Multi-Objective Optimization Design of Auxiliary Fixture for Carrying in Automobile Production Line

Abstract

This paper presents a new method to improve the structure of the auxiliary fixture for carrying in automobile production line, taking into account the problems that occur during its operation. The three-dimensional (3D) solid model of the auxiliary fixture for carrying is built with the software of CATIA to analyze the force and combined deformation of auxiliary fixture for carrying under different working conditions combining with the method of multi-objective optimization design. The complex multi-objective optimization is transformed into a single-objective optimization by carrying out the optimization analysis to the structure of auxiliary fixture for carrying under different working conditions combining with the method of multi-objective optimization design. The results show that the auxiliary fixture for carrying with high quality and precision is reduced by about 67.65 kg, and its whole rigidity, strength and local bending rigidity all meet the requirements, and the resources are reasonably utilized.