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Stiffness coupling application to modal synthesis program, users guideA FORTRAN IV computer program used to perform modal synthesis of structures by stiffness coupling, using the dynamic transformation method is described. The program was named SCAMP (Stiffness Coupling Approach Modal-Synthesis Program). The program begins with the entry of a substructure's physical mode shapes and eigenvalues or a substructure's mass and stiffness matrix. If the mass and stiffness matrices are entered, the eigen problem for the individual substructure is solved. Provisions are included for a maximum of 20 substructures which are coupled by stiffness matrix springs. Each substructure has a number degrees of freedom (DOF), except that for DOF greater than 100; vector sets having maximum row and column size of 100 were generated prior to entering SCAMP. The substructures are then coupled together via coupling springs, and the dynamic transformation is used to reduce the size of the eigen problem.
Document ID
19770018631
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Kuhar, E. J. (General Electric Co. Philadelphia, PA, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1976
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-145197
Accession Number
77N25575
Funding Number(s)
CONTRACT_GRANT: NAS1-145197
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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