Investigation of a variable ride height suspension for an automobile

Abstract

This dissertation investigates a new way of varying the ride height for a passenger vehicle. It follows the design process from the first step of checking history, background and current development of suspension. Next it looks at building the concept of a new air spring which attempts to maintain a relatively constant pressure while increasing the area over which this pressure is acting. Material and manufacture process selection are conducted for the new concept and a process of vibration analysis for an automobile is undertaken. This investigation has been successful in developing a design for a new height adjustable suspension however the scope of this study did not allow for adequate testing to prove its viability and allow the design to be progressed into manufacture. Despite this lack of testing, the system in theory will provide for a more comfortable ride and a much more versatile vehicle. This new system of suspension will be able to perform in a wide variety of applications and environments without length setup or adjustment.