Support volume constraint topological optimization method for additive manufacturing

• Main Authors: DONG YONGJIA, XIE GUANLIN, TONG JIANBIN, SHENG ZHONGQI
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a support volume constraint topological optimization method for additive manufacturing, and belongs to the technical field of structure optimization. According to the method, acalculation formula of the volume of the part supporting structure is constructed under a density-based topological optimization framework, the volume of the supporting structure is introduced into the topological optimization formula as a constraint condition, and then constraint control parameters are set to obtain a topological optimization result of the model. According to the method, the physical significance of the support volume constraint condition is clear, the mathematical expression form is simple, the derivation of sensitivity information is easy, and a mathematical programming algorithm can be directly adopted for solving. In addition, the support volume constraint is considered in the topological optimization, so that the support volume required by the additive manufacturingof the optimization resul