关键词: 方程式赛车；立柱总成；性能分析；有限元分析

Abstract: The knuckle is the key connection between the suspension system, steering system and wheels in formula student cars, and its performance determines the handling stability, lightness and safety of the car. In order to better make the knuckles assembly meet the high-intensity use conditions of formula racing, first the force analysis and structural design of the column assembly are carried out, a three-dimensional model of the knuckle assembly is established, and then the knuckles assembly is analyzed by finite element when braking and high-speed extreme cornering. The analysis results show that the stress distribution and deformation displacement of the knuckles assembly meet the functional requirements of formula cars.

Key words: Formula racing car; Knuckles assembly; Performance analysis; Finite elements analysis