Results 21 to 30 of about 2,484,320 (270)

Estimation of stresses in atmospheric ice during aeolian vibration of power transmission lines [PDF]

open access: yes, 2010
Aeolian vibration in bare and iced cable was simulated using the theory of cable vibration. High frequency vibration creates stresses in the cable and consequently in the ice covering that cable, which may result in ice failure and eventually ice ...
Kermani, Majid   +5 more
core   +1 more source

Wind-induced vibration performance of early Chinese hall-style timber buildings

open access: yesJournal of Wood Science, 2021
Traditional Chinese timber buildings are lightweight, flexible, and quite vulnerable to wind. This paper aims to present a methodology for evaluating the wind-induced vibration performance of early Chinese hall-style timber buildings based on numerical ...
Yidan Han, Qing Chun, Hui Jin
doaj   +1 more source

Research on the Wind-induced Vibration Coefficient of Transmission Tower-line System

open access: yesPhysics Procedia, 2012
AbstractThe six different non-linear finite element model of the transmission tower-line system which have different spans and different height difference was established by the finite element analysis software, and wind velocity time series with resorting to weighted amplitude wave superposition (WAWS) was simulated.
Chunming, Wei, Bin, Ma, Tingting, Su
openaire   +1 more source

Wind-Tunnel Investigation of the Aerodynamic Performance of Surface-Modification Cables

open access: yesEngineering, 2017
The wind-induced vibration of stay cables of cable-stayed bridges, which includes rain-wind-induced vibration (RWIV) and dry galloping (DG), has been studied for a considerable amount of time.
Hiroshi Katsuchi   +3 more
doaj   +1 more source

Vibration Analysis for Fault Detection of Wind Turbine: New methodology of supervised machine learning techniques

open access: yes, 2022
[EN] The implementation of supervised machine learning techniques classifiers is changing wind turbine maintenance. This automatic and autonomous learning methodology allows one to predict, detect, and anticipate the degeneration of any electrical and ...
Vives-Fuster, Javier, Javier Vives
core   +1 more source

Vibration Control of Steel Wind Turbine Tower Using a Novel Tuned Mass Damper Refitted via Inner Platform

open access: yesShock and Vibration, 2023
Steel large-megawatts wind turbines have the light-damping and long-period properties, resulting in the adverse vibrations under the wind loads. In this paper, a novel tuned mass damper refitted via inner platform (IP-TMD) is proposed to control the ...
Zhenbo Lei   +5 more
doaj   +1 more source

Experimental Investigation of Bladeless Power Generator from Wind-induced Vibration

open access: yesInternational Journal of Renewable Energy Development, 2022
The power harvester unit from flow-induced vibration (FIV) was designed to harness energy from low flow velocity based on the magnetostrictive effect on the galfenol (Fe – Ga alloy) strip induced by the oscillating bluff body.
La Ode Ahmad Barata   +4 more
doaj   +1 more source

Output Power Control and Load Mitigation of a Horizontal Axis Wind Turbine with a Fully Coupled Aeroelastic Model: Novel Sliding Mode Perspective

open access: yesMathematics, 2022
The power control of horizontal axis wind turbines can affect significantly the vibration loads and fatigue life of the tower and the blades. In this paper, we both consider the power control and vibration load mitigation of the tower fore-aft vibration.
Hongfu Zhang   +3 more
doaj   +1 more source

Large-Eddy Simulation on Wind-Induced Responses and Wind Vibration Coefficients of Flexible Photovoltaic Arrays

open access: yesTaiyuan Ligong Daxue xuebao
【Purposes】Flexible photovoltaic (PV) supports are wind-sensitive, yet research on their wind-induced vibrations and wind vibration coefficients remains insufficient.【Methods】 In this study, a three-row, single-span flexible PV array was investigated by ...
XIE Xiaonan, QIU Ye, WANG Fei, WEI Xin
doaj   +1 more source

Discussion on the Value of Wind-induced Vibration Coefficient of Independent Steel Tube Lightning Rod Structure Design

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
This study compared the reliability of the ISTLRs (independent steel tube lightning rod) whose structure was designed using WIVC (wind-induced vibration coefficient) in DL/T 5457-2012, GB50009-2012 and AR method. Based on the assembly diagram of the lightning rod in the lightning rod replacement project in a 220kV substation, the finite element model ...
Zhenxing Huang, Mei Zhou
openaire   +1 more source

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