Analytical modeling of viscoelastic dampers for structural and vibration control

Park, S.W.

doi:10.1016/s0020-7683(01)00026-9

Cited by 207 publications

(108 citation statements)

References 71 publications

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“…In general, the horizontal and vertical shift factors must be used for the description of viscoelastic materials [2]. However, there are not enough experimental data concerning the vertical shift factor of the viscoelastic material used in dampers (compare [8,9,11,13,[22][23][24]). However, if the viscoelastic material can be classified as a thermorheologically simple material, then only the horizontal shift factor is required [23].…”

Section: Influence Of Temperature On Viscoelastic Damper Parametersmentioning

confidence: 99%

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Approximate method for temperature-dependent characteristics of structures with viscoelastic dampers

Lewandowski

Przychodzki

2018

Arch Appl Mech

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A method for analyzing the influence of temperature on the dynamic characteristics of structures with viscoelastic dampers is proposed in this paper. Dampers which are described by so-called fractional rheological models are considered. The temperature-frequency superposition principle is used to describe the influence of temperature on the dynamic characteristics. The concept of continuous dependence of damping on an artificially introduced parameter is adopted for solving, in an approximate way, the nonlinear eigenvalue problem from which dynamic characteristics are determined. The correctness and effectiveness of the method was verified by means of two examples.

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Section: Influence Of Temperature On Viscoelastic Damper Parametersmentioning

confidence: 99%

“…The most commonly used models of viscoelastic dampers are classic rheological models described by the Prony series, fractional derivative models or power-law representations [10,13,14]. In recent times, fractional derivative models have often been used because of the small number of parameters needed to be identified.…”

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confidence: 99%

Approximate method for temperature-dependent characteristics of structures with viscoelastic dampers

Lewandowski

Przychodzki

2018

Arch Appl Mech

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“…3 takes inspiration from classical viscous dampers in use for the seismic mitigation of tall buildings, see Ref. [10]. For design purposes, key parameters under well-defined loading conditions (e.g.…”

Section: Design Considerations and Prototypementioning

confidence: 99%

“…For design purposes, key parameters under well-defined loading conditions (e.g. operating frequency w and temperature T) are the damping ratio c d deriving from the rubber compound and the corresponding stiffness K d , where [10]:…”

Section: Design Considerations and Prototypementioning

confidence: 99%

Improving the dynamic performance of multi- storey buildings via protective glazing curtain walls

Bedon¹,

Amadio²

2018

Int. J. SAFE

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Glazing facades are widely used in building structures, due to a series of aesthetic, thermal, lightening aspects. From a structural point of view, under the action of exceptional loads as impacts, explosions, seismic events or hazards in general, the glazing envelopes often represent the critical component for multi-storey buildings, due to the typically brittle behaviour and limited tensile resistance of the glass panes, hence requiring specific, fail-safe design concepts. In this paper, the feasibility and potential of special mechanical connectors interposed at the interface between a given multi-storey primary building structure and the glazing facade are investigated via accurate finite-element numerical models, under various impact scenarios. As shown, the final result is an assembled structural system in which the facade can work as passive control system for the primary structure, in the form of a distributed tuned-mass damper (TMD).

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“…In this context, among the works in the frequency domain, one can mention Park (2001), and Costa and Ribeiro (2011). In these works, the Wiechert generalized model is used to perform an interconversion of the relaxation modulus function (written in terms of Prony series) from the time domain to the frequency domain, obtaining a complex modulus.…”

Section: Introductionmentioning

confidence: 99%

Property identification of viscoelastic solid materials in nomograms using optimization techniques

Sousa

Kanke

Pereira

et al. 2017

jtam

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Viscoelastic materials have been widely used as devices for vibration control in general. Frequently, dynamic properties of those materials are provided by manufacturers only in a graph form in the frequency domain. This is a recurring problem in industry and academia. Thereby, the goal of this work is to contribute to this important issue which is to obtain the properties of viscoelastic materials from nomograms supplied by the manufacturer. The methodology is based on the digitalization of the nomogram of the material and on the subsequent reading of a set of points from two curves in different temperatures. An optimization problem with simple restrictions is built having characteristic constants of the constitutive models as design variables. The problem is solved by applying a hybrid optimization technique. The results obtained are presented, and prove to be very promising.

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Analytical modeling of viscoelastic dampers for structural and vibration control

Cited by 207 publications

References 71 publications

Approximate method for temperature-dependent characteristics of structures with viscoelastic dampers

Approximate method for temperature-dependent characteristics of structures with viscoelastic dampers

Improving the dynamic performance of multi- storey buildings via protective glazing curtain walls

Property identification of viscoelastic solid materials in nomograms using optimization techniques

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