Abstract
China FSAE race introduced formula racing gradually in the university campus in order to make FSAE racing have better ride comfort, handling and stability. Design and strength analysis of FSAE suspension were also proposed. Firstly, according to the whole layout of FSAE racing, the suspension mode was selected, both front and rear suspension were unequal push rod type double wishbone independent suspensions. Secondly, the main parameters and the orientation structure of the front and rear suspension were preliminarily designed. The wheels alignment parameters were selected with all kinds of stiffness, damping coefficient, followed by cross arm length calculation. According to the design parameters, suitable rim and shock absorber were chosen to determine the structure of the suspension’s main components . Thirdly, the front and rear suspension models were set up by the SolidWorks 3D software. Finally, the analysis of static stress on the main components of FSAE racing using the simulation module was performed to form the car suspension system so that it meets the design requirements of the FSAE regulations. This paper could provide references for the real vehicle development.
Highlights
FSAE racing is a sport with global influence
The design of the suspension system is an important part of the overall vehicle design, which determines the performance of the racing car
In order to avoid the cross arm bending, push rod was directly hinged on the steering knuckle
Summary
FSAE racing is a sport with global influence. It is a college student design competition known as the "academic F1". The design of the suspension system is an important part of the overall vehicle design, which determines the performance of the racing car. Brazil Sao Paulo University in 2005 designed FSAE racing suspension by using the push rod unequal wishbone for both front and rear suspensions, and a multi-body dynamics model was established to analyze the kinematics and dynamics. In 2008, Greece’s Aristotle University designed the first FSAE race car with front and rear suspension by placing an unequal double wishbone type. The question is to determine what will ensure the feasibility and reliability of the design of the suspension used in the racing car?
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