Results 31 to 40 of about 208,722 (254)

Meta‐Virtuality: Strategies of Disembeddedness in Virtual Interiorities

open access: yesJournal of Interior Design, EarlyView., 2022
ABSTRACT To reclaim their seat in the rapidly growing market of virtual space, designers of the built environment can benefit from reevaluating theories that see the virtual as a mere extension/reflection of the physical. By claiming ontological autonomy from external worlds, the virtual is liberated from the hegemonic control of the physical.
Vahid Vahdat
wiley   +1 more source

Energy-Efficient Reconstruction Method for Transmission Lines Galloping With Conditional Generative Adversarial Network

open access: yesIEEE Access, 2020
Conductor galloping seriously threatens the safe operation of power systems and may lead to various damages such as wire fractures or tower collapses and large-scale grid breakdowns.
Decheng Wu   +3 more
doaj   +1 more source

Aerodynamic Characteristics Analysis of Iced Conductor Based on BP Neural Network

open access: yesBuildings, 2022
Major disasters and losses would be caused by the galloping of transmission lines. The basis for studying the galloping mechanism of transmission lines is to analyze the aerodynamic characteristics of iced conductors.
Junhao Liang   +6 more
doaj   +1 more source

Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area

open access: yesJournal of Applied Science and Engineering, 2021
To investigate the mechanical characteristics of catenary positive feeders under galloping state in gale areas, the aluminium cable steel reinforced (ACSR) LGJ-300/25 used in the catenary positive feeder of the LanzhouUrumqi high-speed railway is taken ...
Zhao Shanpeng   +4 more
doaj   +1 more source

NORMAL VIBRATIONS OF SAGGING CONDUCTORS OF OVERHEAD POWER LINES

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2022
The phenomenon of self-excitation of thermomechanical vibrations of current-carrying conductors, experimentally discovered by academician A.F. Ioffe, is of practical interest as a possible explanation of the phenomenon of galloping conductors of ...
Airat Valiullin   +2 more
doaj   +1 more source

Galloping Vibration Monitoring of Overhead Transmission Lines by Chirped FBG Array

open access: yesPhotonic Sensors, 2022
A distributed online fiber sensing system based on the phase-sensitive optical time domain reflectometer (Φ-OTDR) enhanced by the drawing tower fiber Bragg grating (FBG) array is presented and investigated experimentally for monitoring the galloping of ...
Qizhong Yan   +5 more
doaj   +1 more source

Transverse galloping of two-dimensional bodies having a rhombic cross-section [PDF]

open access: yes, 2014
Transverse galloping is a type of aeroelastic instability characterized by oscillations perpendicular to wind direction, large amplitude and low frequency, which appears in some elastic two-dimensional bluff bodies when they are subjected to an incident ...
Alonso Rodrigo, Gustavo   +3 more
core   +3 more sources

On-line Monitoring of Sag and Icing of Overhead Transmission Lines

open access: yesJournal of Harbin University of Science and Technology, 2023
In order to realize on-line icing and galloping monitoring of overhead transmission lines, an on-line monitoring method for overhead transmission lines based on phase-sensitive optical time domain reflectometry (Φ-OTDR) is proposed.
YANG Xiaolong   +4 more
doaj   +1 more source

Theoretical Analysis and Experimental Validation on Galloping of Iced Transmission Lines in a Moderating Airflow

open access: yesShock and Vibration, 2021
Galloping of an iced transmission line subjected to a moderating airflow has been analysed in this study, and a new form of galloping is discovered both theoretically and experimentally.
Bing Huo   +3 more
doaj   +1 more source

Galloping Performance of Transmission Line System Aeroelastic Model with Rime Through Wind-Tunnel Tests

open access: yesEnergies
This study presents an experimental investigation for the galloping performance of the transmission line system with rime under wind excitation. A full aeroelastic model wind-tunnel test is conducted to investigate the dynamic response of a two-bundled ...
Mingguan Zhao   +5 more
doaj   +1 more source

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