Results 11 to 20 of about 69 (65)

A parametric study of nonlinear seismic response analysis of transmission line structures. [PDF]

ScientificWorldJournal, 2014
A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project.
Tian L, Wang Y, Yi Z, Qian H.
europepmc   +2 more sources

Failure Mode Analysis and Maintenance of Railway Overhead Line Rigid Stainless Steel Droppers and Multi‐Strand Copper Jumpers

IET Electrical Systems in Transportation, Volume 2023, Issue 1, 2023., 2023
Droppers and jumpers are important components of railway overhead line electrification. Their effective maintenance is critical for the railway’s safe and reliable operation; the consequences of their failure can be disproportionally serious. This paper systematically analyses the components’ failure by applying the method of failure modes and effects ...
Jingyu Du, Jian-Ping Li, George Chaplin, Andrew Gardiner, Fun-Yim Hu, I Safak Bayram   +5 more
wiley   +1 more source

Nonlinear Buckling Analysis and Optimization Design of the Y‐Type Composite Insulator String

Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
Under the action of extreme wind load, the overhead transmission line will lead to the fracture of the traditional V‐type insulator string, which greatly affects the safety of the power system. Compared with the V‐type insulator string, the Y‐type insulator string has better stability under the wind load.
Hua Bao, Lingzhi Xia, Shengcong Chai, Yang Cheng, Songyuan Cao, Zhiwen Lan, Krishanu Roy   +6 more
wiley   +1 more source

Dynamic Windage Yaw Angle and Dynamic Wind Load Factor of a Suspension Insulator String

Shock and Vibration, Volume 2022, Issue 1, 2022., 2022
A simplified calculation method is proposed for determining the peak dynamic windage yaw angle φ∧ of electricity transmission line (TL) tower suspension insulator strings (SISs). According to the rigid‐body rule, the geometric stiffness matrix in the calculation of the windage yaw angle (φ) of SISs is dominated by the average wind loads, while the ...
Shuang Zhao, Jiahao Yue, Eric Savory, Zhitao Yan, Jiahao Chen, Bin Zhang, Liuliu Peng, Denis Benasciutti   +7 more
wiley   +1 more source

Development of steady arm damper for electrified railway overhead contact line with double pantographs based on numerical and experimental analysis

IET Electrical Systems in Transportation, Volume 11, Issue 3, Page 269-277, September 2021., 2021
Abstract To improve the carrying capacity, double pantographs are normally used to collect the electric current from the catenary. The mechanical wave excited by the leading pantograph affects the contact of the trailing pantograph and the contact wire, which usually deteriorates the current collection quality.
Wenping Chu, Yang Song, Fuchuan Duan, Zhigang Liu   +3 more
wiley   +1 more source

Walking Characteristics of Dual‐Arm Inspection Robot with Flexible‐Cable

Journal of Robotics, Volume 2021, Issue 1, 2021., 2021
The overhead transmission line has a catenary shape, which has great influence on the dynamic characteristics of an inspection robot walking along the line and may even cause the walking‐wheel to fall from the line. Compared with other similar inspection robots, the unique structure of the dual‐arm inspection robot with flexible‐cable is introduced ...
Yongle Wei, Jiashun Zhang, Lijin Fang, Changsheng Li   +3 more
wiley   +1 more source

Multi‐physics analysis and optimisation of high‐speed train pantograph–catenary systems allowing for velocity skin effect

High Voltage, Volume 5, Issue 6, Page 654-661, December 2020., 2020
A pantograph–catenary system (PCS) – an essential component to supply a high‐speed train (HST) – faces a variety of new challenges due to the continuously increasing train speeds. The HST traction system receives power via an electrical contact between the pantograph strip and the high‐voltage contact wire. This electrical contact is subject to serious
Xianrui Liu, Zefeng Yang, Song Xiao, Xuwei Duan, Guoqiang Gao, Wenfu Wei, Guangning Wu, Mihai Rotaru, Jan K. Sykulski   +8 more
wiley   +1 more source

Dynamic Analysis of Pantograph‐Catenary System considering Ice Coating

Shock and Vibration, Volume 2020, Issue 1, 2020., 2020
Ice coating on overhead contact system (OCS) will affect the sliding of pantograph, and arc discharge phenomena will occur between pantograph and catenary, which will threaten the normal operation of train. This paper presents a comprehensive model to analyze the dynamics of icing on pantograph‐catenary (PAC) system.
Yongming Yao, Ning Zhou, Guiming Mei, Weihua Zhang, N. A. Saeed   +4 more
wiley   +1 more source

Investigation on Monitoring System for Pantograph and Catenary Based on Condition‐Based Recognition of Pantograph

Shock and Vibration, Volume 2019, Issue 1, 2019., 2019
In recent years, the length of electrified railway systems has increased along with the number of railway vehicles in China. For the pantograph‐catenary system, as one of the key components of the vehicle system, an urgent problem includes diagnosing faults and proposing a safety monitoring system to assure safe operation, improve the level of ...
Ning Zhou, Wenjie Yang, Jiurui Liu, Weihua Zhang, Dong Wang, Franco Concli   +5 more
wiley   +1 more source

Wind‐Induced Coupling Vibration Effects of High‐Voltage Transmission Tower‐Line Systems

Shock and Vibration, Volume 2017, Issue 1, 2017., 2017
A three‐dimensional finite element model of a 500 kV high‐voltage transmission tower‐line coupling system is built using ANSYS software and verified with field‐measured data. The dynamic responses of the tower‐line system under different wind speeds and directions are analyzed and compared with the design code.
Meng Zhang, Guifeng Zhao, Lulu Wang, Jie Li, Xing Ma   +4 more
wiley   +1 more source