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MSC.Nastran is a finite element structural analysis program supplied by the MacNeal-Schwendler
Corporation (MSC.Software Corporation, 2 MacArthur Place, Santa Ana, CA 92707 USA). A two-step
process takes this deformation data from the MSC.Nastran output to a CODE V interferogram file.
SigPoly is a freeware program from Sigmadyne, Inc. (803 West Avenue, Suite 311, Rochester, New
York 14611; http://sigmadyne.com) that fits surface deformation data to Zernike coefficients and writes
the results to a file. CVNAS is a stand-alone utility, supplied by ORA, that converts this file into CODE
V interferogram (.int) files, which can then be used directly in CODE V to analyze the system under the
loads modeled in MSC.Nastran. One interferogram file is created for each distinct combination of surface
and subcase. Since one MSC.Nastran file may have many surfaces and subcases, there could be many
files produced. As the conversion is done, a summary table describing the conversion is listed. |
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