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Published December 1987 | public
Journal Article Open

Identification of nonlinear vibrating structures: Part II -- Applications


A time-domain procedure for the identification of nonlinear vibrating structures, presented in a companion paper, is applied to a "calibration" problem which incorporates realistic test situations and nonlinear structural characteristics widely encountered in the applied mechanics field. The "data" set is analyzed to develop suitable, approximate nonlinear system representations. Subsequently, a "validation" test is conducted to demonstrate the range of validity of the method under discussion. It is shown that the procedure furnishes a convenient means for constructing reduced-order nonlinear nonparametric mathematical models of reasonably high fidelity in regard to reproducing the response of the test article under dynamic loads that differ from the identification test loads.

Additional Information

Contributed by the Applied Mechanics Division for publication in the JOURNAL OF APPLIED MECHANIC. Manuscript received by ASME Applied Mechanics Division, January 13, 1987; final revision June 23, 1987. This study was supported in part by a grant from the National Science Foundation and the National Institute of Health Biomedical Simulations Resource at the University of Southern California.


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