DESIGN OF A FORMULA SAE CHASSIS ACCORDING TO LATERAL LOAD TRANSFER DISTRIBUTION

Satyam Tripathi, Aman Tiwary, Shivam Rai

Abstract: This paper discusses the design of a Formula SAE racecar chassis for torsional stiffness. At first, the need of having a torsionally stiff chassis is discussed. Then an attempt is made to answer the question- how stiff is stiff enough? To answer this question, a mathematical model of a flexible chassis is developed and compared to an infinitely stiff chassis based on roll stiffness distribution and lateral load transfer distribution. Two methods are developed to reach the target torsional stiffness value with minimum weight possible, one, by changing the cross sectional area of the tubes and second, by reallocation of tubes. In the end specific structural members are predicted which have a high effect on torsional stiffness of chassis.

Keywords: LATERAL LOAD TRANSFER

DOI: https://doi.org/10.15623/ijret.2017.0607023