Dynamic Modelling and Simulation of an Auto Vehicle Steering Mechanism Considering its Elements as Flexible

Abstract:

The paper presents the dynamic analysis of a steering mechanism for a road vehicle, considering the deformability of some elements, such as the steering tie rods. Both the steering and suspension mechanisms were analysed form structural point of view. The kinematic scheme of the assembly was done, followed by a study of their parts and kinematic joints. Then, there was calculated the degree of mobility of the mechanism. The dynamic analysis was approached in case of a stationary vehicle. Considering the geometry of the real model, it was designed the 3D model of the mechanisms assembly. Respecting the positioning on the vehicle, the model was exported to the Adams View software, where the components were assembled, defining the kinematics joints. The values obtained by simulations are compared to those obtained by experimental means. Also, results can be used to optimize aspects of the mechanical system. Finite element analysis was performed to study the contact stress distribution of the rack and pinion gear, considering wheels-road contact and also the friction from the spherical and cylindrical joints of the mechanism. The rack and pinion gear was defined by coupling the rotational motion of the pinion with the translation of the rack.

• Periodical: Applied Mechanics and Materials (Volume 245)
• Pages: 150-155
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.245.150
• Online since: December 2012
• Authors: Gabriel Cătălin Marinescu, Nicolae Dumitru, Ionuţ Daniel Geonea
• Keywords: Dynamic, Flexibility, Mechanism, Simulation, Steering

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