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Dynamic transient analysis of systems with material nonlinearity: a model order reduction approach
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  • Journal title : Smart Structures and Systems
  • Volume 18, Issue 1,  2016, pp.1-16
  • Publisher : Techno-Press
  • DOI : 10.12989/sss.2016.18.1.001
 Title & Authors
Dynamic transient analysis of systems with material nonlinearity: a model order reduction approach
Casciati, F.; Faravelli, L.;
 Abstract
Model Order Reduction (MOR) denotes the theory by which one tries to catch a model of order lower than that of the real model. This is conveniently pursued in view of the design of an efficient structural control scheme, just passive within this paper. When the nonlinear response of the reference structural system affects the nature of the reduced model, making it dependent on the visited subset of the input-output space, standard MOR techniques do not apply. The mathematical theory offers some specific alternatives, which however involve a degree of sophistication unjustified in the presence of a few localized nonlinearities. This paper suggests applying standard MOR to the linear parts of the structural system, the interface remaining the original unreduced nonlinear components. A case study focused on the effects of a helicopter land crash is used to exemplify the proposal.
 Keywords
helicopter;model order reduction;nonlinearity;soil structure interaction;vibration mitigation;
 Language
English
 Cited by
1.
Conceiving Meta-structures for Civil Engineering Applications, Procedia Engineering, 2017, 199, 1604  crossref(new windwow)
2.
Applications of noise barriers with a slanted flat-tip jagged cantilever for noise attenuation on a construction site, Journal of Vibration and Control, 2017, 107754631774777  crossref(new windwow)
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