Multi-Objective Optimal Design Roller of Y-Type Mill Using Ga Combined with FEM

Abstract

Y-Type rolling mill with three roller is a new kind of wire mill. Because of its unique advantage, It is very important to optimize structure. Roller is important part of the rolling mill, whose size effects the strength, stiffness, as well as the rolling piece quality and service life of the rolling mill. Therefore, It is important to optimize the roller structure dimension of Y-type mill.A new structure optimizing method is set up combined the modified genetic algorithms with finite element method.This method can solve multi-objective problems with more complex constraints in the engineering. Compared with the zero order method and first order method companied with ANSYS, the result of this optimizing method is better. This method can solve multi-objective problems with more complex constraints in the engineering, providing a new and effective means for the engineering problems.

Optimization design of a novel X-type six-high rolling mill based on maximum roll system stiffness

“…Considering the asymmetric structure of the rolling mill system, Huang [19] established a chatter model by coupling a rolling process model and structure model to describe the asymmetric vibration characteristics, and found that the influence of the asymmetric structure parameters on the stability and critical conditions is noteworthy. In [20], Ma et al established a structural optimization method for a new Y-type rolling mill, which can solve the multiobjective problem of more complex constraints in engineering.…”