Results 21 to 30 of about 3,581 (241)

Experimental Investigation of Bladeless Power Generator from Wind-induced Vibration

International 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, Kiwata Takahiro, Toshiyuki Ueno, Samhuddin Samhuddin, La Hasanudin   +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

Mathematics, 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, Jiahao Wen, Farshad Golnary, Lei Zhou   +3 more
doaj   +1 more source

Wind-Induced Vibration of UHV Wing-Expanded Transmission Lines with Different Coherence Functions

Applied Sciences
With the continuous growth of electricity demand, the structural safety of transmission towers under wind loads has become crucial. The wind-resistant design of transmission towers is mainly analyzed through the wind-induced response and wind vibration ...
Wenwu Zhou, Qian Gao, Lei Yang, Xueming Wang, Qiongfei Du, Qing Sun   +5 more
doaj   +1 more source

Study on the Effects of Wind Direction on the Characteristics of Vortex-Induced Vibration for a Square Cylinder

Buildings
Due to its complex mechanism of action, the wind-resistant design of square cross-section structures against vortex-induced vibration (VIV) still presents significant challenges.
Yurong Gu, Junou Xing, Xiaobin Zhang, Fei Wang, Qiaochu Zhao, Wenyong Ma   +5 more
doaj   +1 more source

Analysis of wind-induced vibration effect parameters in flexible cable-supported photovoltaic systems: A case study on ground anchor with steel cables

Case Studies in Construction Materials
The pre-stressed flexible cable-supported photovoltaic (PV) systems (FCSPSs) are gradually becoming the preferred PV structure for large-span and mountain photovoltaic power plants.
Yan Fei Zhu, Ying Huang, Chuanzhao Xu, Bin Xiao, Chang Hong Chen, Yao Yao   +5 more
doaj   +1 more source

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

IOP 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

A 2D numerical study on collision coefficient of single conductor under direct current electric field

IET Generation, Transmission & Distribution, 2023
In early spring or winter, supercooled raindrops impact on transmission lines and accumulate ice on its surface frequently, which may induce galloping vibration occurs.
Zhou Chao, Sun Jianfeng
doaj   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen, Ceren Tozlu, Tina Roostaei, Fatoumata Diallo, Kaho Onomichi, Jiyeon Son, Zongqi Xia, Philip L. De Jager   +7 more
wiley   +1 more source

Numerical Analysis of Influence of Blade Icing on Dynamic Response of Integrated Wind Turbine Structure

Shanghai Jiaotong Daxue xuebao, 2022
Based on the integrated jacket-support offshore wind turbine model of the National Renewable Energy Laboratory (NREL), the computational fluid dynamics (CFD) method is coupled with the wind turbine integrated analysis method to study the blade icing ...
CHUANG Zhenju, LI Chunzheng, LIU Shewen
doaj   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source