基于拓扑优化技术的飞机蒙皮拉形模轻量化设计

he purpose of this paper is to use the technique of topology optimization to solve the light-weight design problem of large aircraft skin stretch-forming die. The platform of ABAQUS is firstly used for numerical simulation of skin stretch-forming. And the data of load conditions are obtained. The topology optimization is carried out accordingly with the material properties and the boundary conditions properly defined. Referring to the obtained topology design, the optimal structure is reconstructed and then evaluated by the numerical simulation of stretch-forming. A typical stretch-forming die is designed in this paper. Compared with the traditional design, the topology design can improve the stiffness and strength of the forming die significantly.