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Hello, The usual way Nastran exports reduced matrices is by using the op2/op4/pch formats using extout method. Is it possible to export them as HDF5's?? MATLAB being my external interface to Nastran can readily read HDF5's and hence my question.

nlgyro
Hello,

The usual way Nastran exports reduced matrices is by using the op2/op4/pch formats using extout method. Is it possible to export them as HDF5's?? MATLAB being my external interface to Nastran can readily read HDF5's and hence my question.
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    You can get the stiffness and mass matrix in H5 file using below dmap commands in executive control section:
    MALTER 'MALTER.*KGG' $                                                                 
    MESSAGE //'HERE IS STIFFNESS MATRIX'/$                                                
    MATPRT KGG//$  
    MESSAGE //'HERE IS MASS MATRIX'/$                                                
    MATPRT MGG//$  
     
    CRDB_MTX KGG//'KGGX' $
    CRDB_MTX MGG//'MGG' $
     
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  • 0
    You can get the stiffness and mass matrix in H5 file using below dmap commands in executive control section:
    MALTER 'MALTER.*KGG' $                                                                 
    MESSAGE //'HERE IS STIFFNESS MATRIX'/$                                                
    MATPRT KGG//$  
    MESSAGE //'HERE IS MASS MATRIX'/$                                                
    MATPRT MGG//$  
     
    CRDB_MTX KGG//'KGGX' $
    CRDB_MTX MGG//'MGG' $
     
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