Numerical Simulation of Galloping Characteristics of Multi-Span Iced Eight-Bundle Conductors
Frontiers in Energy Research, 2022 In this article, the numerical model of the multi-span iced eight-bundle conductor is established using the nonlinear finite element method, the galloping of the line under different parameters is simulated, and the tension in the galloping process is ...
Ding Shunli +8 more
doaj +4 more sources
A Critical Characteristic in the Transverse Galloping Pattern [PDF]
Applied Bionics and Biomechanics, 2015 Transverse gallop is a common gait used by a large number of quadrupeds. This paper employs the simplified dimensionless quadrupedal model to discuss the underlying mechanism of the transverse galloping pattern.
Xiaohui Wei +3 more
doaj +3 more sources
Piezoelectric Energy Harvester Response Statistics [PDF]
Micromachines, 2023 Safety and reliability are essential engineering concerns for energy-harvesting installations. In the case of the piezoelectric galloping energy harvester, there is a risk that excessive wake galloping may lead to instability, overload, and thus damage ...
Oleg Gaidai +3 more
doaj +2 more sources
Influence of aerodynamic characteristics of H beams on galloping stability [PDF]
IABSE Reports, 2014 This paper presents the experimental study developed on a prismatic beam with H section, sometimes used in bridges as suspenders, vertical bars or decks.
Gandia Agüera, Fernando +2 more
core +3 more sources
Galloping Stability and Aerodynamic Characteristic of Iced Transmission Line Based on 3-DOF [PDF]
Shock and Vibration, 2020 A new calculation method of critical wind speed based on three degrees of freedom (3-DOF) is proposed for galloping problem of iced transmission line.
Xiaohui Liu +4 more
doaj +2 more sources
Study on the Influence of Coil Arrangement on the Output Characteristics of Electromagnetic Galloping Energy Harvester. [PDF]
Micromachines (Basel), 2023 The arrangement of the induction coil influences the electromagnetic damping force and output characteristics of electromagnetic energy harvesters. Based on the aforementioned information, this paper presents a proposal for a multiple off-center coil electromagnetic galloping energy harvester (MEGEH). This study establishes both a theoretical model and
Xiong L +5 more
europepmc +4 more sources
Galloping Vibration Monitoring of Overhead Transmission Lines by Chirped FBG Array
Photonic 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 +2 more sources
Optimal electromagnetic energy extraction from transverse galloping [PDF]
Journal of Fluids and Structures, 2014 A fully coupled electro-fluid-elastic model for electromagnetic energy harvesting from Transverse Galloping is presented here. The model considers a one degree-of-freedom galloping oscillator where fluid forces are described resorting to quasi-steady ...
A Barrero-Gil, A Velázquez
exaly +4 more sources
Dry galloping characteristics and its mechanism of inclined/yawed cables [PDF]
Journal of Wind Engineering and Industrial Aerodynamics, 2010 Mechanism of dry galloping of inclined cable of cable-stayed bridges is described in relation to Karman vortex mitigation. Furthermore, the role of Scruton number Sc on reduced critical velocity Vrcr of the dry galloping is investigated for practical use basing on wind tunnel tests and field observations of dry galloping or pseudo-galloping, which is ...
Tomomi Yagi
exaly +2 more sources
Investigation on Stability and Galloping Characteristics of Iced Quad Bundle Conductor [PDF]
Journal of Applied Fluid Mechanics, 2021 The stability and galloping characteristics of iced quad bundle conductor are studied in this paper. Firstly, the aerodynamic coefficients of iced quad bundle conductor and single conductor under four different working conditions are obtained by wind tunnel test.
X. Liu, G. Min, C. Sun, M. Cai
openaire +3 more sources