Shape optimization analysis device, shape optimization analysis method, shape optimization analysis program

摘要

PROBLEM TO BE SOLVED: To make it converge in a desired final configuration in the optimization analysis of a design area that connects a plurality of connecting target members without being limited in the type of the connecting target members.SOLUTION: Cracks 24A of thickness zero are made to exist virtually in a finite element E applying a different node number being impossible of connection in a finite element E positioned in a boundary between a design area 24 and a non-design area. The cracks 24A of virtual thickness zero are made to exist virtually, and the topological optimization calculation is executed while a connectable area of a pipe 10 is intermittent. In the topological optimization calculation, a numeric value in a range of 0 to 1 is finally determined as virtual density, and among early design areas 24, the finite element of the virtual density smaller than the restriction value of the virtual density is, so-called, trimmed. Image processing is executed based on the identification code of the finite element remained, and an image having a shape visually recognizable is generated and displayed.SELECTED DRAWING: Figure 9