Year: 2017 Volume: 1 Issue: 4 Page: 207-211
MODELLING AND ANALYSIS OF A UPPER ARM SUSPENSION OF A VEHICLE
KAHOUL HAFİDA, BELLAOUAR AHMED, BELHOUR SAMİRA
This paper presents design of vehicle suspension upper arm using Ansys software based on finite element method, a simple three-dimensional model of upper arm was developed using Solid Works software then imported to Ansys, A static analysis simulation was considered. Aluminum alloys (A357-T6) are selected as a suspension arm materials and tetrahedral element (TET10) was used for the solid mesh. We consider horizontal force 2500 N is loaded with amplitude curve in X direction and vertical force 2500 N is loaded with amplitude curve in Z direction the two loads were applied at the end of the bushing that connected to the tire, the other two bushing that connected to the body of the car are constraint. With the chosen load case, the deformation consists essentially of a bending of the arm in the direction z, we see that the maximum displacement due to deformation is about 3.7 mm at node 3579, the state of the equivalent Von Mises stress in the work piece also reflects the deformation mode, more particularly, the stress related to the bending of the arm is the most important where there is a local accent constraints near a singularity. The maximum Von Mises equivalent stress calculated at elements is 202.63 MPa it is less than yield strength (275 MPa) of aluminum A357.
Anahtar Kelimeler (Keywords): Upper Suspension arm/Von Mises stress/Element finite method/Aluminum alloy