Design of “S” type track carbon free car based on cam mechanism

Abstract

Reverse part model based on motion trajectory is a common method in mechanism design. Compared with the traditional calculation method, it is simple and practical, and can simulate the reconstruction of the trajectory. In this paper, S-type carbon-free car was taken as an example. Firstly, the motion trajectory of the ideal car path was given. UG software was used to obtain the curve characteristics, established a mathematical model, and took the curve into the model to obtain the data of cam coordinate points. Then the MATLAB software was used to draw the cam contour and analyzed the feasibility of cam operation. The vehicle trajectory simulation was realized in MATLAB environment. Finally, the reasonable cam contour coordinate point data was imported into UG software to establish a 3D model of the cam, and the car track was repeatedly optimized to get the optimal cam shape. The rationality and the accuracy of the model were verified by the carbon-free car made by the scheme, and the corresponding guidance was provided for the research of others.