Kinematic analysis of a McPherson suspension

Abstract

In this project it is tried to explain in an easy and clear way the different types of suspension systems. It will also be explained how to perform a kinematic analysis with ADAMS. The main objective of this final project is to study the behavior of McPherson suspension. For that, it is going to be used a computerized model and study its response. It is probably true to say that the average member of the vehicle owning public is unaware of the range of duties performed by a vehicle suspension. Certainly many would recognize the importance of the suspension for ride, but fewer would identify its importance in the handling of a vehicle. In reality a vehicle suspension is required to perform effectively under a range of operating conditions including high levels of braking and accelerating, cornering at speed and traversing rough terrain; manoeuvres which are required to be done in comfort and with safety. These requirements present the chassis engineer with some challenging problems and introduce some unavoidable design compromises. The aim here is to give a broad treatment of the main issues for the aspiring automotive designer. The text begins by identifying the functions of suspensions and goes on to introduce the student to the mechanics of suspension systems. Suspension kinematics is analyzed and suspension test results and characteristics are discussed. It concludes with a section outlining some of the developments in controllable suspensions.