Optimal design of single-degree-of-freedom vibro-impact system under harmonic base excitation

Optimal design of single-degree-of-freedom vibro-impact system under harmonic base excitation

Giuseppe Perna, Maurizio De Angelis, Ugo Andreaus

Abstract. Strong seismic excitations can induce considerable displacements in base-isolated structures. These may in turn cause damage to the isolation system or impacts against adjacent structures in the event of an insufficient seismic gap. A strategy of reducing displacements can be achieved through the interposition, between the isolated structure and adjacent structures, of deformable and dissipative devices, called bumpers. In this paper, the response of single-degree-of-freedom (SDOF) base-isolated systems subjected to sine excitations and whose displacements are limited by optimally designed bumpers are analyzed, the bumpers being designed according to an optimal design criterion.

Keywords
Vibro-Impact Systems, Dynamic Response Control, Bumper, Gap, Numerical Modeling, Harmonic Base Excitation

Published online 3/17/2022, 6 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Giuseppe Perna, Maurizio De Angelis, Ugo Andreaus, Optimal design of single-degree-of-freedom vibro-impact system under harmonic base excitation, Materials Research Proceedings, Vol. 26, pp 429-434, 2023

DOI: https://doi.org/10.21741/9781644902431-70

The article was published as article 70 of the book Theoretical and Applied Mechanics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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