Analysis of Vibrations of Automobile Suspension System Using Full-car Model

The suspension system of an automobile helps to support the car body, engine and passengers, and at the same time absorbs shocks received from the ground while vehicle moves on rough roads. The study of vibrations of the suspension system has been a topic of interest to many researchers in the past. Most of them have studied using quarter car model and half car model. These models represent the original system in an approximate way. Very few people have been working on full car model. Most of the literature presents the final results. The equations of motion together with development is missing in the literature, may be because of confidential nature of the work. Hence, in this paper it is aimed at deriving the equations of motion and study the vibrations of the suspension system under different disturbing conditions. The responses obtained are in close agreement with results present in the literature.