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Kinematic simulation and numerical analysis of the suspension system of light wheeled vehicle

Różyło P.

Journal of KONES

2014

Vol. 21, No. 1

241--247

The paper presents the process of kinematic simulation and FEM numerical analysis of the suspension system of the light-wheeled vehicle. Fragment of the suspension system is a set of simple vibration damping mechanisms occurring in light-wheeled vehicles. The materials used for analysis is aluminum, steel and rubber characterized by properties hyperplastic. The suspension system has been subjected to the force generated from the substrate, resulting from the prevailing inequality terrain. Kinematic simulation made using CAD software enabled the mapping of the actual behaviour of the suspension with a simple steering mechanism, while passing at the characteristic curvilinear track. Numerical investigations have enabled the analysis of stress distribution in the structural elements while pointing out areas with the highest levels of stress reduced, designated by HMH hypothesis (Huber-Mises-Hencky). The FEM analysis used local and global density of the mesh through which highlighted the level of maximum stress concentration. Result of reduced stress distribution shown exactly on the complete form of the test model of a wheeled vehicle suspension. In the analysis of numerical models have been used elasto-plastic materials and hyperplastic available in the Abaqus. Calculations were carried out taking into account the issues of using geometrically nonlinear Newton-Raphson method.