公开(公告)号：US20220129595A1

公开(公告)日：2022-04-28

申请号：US17291566

申请日：2020-06-28

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Shengfa WANG ,  Yu JIANG ,  Baojun LI ,  Yi WANG ,  Fengqi LI ,  Zhongxuan LUO

IPC: G06F30/10

Abstract: A design and optimization method of a porous structure for 3D heat dissipation based on triply periodic minimal surface (TPMS) belongs to the field of computer-aided design. Firstly, a porous structure is established through implicit function presentation of TPMS. Secondly, a heat dissipation problem is converted into a minimization problem of thermal compliance under given constraints according to a steady-state heat conduction equation. Then, parametric functions are directly computed through a global-local interpolation method. Finally, period optimization and wall-thickness optimization are conducted for a modeling problem to obtain an optimized porous shell structure with smooth period and wall-thickness change. The porous structure of the present invention greatly improves the heat dissipation performance, and efficiency and effectiveness of heat conduction. The porous structure designed by the present invention has the characteristics of smoothness, full connectivity, controllability and quasi-self-supporting. These characteristics ensure the applicability and the manufacturability of this structure.