Results 11 to 20 of about 87 (75)

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

Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines [PDF]

Railway Sciences
Purpose – As a key structure in the railway power supply system, the overhead catenary pillar carries the entire weight and dynamic load of the contact suspension device and supporting equipment.
Wei Du, Suxia Zhou, Zhongyu Yi, Ruohan Xiang, Yishuo Liu, Zhenping Shi, Shanqing Peng   +6 more
doaj   +1 more source

Simulation model for the study of overhead rail current collector systems dynamics, focused on the design of a new conductor rail [PDF]

, 2006
Overhead rigid conductor arrangements for current collection for railway traction have some advantages compared to other, more conventional, energy supply systems.
Suárez Esteban, Berta, Vera, Carlos, Paulin, Jenny, Rodríguez, Pablo   +3 more
core   +1 more source

Metodología y desarrollo de herramientas para el estudio de la interacción pantógrafo catenaria a través de modelos virtuales y su aplicación a sistemas de catenaria rígida

, 2022
El principal objetivo que se ha planteado para el desarrollo de esta tesis es la generación de una base de conocimientos sobre sistemas de catenaria, en concreto sobre catenaria rígida, a través de la generación de una herramienta de simulación que ...
Calvo Hernández, Álvaro
core   +1 more source