Finite Element Analysis of Anti-Roll Bar to Optimize the Stiffness of the Anti-Roll Bar and the Body Roll

The objective of this paper is to analyze the main geometric parameters which affecting the stiffness of anti-roll bar. Further these parameters are also affecting the body roll angle. By the optimization of these geometric parameters we can able to increase the stiffness of bar and which will help to reduce the body roll angle. To calculate the stiffness of anti-roll bar Finite Element software ANSYS is used. The deflection for the change in internal angle, arm length, moment of inertia, distance between bushes found by static analysis. To calculate the body roll angle equation used from the literature survey, however they haven't taken all the suspension characteristics in the calculation of moment caused by the suspended and non-suspended masses. The equilibrium condition is considered between the moments of the force acting on the suspended and non-suspended masses and moments of reaction of the springs and anti-roll bar used in suspensions. The comparison of different anti-roll bar is based on the basis of stiffness per weight. The anti-roll bar which having more ratio of stiffness per weight can be used in the vehicle. As it will improve the stiffness of bar with small increase in weight, which will result in the improving roll stability of the vehicle.