Unified geometry access for analysis and design

Proceedings, 12th International Meshing Roundtable, Sandia National Laboratories, pp.21-31, Sept. 2003

MESHING
RESEARCH
CORNER

12th International Meshing Roundtable
September 14-17, 2003
Santa Fe, New Mexico, U.S.A.

Aerospace Computational Design Laboratory, Massachusetts Institute of Technology, U.S.A
haimes@mit.edu; ccrawfor@mit.edu

Abstract
This paper presents a comprehensive approach for CAD based geometry handling in support of single and multidisciplinary analysis and design. Unlike previous schemes, the model presented here allows for hands-on automated meshing, a requirement for design studies. Multidisciplinary analysis is handled through solid modeling constructs, using the geometry as a transfer media. For design applications, the engineer specifies the design space directly by the parameters of the CAD model. Key defining values in the model specified during part synthesis are later exposed to carry out design studies and optimization. Proper layout and definition of the CAD model facilitates design changes and use across all stages of design. A turbine blade model suitable for detailed aero/structural/thermal analysis is used to illustrate these concepts.

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