ANALYSIS OF VEHICLE’S SUSPENSION'S DYNAMIC RESPONSES DURING TEST TRACK RIDES AND REAL EXPLOITATION

Zbyszko Klockiewicz; Grzegorz Ślaski

Zbyszko Klockiewicz Poznan University of Technology, Faculty of Machines and Transport
Grzegorz Ślaski Poznan University of Technology, Faculty of Machines and Transport

Keywords: suspension, dynamic responses, kinematic excitation

Abstract

The following paper presents a study of dynamic responses of a passenger vehicle in typical exploitation conditions. It describes the process of acquiring data from the test rides and their further analysis using statistical values using MatLab. The analysis focuses on accelerations of sprung and unsprung mass, suspension deflection and its speed, comparing the values achieved on different road surfaces, taking into account safety limits and suspension characteristic. The data acquired are presented as graphs of density of probability and cumulative empirical probability, as well as tables listing dynamic responses undergoing analysis. The results allow for estimation of expected dynamic responses of a vehicle, thus making the preparation of future experiments more thorough.

Keywords:
suspension, dynamic responses, kinematic excitation