Design Analysis of Monomer Shell Based on FSCC

This paper is based on the rules and requirements of Formula Student car competition in China to design a single shell frame, its purpose is to get a certain advantage in the increasingly fierce dynamic race competition. In the FSCC, the traditional steel pipe truss frame gradually loses its competitiveness in the competition, and it is difficult to achieve a significant breakthrough in lightweight. The monomer shell optimized based on CFRP design has many advantages, such as light weight, strong integrity, excellent stiffness, anti-corrosion, etc., which is the reason why most fleets choose to use monomer shell. The theoretical mass of the mono-shell frame designed in this paper is 28.4 kg, and the torsional stiffness is 3728.1 Nm/°, which is 11.56 times of the roll stiffness of the suspension, which can help the suspension quickly realize a more stable load transfer and distribution of the front and rear axles when it overturns and rolls. At the same time, this paper also optimizes the design condition according to the actual mode frequency to meet the design requirements of safety, lightweight and reliability.