Results 11 to 20 of about 101,616 (312)
Buildings, 2022 High-damping rubber (HDR) material has been widely used in bearings for seismic-isolation devices in structures. Nevertheless, HDR has not yet been developed in dampers to reduce the response of structures to earthquake excitations by dissipating the ...
Tzyy Wooi Teh +2 more
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Nihon Kikai Gakkai ronbunshu, 2016 This study proposes a viscous-friction series damper. The series damper consists of an oil damper and a friction damper connected in series. Long period and long time seismic waves were recognized as new problems by the Great East Japan Earthquake.
Satoshi FUJITA +3 more
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Study on the Development of Passive MR Damper with Displacement-Dependent Damping Characteristics
Journal of Fluid Science and Technology, 2010 In this paper, we propose a new concept of a magneto-rheological (MR) fluid damper, which is a passive MR fluid damper. The passive MR damper has no electrical devices, such as a sensor, power supply and controller, and hence, it has an advantage in ...
Takahiro MURAKAMI +2 more
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Tension Estimation Method for Cable With Damper Using Natural Frequencies With Uncertain Modal Order
Frontiers in Built Environment, 2022 In the maintenance of cable structures, such as cable-stayed bridges, it is necessary to estimate the tension acting on the cables. In current Japanese practice, the cable tension is estimated from the cable’s natural frequency using vibration-based ...
Aiko Furukawa +2 more
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Physica A: Statistical Mechanics and its Applications, 2019 As an application of the classically decayable correlation in a quantum chaos system maintained over an extremely long time-scale (Matsui et al, Europhys.Lett. 113(2016),40008), we propose a minimal model of quantum damper composed of a quantum harmonic oscillator (HO) weakly interacting with a bounded quantum chaos system.
Matsui, Fumihiro +2 more
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APPLICATION OF MR DAMPERS TO VARIABLE DAMPERS
Doboku Gakkai Ronbunshu, 2004 ダンパーの減衰力を任意に変化させることができれば, 橋梁の地震応答を抑える上で有利であり, 構造物の応答に応じて特性を変化させることのできるバリアブルダンパーの利用が効果的であると考えられている. 本研究では, 電流で減衰力を制御可能なMRダンパーを用いたバリアブルダンパーの有効性を実験, 解析の両面から検討する. 小型MRダンパーの特性を明らかにすることを目的として繰り返し載荷実験を行った後, 模型橋の振動台加振実験を行い, 地震時のMRダンパー及び橋梁の挙動を調べた. また, バリアブルダンパーをモデル化し, 橋の地震応答を地震応答解析によってよく再現できることを示した.
Goh NAKAMURA +2 more
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Structural Mechanics of Engineering Constructions and Buildings, 2019 The aim of the work. The article aims to determine the most effective seismic protection devices, as well as their degree of reliability in different conditions.
Inomzhon U. Madzhidov +3 more
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Nihon Kikai Gakkai ronbunshu, 2021 In this paper, we report the effect of the installation angle of a separated dual chamber single rod type damper using elastomer particles on the damping force characteristics.
Atsushi TOYOUCHI +3 more
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Damping force switching type electromagnetic damper using relay and capacitor
Nihon Kikai Gakkai ronbunshu, 2022 In general, semiactive dampers have high performance of vibration control compared to passive dampers, but in order to adjust an optimized damping force for the damper, several condition of vibration systems, such kind of force, acceleration and ...
Taichi MATSUOKA, Taichi NAKAZAWA
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Journal of Sensor and Actuator Networks, 2020 Chassis system components such as dampers have a significant impact on vehicle stability, driving safety, and driving comfort. Therefore, monitoring and diagnosing the defects of these components is necessary. Currently, this task is based on the driver&#
Thomas Zehelein +2 more
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