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1 2020

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The wavelet as the evaluation tool of vehicles’ seat suspension system

Glowinski Sebastian, Blazejewski Andrzej

Vibrations in Physical Systems

2020

Vol. 31, nr 2

art. no. 2020206

In this paper, an innovative active seat suspension system for vehicles is presented. This seat suspension prototype is built with a shear guidance mechanism, an air spring, a hydraulic shock absorber and end-stop buffers. The acceleration particular signals are measured by using Inertial Measurement Units (IMUs) placed on the seat and the human head. As the excitation, the horizontal vibrations are applied. As an alternative to the classical Fourier approach, the Wavelet Transfer Function (WTF) is introduced to describe the effectiveness of particular seat suspension. In both of the system cases, the human head reaction is investigated by using the Matlab package.