Smart Structures and Systems

  • 제18권1호
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  • Pages.1-16
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  • 2016
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Dynamic transient analysis of systems with material nonlinearity: a model order reduction approach

  • Casciati, F. (Department of Civil Engineering and Architecture, University of Pavia) ;
  • Faravelli, L. (Department of Civil Engineering and Architecture, University of Pavia)
  • 투고 : 2015.09.26
  • 심사 : 2016.05.06
  • 발행 : 2016.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

참고문헌

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  3. Inelastic response analysis of bridges subjected to non-stationary seismic excitations by efficient MCS based on explicit time-domain method pp.1573-269X, 2018, https://doi.org/10.1007/s11071-018-4477-6
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