Topological optimization design method of single-material porous structure

• Main Authors: LI HANG, GAO LIANG, CAO WEIXIAN, TONG HAIFENG, LI HAO
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention belongs to the technical field related to topological optimization design of a single-material structure, and discloses a topological optimization design method of a single-material porous structure, which comprises the following steps of: (1) constructing the single-material porous structure, and further performing interpolation through an expansion coefficient matrix partitioning method to calculate an initial expansion coefficient; (2) calculating the continuously changing unit pseudo density, structure total volume and local pseudo density of each unit in the single-material porous structure, and solving the maximum value of the local pseudo density; (3) interpolating the elastic modulus of the single-material porous structure to obtain an equivalent unit elastic modulus; (4) solving to obtain a displacement field of the overall structure, and further calculating an objective function of the minimum flexibility topological optimization model of the single-material porous structure; (5), calc