Design and Modeling of Hydraulic Crash Damper in a Racing Electric Vehicle

Abstract

Since racing vehicle has greater risk of injury and vehicle damage than any others urban vehicle, this paper presents the design, modeling and performance study of crash damper in a racing electric vehicle. Using lumped parameter model (LPM) as analytical approach, the development model of hydraulic crash damper is used to absorb or to dissipate the kinetic energy on frontal crash. The mathematical model between initial model and development model is derived to obtain responses of both vehicle and occupant. Plot 3D surface from numerical simulation is used to obtain optimum value of development model. The results in time response are also plotted to compare both initial model and development model. Development model also claimed that can reduce in vehicle deceleration, occupant deceleration and vehicle deformation in the range of 25% to 28.1% than initial model.