Results 1 to 10 of about 259,965 (163)

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, Cai Mengqi, Cai Mengqi, Tian Bowen, Liang Junhao, Zhou Linshu, Wu Chuan, Huang Hanjie, Liu Jun   +8 more
doaj   +2 more sources

Calculation method of multi-span tension stringing in transmission line

IOP Conference Series: Materials Science and Engineering, 2017
The process of multi-span tension stringing in transmission line is analysed based on elastic catenary equation. From the tower condition of transmission line, the conservation equations of span spacing and elevation difference are built for conductor ...
Jian Qin, Jiancheng Wan, Liang Feng, Fei Peng, Liang Qiao   +4 more
openaire   +2 more sources

Wind-Resistant Capacity Modeling for Electric Transmission Line Towers Using Kriging Surrogates and Its Application to Structural Fragility

Applied Sciences, 2021
Wind loading on a transmission tower structure is jointly influenced by the wind field, structural parameters, and the geo-spatial configuration of the transmission line.
Yunzhu Cai, Jiawei Wan
doaj   +2 more sources

Coupling Vibration Characteristics and Wind-Induced Responses of Large-Span Transmission Lines Under Multi-Dimensional Wind

Buildings
Transmission lines, crucial for power and urban infrastructure, are vulnerable to wind damage; this paper addresses research gaps in tower-line systems under multi-dimensional wind loads and aerodynamic damping.
Wenping Xie, Zhenhua Li, Wenlong Du, Xing Fu   +3 more
doaj   +2 more sources

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

Energies
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, Meng Li, Shenglong Li, Yuanhao Wan, Yang Hai, Chunguang Li   +5 more
doaj   +2 more sources

Overhead electrical transmission line galloping. A full multi-span 3-DOF model, some applications and design recommendations

IEEE Transactions on Power Delivery, 1998
A full multi-span three-degree-of-freedom (3-DOF) iced power transmission line model is presented. This new model is applicable for describing the galloping phenomena of both single and bundle lines, for performing static and dynamic analysis, and predicting the galloping behavior of iced power transmission lines, as well as for performing checks ...
null Jianwei Wang, J.-L. Lilien
openaire   +2 more sources

Retrieval algorithm for the column CO₂ mixing ratio from pulsed multi-wavelength lidar measurements [PDF]

Atmospheric Measurement Techniques, 2021
The retrieval algorithm for CO2 column mixing ratio from measurements of a pulsed multi-wavelength integrated path differential absorption (IPDA) lidar is described.
X. Sun, J. B. Abshire, J. B. Abshire, A. Ramanathan, A. Ramanathan, S. R. Kawa, J. Mao, J. Mao   +7 more
doaj   +1 more source

A multi-purpose, multi-rotor drone system for long-range and high-altitude volcanic gas plume measurements [PDF]

Atmospheric Measurement Techniques, 2021
A multi-rotor drone has been adapted for studies of volcanic gas plumes. This adaptation includes improved capacity for high-altitude and long-range, real-time SO2 concentration monitoring, long-range manual control, remotely activated bag sampling and ...
B. Galle, S. Arellano, N. Bobrowski, N. Bobrowski, V. Conde, T. P. Fischer, G. Gerdes, A. Gutmann, T. Hoffmann, I. Itikarai, T. Krejci, E. J. Liu, E. J. Liu, K. Mulina, S. Nowicki, S. Nowicki, T. Richardson, J. Rüdiger, K. Wood, J. Xu   +19 more
doaj   +1 more source

Numerical Analysis on the Sub-Span Oscillation of Iced Eight-Bundle Conductors During Galloping

Frontiers in Energy Research, 2022
Under the excitement of wind loads, UHV transmission lines are subject to two types of vibration phenomena, namely, sub-span oscillation and galloping.
Liu Yu, Cai Mengqi, Cai Mengqi, Wang Qingyuan, Wang Qingyuan, Wang Qingyuan, Zhou Linshu, Xu Qian, Ding Shunli, Liu Jun, Huang Chunlin   +10 more
doaj   +1 more source

Dynamic Characteristic of Conductor After Ice-Shedding and Simulation Analysis of the Tension Insulator String

IEEE Access, 2022
Electric power fittings are the link between conductors and transmission towers, and it is essential to improve their ability to withstand damage. To obtain the actual load of electric power fittings and study the stress of each electric power fitting ...
Lv Zhongbin, Xiaohui Liu, Bo Zhang, Tao Yaguang, Fangyu Li, Li Qing, Bo Yan   +6 more
doaj   +1 more source