Results 11 to 20 of about 75,601 (267)

Tension Estimation Method for Cable With Damper Using Natural Frequencies and Two-Point Mode Shapes With Uncertain Modal Order

open access: yesFrontiers 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
doaj   +1 more source

Study of Damper Shape for Vibration Reduction Effect of Treadmill [PDF]

open access: yes한국정밀공학회지, 2021
As interest in the quality of life has recently increased, there is a growing interest and demand for exercise equipment, such as indoor treadmills or cycles, which can be used at home. However, the use of such indoor exercise equipment has caused social
Hyuk Dong Kwon   +2 more
doaj   +1 more source

Performance tests and microstructure‐based sigmoid model for a three‐coil magnetorheological damper

open access: yesStructural Control & Health Monitoring, 2021
Magnetorheological (MR) damper is one of the most promising smart devices for dissipating seismic energy and reducing structural vibrations. The MR dampers with multiple coils are widely adopted to enhance the output damping forces and seismic ...
Yang Yang   +4 more
semanticscholar   +1 more source

Seismic performance assessment of a novel ductile steel braced frame equipped with steel curved damper

open access: yesStructures, 2021
Steel braced frames are commonly used in steel structures to control and improve the seismic performance of the structures under severe lateral forces such as an earthquake.
Aria Ghabussi   +2 more
semanticscholar   +1 more source

Research on Damping Contribution Rate of Key Parameters of Valve-Controlled Damping Adjustable Damper

open access: yesFrontiers in Energy Research, 2022
Valve-controlled damping adjustable damper has the characteristics of simple structure and adjustable damping, and it has always been a hot research topic.
Fangwei Xie   +6 more
doaj   +1 more source

Tuned mass-damper-inerter (TMDI) for suppressing edgewise vibrations of wind turbine blades

open access: yesEngineering structures, 2020
This paper proposes the use of a tuned mass-damper-inerter (TMDI) for the mitigation of edgewise blade vibrations in wind turbines. The hollow nature of the wind turbine blades is utilized to install a TMDI at a location close to the tip of each blade. A
Zi-Li Zhang, B. Fitzgerald
semanticscholar   +1 more source

Seismic Performance Evaluation of Building-Damper System under Near-Fault Earthquake

open access: yesShock and Vibration, 2020
The building-damper system designed by a seismic code is usually considered to be able to withstand the attack of strong earthquakes. However, near-fault earthquakes, especially those with the forward-directivity effect, might cause early and unexpected ...
Xiaoli Wu   +5 more
doaj   +1 more source

Distribution of Force Applied to a Lateral Damper during EMU Operation [PDF]

open access: yes한국정밀공학회지
To develop a technology to diagnose the fault of dampers applied to railway vehicles and to set criteria, test runs were performed to measure damping force and displacement acting on a lateral damper during vehicle operation.
Hyun Moo Hur   +2 more
doaj   +1 more source

Variable Natural Frequency Damper for Minimizing Response of Offshore Wind Turbine: Principle Verification through Analysis of Controllable Natural Frequencies

open access: yesJournal of Marine Science and Engineering, 2022
Resonance causes extreme stress, acceleration of fatigue, and reduction in lifespan of offshore wind structures. The main factors that cause resonance are environmental loads such as wind and waves, and dynamic loads caused by rotor movement.
Young-Suk You   +2 more
doaj   +1 more source

Study on viscous-friction series damper for industrial facilities (Mechanism and basic performance of damper)

open access: yesNihon 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
doaj   +1 more source

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