the Lower Arm Structure Optimization Design of Composite Based on Carbon Flow Distribution

• 1、Hunan University State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Changsha 410082

Abstract：Because of the special properties of composite materials, more and more applications in the automotive field, but it has not fully utilized the characteristics of composite materials. In this paper, based on the flow characteristics of composite materials, the fiber flow distribution, injection molding, flowability and so on are studied. And based on this law, the study found that the structure changes with the change in cross-sectional area of gamma, while the cross-sectional area through equivalent changes into an area of N section of s, by the end of the computation, forming a min m (ι, N) optimization theory. The method can effectively utilize the flow characteristics of cothe lower arm structure optimization design of composite materials based on carbon flow distributionmposite materials and guide the optimization of structures. On the basis of this method, analyze the structure of the injection molding under the lower arm, and the lower arm of the structure optimization, get more than 20% light aluminum structure and stiffness performance of optimized structure is quite, has guiding significance to practical engineering design and structure of the lightweight structure.

Keywords： Composite material fluidity structural optimization method lower arm