Experimental monitoring of dynamic response is generally limited to few locations in the system. However, the analysis of structural performance and design of control systems would benefit from a complete knowledge of the system dynamic during service. A numerical approach is developed to numerically reconstruct the load and response of a complete structure from few reference points, based on a modal approach for projecting the response at few points on the domain of the structure. This methodology is particularly advantageous when full-field monitoring of a structure is not a possible solution. An assembly of two beams joined by a nonlinear torsional spring is analyzed in case of different load distributions acting on its span. The approach is shown to be robust and reliable.
Load and Response Identification for a Nonlinear Flexible Structure Subject to Harmonic Loads
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received January 24, 2013; final manuscript received August 23, 2013; published online October 9, 2013. Assoc. Editor: Johannes Gerstmayr.
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Chierichetti, M. (October 9, 2013). "Load and Response Identification for a Nonlinear Flexible Structure Subject to Harmonic Loads." ASME. J. Comput. Nonlinear Dynam. January 2014; 9(1): 011009. https://doi.org/10.1115/1.4025505
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