Results 11 to 20 of about 8,604 (268)
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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Frontiers in Built Environment, 2022 In the maintenance of cable structures, such as cable-stayed bridges, cable safety is assessed based on the cable tension. In Japan, the cable tension is generally estimated from the cable’s natural frequencies using the higher-order vibration method. In
Aiko Furukawa +2 more
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A Concentric Design of a Bypass Magnetorheological Fluid Damper with a Serpentine Flux Valve
Actuators, 2020 This work presents a new concentric design structure of a bypass magnetorheological (MR) damper with a serpentine flux valve type. In this design, the serpentine valve is installed not in the middle of the piston but on the bypass channel of the damper ...
Muhammad Hafiz Idris +4 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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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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Supression of mechanical oscillations in a nonlinear systems with restriction
Lietuvos Matematikos Rinkinys, 2023 The application of the dynamical dampers in the mechanical systems, when the sources of stimulation are impossible to abolish, is one of the ways to fight against the harmful vibrations.
Genovaitė Zaksienė
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Numerical Study of Horizontal Friction Dampers Made of Steel and Brake Pads in Chevron frame under Cyclic Loads [PDF]
پژوهشهای زیرساختهای عمرانی, 2022 Observations of damage to buildings in recent earthquakes indicate that some of the damage was in the area of welded joints. Due to the weakness in the joints, the idea of using a horizontal friction damper using brake pads in bracing openings ...
Saeed Kia Darbandsari +3 more
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Frontiers in Materials, 2019 To enhance the seismic resilience of coupled reinforced concrete shear walls, a new damper working in the replaceable coupling beam is proposed in present study. The new damper is a combination of metallic damper and viscoelastic (VE) damper.
Huanjun Jiang +5 more
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Shock and Vibration, 2014 The vibration control performance and its influencing factors of a tuned mass damper and a particle damper are examined by a single degree of freedom structure with such devices.
Zheng Lu, Dianchao Wang, Peizhen Li
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Energy Dissipation and Temperature Rise in Silicone Oil Torsional Dampers
MachinesAnalytical models for energy dissipation and temperature rise in a silicone oil torsional damper are developed to investigate its thermal characteristics. An experimental test platform is established to measure the surface temperature rise in the damper,
Wanli Zuo +3 more
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