Extract Characteristic Matrices

 

A sample Nastran deck showing the changes to a SOL 103 for the truck-with-container to export the characteristic matrices is shown in Figure 18. (The full Nastran files are available as truck_wload_irke_tam_out.dat and truck_irke_tam_out.dat.) This deck uses standard Nastran cards to write out the candidate set TAM mass and stiffness matrix to the punch file in DMIG format. The punch files resulting from these two Nastran solutions are provided so the user can quickly navigate and experiment with the Genetic Algorithm.
 

SOL 103

CEND

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TITLE = TRUCK WITH CONTAINER CANDIDATE SET TAM

SUBTITLE = PUNCH MASS AND STIFFNESS MATRIX

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………………………Standard Case Control data ………………………

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BEGIN BULK

PARAM, EXTOUT, DMIGPCH

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………………………Standard parameters, model, and solution data ………………………

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$ IRKE ASET

INCLUDE 'truck_wload_union_irke.aset'

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ENDDATA

Figure 18. Sample Nastran deck showing method to export matrices to punch file for GA