MATHEMATICAL MODELLING AND SIMULATION OF FULL CAR SUSPENSION SYSTEM

The objective of this paper is to mathematical mode ling in relation with state space and eight degree freedom system of car seat and suspension system to determi ne set of parameters to maintain to achieve best co ndition of driver and occupants in vehicle. This index elimina tes the need for further subjective estimations and can be a useful parameter in various correlation analyses an d vibration comfort predictions. The vertical acceleration depends upon suspension p arameters such as sprung mass,unsprung mass,stiff ness of spring,damping coefficient and road profile. We ha ve consider the passive type,constraints comes fro m practical and comfort ability considerations such a s limit of vertical acceleration of passenger seat,tire displacement and suspension working space. This current study is an objective evaluation of ve hicle comfort characteristics based on mathematical modeling and simulation analysis. A variety type of road typ es will be selected to assess transmitted vibration s transmitted to the passengers. The displacements for respective direction are main account parameter Gausidian inp ut is most efficient. In future scope it will preferable to use optimization technique to evaluate paramete rs to optimum jerk to passenger with experimentation.

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