Results 191 to 200 of about 1,105 (220)

Hysteretic Dampers in Base Isolation: Random Approach

Journal of Structural Engineering, 1985
A method of random vibration analysis of base isolated structures with hysteretic dampers is employed. The hysteretic restoring force is modelled by a nonlinear differential equation. The equations of motion for shear type structures are linearized in closed form.
Michalakis C. Constantinou, Iradj G. Tadjbakhsh   +1 more
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Modelling the hysteretic characteristics of a magnetorheological fluid damper

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2003
A generalized model is proposed to characterize the biviscous hysteretic force characteristics of a magnetorheological (MR) fluid damper using symmetric and asymmetric sigmoid functions on the basis of a fundamental force generation mechanism, observed qualitative trends and measured data under a wide range of control and excitation conditions ...
En Rong Wang, Xiao Qing Ma, S Rakhela, C Y Su   +3 more
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Simultaneous optimal damper placement using oil, hysteretic and inertial mass dampers

Earthquakes and Structures, 2013
Oil, hysteretic and inertial mass dampers are representatives of passive dampers used for smart enhancement of seismic performance of building structures. Since oil dampers have a nonlinear relief mechanism and hysteretic dampers possess nonlinear restoring-force characteristics, several difficulties arise in the evaluation of buildings including such ...
Yu Murakami, Katsuya Noshi, Kohei Fujita, Masaaki Tsuji, Izuru Takewaki   +4 more
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Analysis of a semi-active MR-damper with hysteretic and asymmetric properties

Proceedings of the 2003 American Control Conference, 2003., 2004
A generalized model is proposed to characterize the hysteretic damping properties of a magneto-rheological (MR) fluid damper, which yield asymmetric force in compression and rebound. The proposed nonlinear damper model incorporating applied current, and magnitude and frequency of the response, is employed within a two-DOF "quarter-car" model to ...
Enrong Wang, Xiao Qing Ma, Subhash Rakheja, Chun-Yi Su   +3 more
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A design methodology for hysteretic dampers

2002
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002. ; Includes bibliographical references (p. 71-72). ; by Bora M. Tokyay. ; M.Eng.
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Fem simulations of a new hysteretic damper: The dissipative column

2016
A new replaceable hysteretic damper to better control seismic building damage, consisting of two adjacent steel vertical elements connected to each other with continuous Xshaped mild/low strength steel shear links, is investigated in this study. New Dampers, called Dissipative Columns (DC), provide additional stiffness and damping to a lateral system ...
CASTALDO, PAOLO, PALAZZO, Bruno, PERRI, FRANCESCO   +2 more
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Nonlinear Damping: From Viscous to Hysteretic Dampers

2017
This paper is dedicated to a brief discussion on the nonlinear damping. We present the particular results for linear and nonlinear viscous dampers, for fractional damper and for the hysteretic damper . As a main purpose we consider the mathematical model of damper with hysteretic properties on the basis of the Ishlinsky-Prandtl model.
Mikhail E. Semenov, Andrey M. Solovyov, Peter A. Meleshenko, José M. Balthazar   +3 more
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SEISMIC PERFORMANCE OF A STRUCTURE EQUIPPED WITH VISCOUS, HYSTERETIC AND VISCO-HYSTERETIC DAMPERS

This paper introduces the general concept of a new device called visco-hysteretic damper. This new system aims at incorporating the benefits that viscous and hysteric dampers bring individually to a structure. For that, the seismic response of a case-study 12-storey steel building subjected to earthquake ground motions typical of the soft soil of ...
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Buckling-restrained braces as hysteretic dampers

2021
Mamoru Iwata, Takashi Kato, akira wada
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Hysteretic performance of square rotational friction damper

Advances in Structural Engineering
The concept of square rotational friction damper is proposed in this paper. The hysteretic performance and influencing factors of the damper are comprehensively investigated through cyclic loading tests and numerical simulation. The energy dissipation performance and slip force model of the square rotational friction damper were experimentally tested ...
Lijuan Yan, Chunwei Zhang
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