System and method of direct mesh manipulation

Details System and method of direct mesh manipulation System and method of direct mesh manipulation

2008-01-29

2008-01-29

Nguyen, Kimbinh T. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S419000, C703S008000, C700S098000, C700S182000, C715S964000

Reexamination Certificate

active

07324103

ABSTRACT:
A system and method for computer-aided engineering analysis using direct mesh manipulation of a mesh model is provided. The system includes a computer system having a memory, a processor, a user input device and a display device. The method includes the steps of selecting a geometric model in a computer-aided design (CAD) format, converting the CAD model into a mesh model and evaluating the mesh model using a computer-aided engineering (CAE) analysis. The method also includes the steps of modifying a surface of the mesh model by varying a predetermined parameter using direct surface manipulation (DSM), updating the mesh model and using the updated mesh model in further CAE analysis. Three techniques are provided for modifying a surface feature, including using a Dirichlet parameter distribution to determine the displacement of the surface feature; modeling the surface feature as an elastic sheet to determine deformation; and enclosing the feature within a lattice structure and using lattice deformation to determine surface deformation.

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