Effect of road profile on heavy vehicles with air suspension Online publication date: Fri, 22-Dec-2006
by Oscar M. Gonzalez, Juan C. Jauregui, Alejandro Lozano, Gilberto Herrera
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 14, No. 1, 2007
Abstract: This study presents a seven degree of freedom, dynamic model for a two-axle vehicle which is used to analyse the influence of road profile on the vehicle's rollover capabilities and ride characteristics. Non-linear elements are included due to the air suspension featured in the vehicle. Road roughness is represented as a Power Spectral Density (PSD) function acting as an exciting force on the unsprung masses of the seven degree of freedom model, and solved numerically for both rollover simulation and lane change manoeuvre. Results indicate that road surface does have a significant impact on a vehicle's performance since it may prompt the vehicle to flip over below its rollover threshold.
Online publication date: Fri, 22-Dec-2006
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