.o.
 
 
Submission date: 2016-05-23
 
 
Final revision date: 2016-11-21
 
 
Acceptance date: 2016-11-21
 
 
Publication date: 2017-03-23
 
 
Corresponding author
Bogusław Jakub Krężel   

Zakład Badań Zespołów, Pracownia Wibroakustyki, Instytut Badań i Rozwoju Motoryzacji BOSMAL Sp. z o.o., ul. Sarni Stok 93, 43-300 Bielsko-Biała, Polska
 
 
Diagnostyka 2017;18(1):79-86
 
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ABSTRACT
In this article an attempt to diagnose damage to the shock absorbers of a passenger car during road operation with the use of vibration response measurement has been described. Accelerometers were mounted on the body – sprung mass. Based on the recorded signals, FFT and Cross-Spectrum graphs were prepared. The test was performed for several variants shock absorber damage. The single-number index of vibration amplitude increase, in the range of resonance frequency, was calculated, based on spectrum analysis. The results are shown as graphs and tables, for different damage types. The realization of measurement and adopted method of damage diagnosis are described
eISSN:2449-5220
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