| 摘要 |
PROBLEM TO BE SOLVED: To provide a deformation simulation method for a rheological object using real time adaptive tetrahedral meshes based on bisection/dual integration, capable of performing the deformation simulation of the rheological object rapidly and highly accurately. SOLUTION: Regarding an object as a simulation object, an adaptive grid with a tetrahedron as an element is generated. A mass point is disposed on each grid point. Three-element models are disposed on respective sides connecting mutually adjacent mass points for modeling by masses, viscous elements, and elastic elements. The variation quantity inside the object is defined. When external force is applied to the outside, a tetrahedron having large variation is divided into respective minimum tetrahedral elements using a bisectioning method for tetrahedron, and tetrahedrons having small variation are integrated. COPYRIGHT: (C)2008,JPO&INPIT
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