Articulated heavy vehicle lateral dynamic analysis using an automated frequency response measuring technique
by Shenjin Zhu; Yuping He
International Journal of Vehicle Performance (IJVP), Vol. 2, No. 1, 2015

Abstract: This paper proposes the application of an automated frequency response measuring (AFRM) technique to the lateral dynamic analysis in the frequency-domain for articulated heavy vehicles (AHVs). The AFRM method can be used to automatically acquire the frequency response function of the rearward amplification (RWA) ratio, an important performance measure of the lateral stability of AHVs. A numerical simulation in the time-domain can only achieve the corresponding dynamic response at a specified frequency; to achieve dynamic responses over a frequency band, numerous simulations at various frequencies have to be conducted, and this is a tedious and time consuming process. The RWA measure is frequency-dependent, and the measure in the frequency-domain is of critical importance for the stability evaluation and design synthesis of AHVs. The feasibility and effectiveness of the proposed method is examined using numerical simulations of a tractor/semitrailer combination represented by a linear and a nonlinear AHV model.

Online publication date: Mon, 11-Jan-2016

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