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Frequency Domain Structural Identification
Frequency Domain Structural Identification Author:Richard Johnson This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A804213. The abstract provided by... more » the Pentagon follows: The Structural Synthesis Transformation is used to conduct structural system identification in the frequency domain. For spatially complete where each of the frequency response functions at every degree of freedom of each of the coordinates of the modeled system are available it shown that the theory exactly identifies all modeling errors. For spatially incomplete cases where the frequency response functions are available only at a proper subset of the degrees of freedom of the finite element model, single mode solutions are computed over intervals about modes of the experimental system using matrices and complex valued line integrals. Methods of forming multiple mode solutions from the single mode solutions are explored.« less