This paper demonstrates how to calculate Craig-Bampton component mode synthesis matrices from measured frequency response functions. The procedure is based on a modified residual flexibility method, from which the Craig-Bampton CMS matrices are recovered, as presented in the companion paper, Part I (Morgan et al., 1998). A system of two coupled beams is analyzed using the experimentally-based method. The individual beams’ CMS matrices are calculated from measured frequency response functions. Then, the two beams are analytically coupled together using the test-derived matrices. Good agreement is obtained between the coupled system and the measured results.
Calculation of Component Mode Synthesis Matrices From Measured Frequency Response Functions, Part 2: Application
Morgan, J. A., Pierre, C., and Hulbert, G. M. (April 1, 1998). "Calculation of Component Mode Synthesis Matrices From Measured Frequency Response Functions, Part 2: Application." ASME. J. Vib. Acoust. April 1998; 120(2): 509–516. https://doi.org/10.1115/1.2893859
Download citation file: