Vehicle Vibration and Passengers Comfort

To accelerate the level of passengers comfort, the author presents in this paper a heuristic approach to model the vehicle suspension parameters. The goal in this work is to design suspension parameters, in such a way that the passengers comfort is not decorated by forces induced by the road bump(s) or irregular rough surface. Here, the half car linear passive suspension model with passengers has been considered. Initially, model simulation over different roads is done. Later, by varying the mass of the passengers within a given range the variation and range of the vibration levels of the dynamical system have been analyzed. Then, the vibration level of the system is minimized using genetic algorithm and the suspension parameters are found out. This is done by keeping the masses of the passengers constant. With those parameters, again the vibration analysis is done with changing passenger’s masses in a suitable interval. The tabulated results and graphical representations show that the suspension parameters found can serve as an efficient value to enhance comfort.