Results 11 to 20 of about 9,464,741 (253)
IOP Conference Series: Earth and Environment, 2021 Ice galloping is one of the disasters that have the greatest impact on the safe operation of transmission lines in winter. This article analyze the characteristics and prevention method of ice galloping of electric grid transmission lines based on finite
Zhou Jian, Li Li, Tao Feng, Jun Guo
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EnergiesThis 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
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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 ...
Masaru Matsumoto +5 more
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Optimal electromagnetic energy extraction from transverse galloping [PDF]
, 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 ...
Barrero Gil, Antonio +2 more
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Experimental study on the galloping characteristics of single ice-coated transmission lines under oblique flows [PDF]
Scientific Reports, 2023 AbstractGalloping of ice-coated transmission lines is occasionally observed under oblique wind directions. However, most current investigations on the galloping mechanisms are for flow perpendicular to the span of the transmission lines. In order to address this gap, this research studies the galloping characteristics of ice-coated transmission lines ...
Mingyang Gao +6 more
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Numerical Simulation of Galloping Characteristics of Multi-Span Iced Eight-Bundle Conductors Tower Line System [PDF]
Buildings, 2022 The galloping condition of an iced eight-bundle conductor tower line system, under different parameters, is studied by using a finite element model of a multi-span iced eight-bundle conductor tower line system. The galloping frequency, amplitude, traces of multi-span iced eight-bundle conductors under different wind velocities, span lengths, and ...
Bowen Tian +6 more
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Aerodynamic forcing characteristics of dry cable galloping at critical Reynolds numbers
European Journal of Mechanics - B/Fluids, 2014 AbstractThis article attempts to highlight characteristics of the aerodynamic forcing on a rigid circular cylinder experiencing dry galloping vibrations. Observations from a series of wind tunnel tests are studied comparatively with the literature on rain–wind cable vibrations and on flow past inclined lifting bodies such as missiles, for drawing ...
Nikolaos Nikitas, John H G Macdonald
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Study on Galloping Characteristics of Large-section Carbon Fiber Composite Core Conductor
IOP Conference Series: Materials Science and Engineering, 2020 Abstract This paper establishes the finite element galloping model of large-section carbon fiber composite core conductor, and selects three kinds of large-section conductors to analysis on galloping characteristics, i.e. carbon fiber composite core large-section conductor JLZ2X1/F2A-1660/95-492, 1,250mm2 large-section aluminum conductor
Xueping Zhan +3 more
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EVALUATION OF GALLOPING OF 1:2 RECTANGULAR CYLINDER BY ITS UNSTEADY PRESSURE CHARACTERISTICS
Doboku Gakkai Ronbunshu, 1984 The heaving aeroelastic responses of rectangular cylinders are well known as vortex-induced oscillation and galloping. But these responses are not always observed separately. The response of a 1:2 rectangular cylinder in higher winds above Ucr(=1/St), concerned in this paper, is this case. And it was considered as a “mixed-type” response.
Hitoshi Yamada, Toshio Miyata
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Nonlinear analysis and characteristics of inductive galloping energy harvesters
Communications in Nonlinear Science and Numerical Simulation, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huliang Dai +3 more
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