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Substructuring techniquesThe substructure function generator program is discussed. Input to this program consists of a definition of a finite element model of a substructure, and specification of the type and number of displacement functions to be generated. Primary output is a substructure data file containing the substructure mass and stiffness matrices expressing kinetic and potential energies as quadratic forms in coefficients of the displacement functions, etc. The substructure synthesis program forms complete system mass, stiffness, and damping matrices, computes system modes and frequencies, and executes transient response calculations. Input to this program consists of the array of substructure data files generated by the function generator program for individual substructures, and data cards defining the position and interconnection of the substructures, damping data, forcing function details, and function control parameters.
Document ID
19720004474
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Whetstone, W. D. (Lockheed Missiles and Space Co. Huntsville, AL, United States)
Jones, C. E. (Lockheed Missiles and Space Co. Huntsville, AL, United States)
Date Acquired
September 2, 2013
Publication Date
October 1, 1971
Subject Category
Computers
Report/Patent Number
LMSC/HREC-D162799-A
LMSC-TM-54/50-153
NASA-CR-121051
Accession Number
72N12123
Funding Number(s)
CONTRACT_GRANT: NAS8-30520
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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