摘要
根据《中国大学生方程式汽车大赛规则》(2014版)的要求,利用CATIA对大学生方程式赛车车架进行设计和建模;利用ANSYS对车架进行3种典型工况(弯曲、制动、转弯)有限元分析以及弯曲刚度和扭转刚度的计算,掌握车架的应力和变形情况;对车架进行改良设计,并对改进后的车架进行3种典型工况下的有限元分析和弯曲刚度、扭转刚度的计算以及模态计算。计算结果表明,车架的改进设计减轻了其质量,改进后车架的强度和刚度在允许范围内;该赛车发动机应尽量避开1200、1980、2520、2820、2850、3510r/min这6个转速,以免引起车架共振。
A FSAE car frame was designed and modeled by CATIA software according to Formula SAE of China：Chinese Rules（2014 Version）.The stress distribution and deformation of the car frame under the working conditions of bending,braking and cornering were analyzed based on ANSYS,and the bending and torsion stiffness were calculated.The stress,deformation,stiffness and modal parameters of optimized car frame under three working conditions were studied.The results show that the weight of the car frame after optimization can be reduced and the strength and stiffness of improved car frame are in the allowable range.The engine of FSAE car should work at the speed except 1200,1980,2520,2820,2850,3510r/min to avoid stimulating resonance of the car frame.
出处
《武汉科技大学学报》
CAS
北大核心
2015年第1期31-34,共4页
Journal of Wuhan University of Science and Technology
基金
国家自然科学基金资助项目(51105283)
