Authors: M. Hubbard, D. Karnopp
Addresses: Associate Professor, Department of Mechanical Engineering, University of California, Davis, CA 95616, USA. ' Professor, Department of Mechanical Engineering, University of California, Davis, CA 95616, USA
Abstract: A vehicle model and sample simulation results are presented which are used to evaluate safety aspects of full-skid motion and the encountering of large bumps at speed. The model consists of a linearized heave, pitch and roll submodel coupled to nonlinear suspension, tyre-force and lateral dynamics submodels. A vector word bond graph provides an overview of the complete system. The submodels are also represented in bond graph form and are coupled using multiport transformers. Causality considerations facilitate equation formulation and the writing of computer subroutines. Results show the vehicle trajectory during skids and the tyre side-force or bump parameters which will cause the vehicle to overturn under dynamic conditions.
Keywords: bond graphs; multiport transformer; simulation; skid response; submodel; tyre force; tyre spring displacement; road bumps; vehicle trajectory; skids.
International Journal of Vehicle Design, 1983 Vol.4 No.5, pp.511 - 523
Published online: 25 May 2014 *Full-text access for editors Access for subscribers Purchase this article Comment on this article