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Automated Generation of Electromagnetic Computer Aided Design (CAD) Package Computational Meshes

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 26430
Amount: $99,986.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
5301 Shawnee Road, Alexandria, VA, 22312
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew Perlik
 (703) 658-4000
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Although great strides have been taken to generate and render problem geometries using computer automated design packages, as well as advancements in the the development of computational electromagnetics codes to solve Maxwell's equations, the link between the two is still very weak. Practical geometries have complex geometric features, abrupt changes in electromagnetic constitutive parameters, and possibly attached discrete loads. Furthermore, Maxwell solvers have different basis functions, modeling capabilities, and modeling constraints that must be satisfied. Automated interfaces developed for other analyses such as thermal or structural modeling, are not well equipped to handle these issues. This activity will develop an automated maintainable expandable interface between BRL-CAD and four method of moments codes: Electromagnetic Surface Patch (ESP), Triangular Surface Patch (TSP/MoM) and two next generation method of moments codes, spatial decomposition (SD/MoM) and PARAMOM. BRL-CAD is an inexpensive high quality package produced and maintained by the Ballistic Research Laboratories. It is well documented, the source code is available, and a geometry interrogation toolkit is provided. The selected Maxwell solvers are available from universities or have been developed under government funding. An augmented EMCC benchmark problem set will serve as test cases. Anticipated Benefits/Potential Applications - Several government funded electromagnetics initiatives are underway at one Of WPAFB and the other NASA. An automated mesh generation capability will nicely complement these activities. Powerful electromagnetiC3 design codes are now becoming available on workstations and can be used in the private sector to design microwave components, to design consumer appliances, and to assess electromagnetic health risks. The interface described in this program could be sold commercially to SUIDIDort all of these activities.

* Information listed above is at the time of submission. *

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