Modal Substructuring (CMS) and Modal Substructure Modification 1.0

This submission contains an implementation of the modal substructuring approach described in Chapter 9 of Ginsberg, d-deDUMechanical and Structural Vibrations,d-deDt Wiley, 2001. The well known Craig-Bampton component mode synthesis method is a special case of the approach implemented here. The routine d-de?ritzscombd-deOao can be used to predict the mode shapes, natural frequencies and damping ratios of an assembly of substructures from the modes of the subcomponents and the constraints that are to be enforced. For simpler problems where one wishes to add or remove rigid springs or masses from a structure, the routine d-de?ritzsmodd-deOao can be used.The methods implemented here were recently used in the following publication, where the d-deDUmodal constraintd-deDt method, implemented in d-de?mkmodalconstrd-deOao was described in detail.M. S. Allen, R. L. Mayes, and E. J. Bergman, "Experimental Modal Substructuring to Couple and Uncouple Substructures with Flexible Fixtures and Multi-point Connections," Journal of Sound and Vibration, 2010, doi:10.1016/j.jsv.2010.06.007

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	2001 The,  Add,  And The,  Approach,  Approach Implemented,  Are To,  Assembly,  Be Used,  Damping,  Doi Jjsv,  Enforced,  Implementation,  Multipoint,  Structural,  Uncouple,  Usedthe,  Usedthe Methods Implemented,  Vibration,  Vibration Doi Jjsv
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