Force analysis of automotive double wishbone suspension systems

Every car have shock absorber that connected between the tire and chassis of the vehicle. Shock absorber is a very important parts in any vehicles because it isolate structures and occupants from vibration and shocks generated from the surface of the road. A mechanical energy generated from the surface of the road are stored at the spring which are elastics. The suspension connects the spring and the arm of the suspension absorbs large number of force that occur during driving. Automotive suspension usually have two types which are MacPherson Suspension and Double Wishbone Suspension. The objective of this report are focus on the maximum stress, strain and displacement of suspension have in different types of force. For purpose of research study, Double Wishbone Suspension are used as a model for analysis. Double Wishbone Suspension have two arm which are Upper Arm and Lower Arm and connected with spring absorber. In road condition, there are four types of force experience by suspension which are Load Force, Cornering Force, Braking Force and Impact Force. The software used to analyze the suspension is SolidWorks. From SolidWorks, the model of the Double Wishbone Suspension are developed in exact shape of Double Wishbone Suspension. The suspension were analyze based on force input that calculated and the software simulates the results by using Finite Element Analysis. The results from simulation shows the colour pattern at suspension which shows the concentration of stress, strain and displacement. From the result, higher force produces larger concentration of stress, strain and displacement of the suspension