Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science


DOI: 10.5937/jaes12-5445
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions. 
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Volume 12 article 295 pages: 217 - 226

Miroslav Demic 
Faculty of Engineering Sciences, Kragujevac, Serbia

Giovanni Belingardi 
Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, Italy

Djordje Diligenski 
Institute of nuclear sciences VINCA, Belgrade, Serbia

Shock absorbers are fundamental part of the vehicle suspension. Suspensions are needed to guar­antee vehicle handling and passenger riding comfort. For good handling and braking performance of the vehicle, the tire-road contact forces need to be as stable as possible. Each wheel should always remain in contact with the ground. Comfort means that vibrations, induced by road profile during riding, are of a minimal nuisance to the passengers. When designing a new vehicle, a lot of develop­ment effort is focused on the optimal choice of the suspension parameters, stiffness and damping. This paper presents some results of an experimental study conducted on three shock absorbers types that are in current production at Magneti-Marelli. Experimental tests were performed in con­ditions of random excitation. The aim of this study, based on the experimental data and by use of statistical methods, was to investigate which of the kinematic parameters of excitation has the major impact on damping force of shock absorber (displacement, velocity oracceleration).

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