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Redefining the Process of Airframe Finite Element Model Development Using MSC / SuperModel

To develop, in less than one year, a MSC/NASTRAN 747SP finite element model from scratch to support the SOFIA (Stratospheric Observatory for Infrared Astronomy) program is an effort requiring significant planning. Model development is facilitated by dividing the airframe structure into submodels enabling parallel development of each submodel within separate MSC/PATRAN databases. Directing this effort requires configuration control and file management to maintain the overall pedigree of the model, which includes section properties, history files, drawings used and assumptions made. This paper discusses how MSC/SuperModel is being used to redefine airframe finite element modeling at Raytheon E-Systems Waco.