Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.1
3.8
Journals
Buildings
Special Issues
Dynamics Analysis of Structures with Viscoelastic Elements
share announcement

Dynamics Analysis of Structures with Viscoelastic Elements

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: closed (10 August 2023) | Viewed by 7695

Special Issue Editors

Prof. Dr. Roman Lewandowski

E-Mail Website
Guest Editor
Institute of Structural Engineering, Poznan University of Technology, Poznan, Poland
Interests: linear and nonlinear dynamics; dynamics analysis of structures; passive control systems with viscoelastic (VE) elements; parameter identification of VE materials; nonlinear eigenvalue problems
Dr. Zdzisław Pawlak

E-Mail Website
Guest Editor
Institute of Structural Engineering, Poznan University of Technology, Poznan, Poland
Interests: passive damping systems; viscoelastic dampers; structural dynamics; earthquake engineering; fractional derivatives

Special Issue Information

Dear Colleagues,

Modern structures are lighter, more economically designed, and made of structural materials with more efficient mechanical properties than constructions built before. Simultaneously, structures become more susceptible to dynamic load activities. In many instances, a reduction in structural vibrations is required in order to achieve the proper conditions of usability of the structures. The protection of engineering structures against the adverse effects of vibration is an important requirement already in their design process. To achieve this aim, control systems of different kinds (passive, semi-active, active and/or hybrid) are designed and mounted on the structures. One of the most effective and economical control systems is the passive control system, made of viscoelastic elements (for example, in the form of dampers or layers).

This Special Issue aims to provide a forum for presenting new achievements in the subject of broadly understood dynamics of the abovementioned type of structures. All types of papers, i.e., ones which present theoretical, experimental, or other new results, are welcome. Papers describing a new type of viscoelastic dampers and new types of viscoelastic materials and related to the dynamics of structures with these viscoelastic dampers and materials are expected. Review articles will also be published. The dynamics of all types of structures with viscoelastic elements (in particular, but not limited to, high-rise buildings, bridges, and reticulated space structures) is of interest. Moreover, papers related to the optimization of viscoelastic parameters and location of viscoelastic elements on structures will be accepted. 

Prof. Dr. Roman Lewandowski
Dr. Zdzisław Pawlak
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • viscoelastic (VE) structures and VE dampers
  • linear and nonlinear dynamics analysis of VE structures
  • dynamics properties of VE structures
  • new VE dampers and layers
  • experiments with VE structures
  • parameter identification of VE materials
  • optimization of structures with VE dampers

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

18 pages, 5785 KiB  
Article
Experimental Study on Seismic Behavior of Damaged Beam-Column Joints Retrofitted by Viscoelastic Steel-Enveloped Elements
by Xing-Huai Huang, Zhao-Dong Xu and Han-Jie Xiao
Buildings 2023, 13(3), 702; https://doi.org/10.3390/buildings13030702 - 07 Mar 2023
Viewed by 2462
Abstract
In order to improve the seismic performance of damaged reinforced concrete joints, a new retrofitting method using viscoelastic materials and steel plates is proposed. A reversal cyclic loading test was carried out on four T-shaped RC joints to investigate the reliability of this [...] Read more.
In order to improve the seismic performance of damaged reinforced concrete joints, a new retrofitting method using viscoelastic materials and steel plates is proposed. A reversal cyclic loading test was carried out on four T-shaped RC joints to investigate the reliability of this method. Seismic performance, including the strength, stiffness, ductility, and energy dissipation capacity of the original non-damaged joint and different repaired and retrofitted joints are then compared. The results show that this new method can significantly improve the strength of the retrofitted joints, and the joints can be loaded to a larger displacement value. After retrofitting, the energy dissipation of the joints increases, and the stiffness degradation decreases. The test results indicate that the retrofitting method is effective in repairing seismically damaged RC joints. Full article
(This article belongs to the Special Issue Dynamics Analysis of Structures with Viscoelastic Elements)
►▼ Show Figures

Figure 1

16 pages, 2230 KiB  
Article
Sliding Mode Control for Semi-Active Damping of Vibrations Using on/off Viscous Structural Nodes
by Mariusz Ostrowski, Aleksandra Jedlińska, Błażej Popławski, Bartlomiej Blachowski, Grzegorz Mikułowski, Dominik Pisarski and Łukasz Jankowski
Buildings 2023, 13(2), 348; https://doi.org/10.3390/buildings13020348 - 26 Jan 2023
Viewed by 1088
Abstract
Structural vibrations have adverse effects and can lead to catastrophic failures. Among various methods for mitigation of vibrations, the semi-active control approaches have the advantage of not requiring a large external power supply. In this paper, we propose and test a sliding mode [...] Read more.
Structural vibrations have adverse effects and can lead to catastrophic failures. Among various methods for mitigation of vibrations, the semi-active control approaches have the advantage of not requiring a large external power supply. In this paper, we propose and test a sliding mode control method for the semi-active mitigation of vibrations in frame structures. The control forces are generated in a purely dissipative manner by means of on/off type actuators that take the form of controllable structural nodes. These nodes are essentially lockable hinges, modeled as viscous dampers, which are capable of the on/off control of the transmission of bending moments between the adjacent beams. The control aim is formulated in terms of the displacement of a selected degree of freedom. A numerically effective model of such a node is developed, and the proposed control method is verified in a numerical experiment of a four-story shear structure subjected to repeated random seismic excitations. In terms of the root-mean-square displacement, the control reduced the response by 48.4–78.4% on average, depending on the number and placement of the applied actuators. The peak mean amplitude at the first mode of natural vibrations was reduced by as much as 70.6–96.5%. Such efficiency levels confirm that the proposed control method can effectively mitigate vibrations in frame structures. Full article
(This article belongs to the Special Issue Dynamics Analysis of Structures with Viscoelastic Elements)
►▼ Show Figures

Figure 1

25 pages, 5971 KiB  
Article
Effects of Different Frequency Sensitivity Models of a Viscoelastic Damper on Wind-Induced Response of High-Rise Buildings
by Daiki Sato, Ting-Wei Chang and Yinli Chen
Buildings 2022, 12(12), 2182; https://doi.org/10.3390/buildings12122182 - 09 Dec 2022
Cited by 2 | Viewed by 1101
Abstract
The fractional derivative (FD) model is one kind of numerical model of viscoelastic (VE) damper, which can describe the behavior of the frequency sensitivity of VE damper well with some empirical parameters. However, the FD model is difficult to apply to practice design [...] Read more.
The fractional derivative (FD) model is one kind of numerical model of viscoelastic (VE) damper, which can describe the behavior of the frequency sensitivity of VE damper well with some empirical parameters. However, the FD model is difficult to apply to practice design because of its complex calculation. Compared with the FD model, the integer derivative (ID) models are widely used as the VE damper equipped in the high-rise building. However, ID models lack consideration of frequency sensitivity, which significantly affects their accuracy. To consider frequency sensitivity in the ID model, this study attempted to use the 4-element and 6-element models of ID models to approximate the FD model, easily describing the VE characteristic of the damper. The wind forces of 500-year-return periods were employed to analyze the influence of the frequency sensitivity of the VE damper on wind-induced responses and energy dissipation. The results of this study showed that the 4-element and 6-element models not only matched frequency sensitivities well to the FD model in the low-frequency region of wind excitation but also had good agreements with the FD model in wind-induced responses and energy dissipation. Based on the findings in this study, the 4-element and 6-element models were recommended as numerical models for the wind-resistant design of high-rise buildings with VE dampers. It helps improve the wind-induced behavior simulation of VE dampers considering their frequency sensitivity in high accuracy without massive experimental cost. Full article
(This article belongs to the Special Issue Dynamics Analysis of Structures with Viscoelastic Elements)
►▼ Show Figures

Figure 1

30 pages, 2274 KiB  
Article
Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model
by Roman Lewandowski, Olga Kawa and Robert Studziński
Buildings 2022, 12(11), 1999; https://doi.org/10.3390/buildings12111999 - 16 Nov 2022
Cited by 1 | Viewed by 1085
Abstract
The new method for the determination of the dynamic characteristics of reticulated domes is proposed. Reticulated domes are built of composite rods. Each rod contains two layers made of elastic and viscoelastic materials, respectively. The viscoelastic material is modeled using the Zener model [...] Read more.
The new method for the determination of the dynamic characteristics of reticulated domes is proposed. Reticulated domes are built of composite rods. Each rod contains two layers made of elastic and viscoelastic materials, respectively. The viscoelastic material is modeled using the Zener model with fractional derivatives. A new formulation for the composite rod is proposed. The natural frequencies, the non-dimensional damping ratios and the modes of vibration are obtained as a solution to the nonlinear eigenvalue problem, which is solved using the continuation method. Moreover, the frequency response functions are determined in the usual way. The results of representative calculations are also presented and briefly discussed. Full article
(This article belongs to the Special Issue Dynamics Analysis of Structures with Viscoelastic Elements)
►▼ Show Figures

Figure 1

Review

Jump to: Research

42 pages, 2248 KiB  
Review
Dynamics of Structures, Frames, and Plates with Viscoelastic Dampers or Layers: A Literature Review
by Roman Lewandowski, Przemysław Litewka, Magdalena Łasecka-Plura and Zdzisław M. Pawlak
Buildings 2023, 13(9), 2223; https://doi.org/10.3390/buildings13092223 - 31 Aug 2023
Cited by 2 | Viewed by 1196
Abstract
The paper is devoted to a review of recent achievements in the field of dynamic analysis of structures and structural elements, such as beams and plates, with embedded viscoelastic (VE) dampers and/or layers. The general characteristics of VE materials, their rheological models, and [...] Read more.
The paper is devoted to a review of recent achievements in the field of dynamic analysis of structures and structural elements, such as beams and plates, with embedded viscoelastic (VE) dampers and/or layers. The general characteristics of VE materials, their rheological models, and methods of parameters identification are discussed. New formulations of dynamic problems for systems with VE elements are also reviewed. The methods of determination of dynamic characteristics, together with the methods of analysis of steady-state and transient vibrations of such systems, are also discussed. Both linear and geometrically non-linear vibrations are considered. The paper ends with a review of the methods of sensitivity and uncertainty analysis, and the methods of optimization, for structures with VE elements. Full article
(This article belongs to the Special Issue Dynamics Analysis of Structures with Viscoelastic Elements)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop