The critical excitation of a mechanical system, in the terminology of this paper, is one that drives the system to a larger response peak than any other in some class of allowed excitations. The critical excitation is of interest in questions related to the reliability and safety because the magnitude of the response peak is frequently an indicator of the survivability of the system. The problem of finding it has been solved for linear systems some time ago. This paper deals with the generalization of the problem to nonlinear systems. It is shown that its solution is in many ways analogous to its earlier counterpart.
The Critical Excitation of Nonlinear Systems
R. F. Drenick
Department of Systems Engineering, Polytechnic Institute of New York, Brooklyn, N. Y.
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Drenick, R. F. (June 1, 1977). "The Critical Excitation of Nonlinear Systems." ASME. J. Appl. Mech. June 1977; 44(2): 333–336. https://doi.org/10.1115/1.3424047
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