Nonlinear Structural Dynamics

A special issue of Vibration (ISSN 2571-631X).

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 3016

Special Issue Editors


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Guest Editor
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Interests: mechanical vibrations; nonlinear dynamics; nonlinear structural dynamics; system identification
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Interests: linear and nonlinear system identification; nonlinear structural dynamics; moving loads
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nonlinearity has been known to be a frequent companion of engineering structures for a long time now. Yet, the research community’s interest in improving our awareness of nonlinear structural dynamics phenomena has gained more importance in recent decades. This can be linked to the emerging industrial need for efficient and lightweight designs in several engineering sectors, as well as the necessity of monitoring and characterizing pre-existent structures adopting nonlinear tools. Moreover, nonlinear dynamical phenomena continue to be an extremely intriguing research topic with many unsolved questions, opening a wide range of research opportunities.

This Special Issue of Vibration will gather relevant research contributions about the most significant and emerging topics in the field of nonlinear structural dynamics. Relevant topics include the following:

  • Numerical methods for nonlinear systems: harmonic balance, multiple time/space scales, iterative solvers, nonlinear modeling;
  • Experimental nonlinear dynamics: random and harmonic excitations, shaker-structure interaction, benchmark experiments;
  • Model validation and system identification: data-driven model updating, experimental validation of nonlinear models;
  • Nonlinear phenomena in structures and structural monitoring: bridges, cable transportation systems, overhead contact lines, turbines, vehicles, etc.;
  • Reduced-order modeling: nonlinear normal modes, nonlinear manifolds, sub-structuring techniques;
  • Nonlinear interactions: systems with internal resonances;
  • Nonlinear damping phenomena: contact interfaces, friction, fluid–structure interaction;
  • Large-amplitude vibrations: nonlinear stress-strain, large rotations;
  • Vibration control of nonlinear structures: nonlinear control theory, stability, linearization.

Dr. Dario Anastasio
Prof. Dr. Stefano Marchesiello
Guest Editors

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Keywords

  • nonlinear structural dynamics
  • nonlinear vibrations
  • experimental data
  • nonlinear modeling
  • nonlinear system identification
  • reduced-order models
  • nonlinear damping
  • vibration control

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Published Papers (1 paper)

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Research

14 pages, 2299 KiB  
Article
The Effect of Long Duration Earthquakes on the Overall Seismic Behavior of Steel Structures Designed According to Eurocode 8 Provisions
by Panagiota Katsimpini, Foteini Konstandakopoulou, George A. Papagiannopoulos, Nikos Pnevmatikos and George D. Hatzigeorgiou
Vibration 2020, 3(4), 464-477; https://doi.org/10.3390/vibration3040029 - 18 Nov 2020
Cited by 1 | Viewed by 2477
Abstract
Premature and simultaneous buckling of several steel braces in steel structures due to the prolonged duration of a seismic motion is one of the issues that must be addressed in the next version of Eurocode 8. In an effort to contribute towards the [...] Read more.
Premature and simultaneous buckling of several steel braces in steel structures due to the prolonged duration of a seismic motion is one of the issues that must be addressed in the next version of Eurocode 8. In an effort to contribute towards the improvement of the seismic design provisions of Eurocode 8, an evaluation of the overall behavior of some steel building-foundation systems under the action of long duration seismic motions is performed herein by means of nonlinear time-history seismic analyses, taking into account soil–structure interaction (SSI) effects. In particular, the maximum seismic response results—in terms of permanent interstorey drifts, overturning moments and base shears of the steel buildings as well as of the permanent settlement and tilting of their foundations—are computed. It is found that the seismic performance of steel buildings when subjected to long duration seismic motions is: (i) acceptable for the two and five-storey fixed base steel buildings and for the two-storey steel buildings with SSI effects included; (ii) unacceptable for the eight-storey fixed base steel buildings and for the five and eight-storey steel buildings with SSI effects included. In all cases of steel buildings with SSI effects included, the seismic performance of the mat foundation, as expressed by the computed values of residual settlement and tilting, is always acceptable. Full article
(This article belongs to the Special Issue Nonlinear Structural Dynamics)
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