Results 61 to 70 of about 15,605,525 (207)

Effect of Structural Parameters on Pantograph–Catenary Interaction Performance in High-Speed Railways

Infrastructures
With the rapid development of high-speed railways, the dynamic performance of the pantograph–catenary system plays a crucial role in ensuring the safe and stable operation of trains.
Tong Xing, Xufan Wang, Like Pan, Yang Song, Dehai Zhang, Qun Yu   +5 more
doaj   +1 more source

Research on Aerodynamic Noise Reduction for High-Speed Trains

Shock and Vibration, 2016
A broadband noise source model based on Lighthill’s acoustic theory was used to perform numerical simulations of the aerodynamic noise sources for a high-speed train.
Yadong Zhang, Jiye Zhang, Tian Li, Liang Zhang, Weihua Zhang   +4 more
doaj   +1 more source

An Effective Numerical Approach for Fractional Integro‐Differential Systems Using Shifted Airfoil Polynomials

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we propose a projection method that utilizes shifted airfoil polynomials to solve systems of weakly singular fractional integro‐differential equations (FIDEs). The proposed approach converts the original system into two linear algebraic systems, facilitating efficient numerical solutions.
Saeed Althubiti, Chang Phang
wiley   +1 more source

Fatigue analysis of catenary contact wires for high speed trains [PDF]

, 2011
The fatigue fracture is one of the most critical failures which may occur on the high speed network because it is undetectable and it has a huge impact on traffic disruption.
MAITOURNAM, Habibou, BALMES, Etienne, NGUYEN TAJAN, T.M.L., MASSAT, Jean-Pierre, Massat, Jean Pierre   +4 more
core  

An investigation into the characteristics of a novel rotatable pantograph catenary system for high-speed trains

, 2021
High speed trains receive traction electrical energy from a high-voltage catenary via a pantograph catenary system (PCS). As the velocity of trains increases, the traditional PCSs face significant challenges, such as strong aero resistance under high ...
Wu, Jingchi, Rao, Yang, Deng, Zhida, Wu, Guangning, Sykulski, Jan K., Xiao, Song, Zhang, Can, Luo, Yuanpei   +7 more
core   +1 more source

A new nonlinear displacement-dependent parametric model of a high-speed rail pantograph hydraulic damper [PDF]

, 2020
A new fully parametric model revealing the nonlinear displacement-dependent characteristics of a high-speed rail pantograph damper has been developed in this study.
Zhang, Weihua, Wang, Wenlin, Zhou, Zirong, Iwnicki, Simon   +3 more
core   +1 more source

Optimization Design Scheme for Aerodynamic Noise Reduction in Pantograph Area of High-speed Railway EMU

Chengshi guidao jiaotong yanjiu
［Objective］ With the increase of train operating speed, noise levels have gradually become a critical factor restricting the development of high-speed railways.
YU Yongge, WANG Chengtao, GAO Yang, YU Wanyi, MA Changfu, ZHANG Guoqin   +5 more
doaj   +1 more source

Research on the phased development characteristics of pantograph catenary arc under low air pressure and strong airflow

机车电传动, 2023
Pantograph catenary arc is an important factor threatening the current-receiving quality of high-speed trains. The motion characteristics and development law of pantograph arc under low air pressure are significantly different from those under ...
XU Yue, QIAN Pengyu, CHEN Huan, PENG Wei, YANG Zefeng   +4 more
doaj  

On ℬ‐Analog of the Sumudu Transform Associated With the General Quantum ℬ‐Difference Operator

Journal of Mathematics, Volume 2026, Issue 1, 2026.
We present here a B‐analog of the Sumudu transform defined via a general quantum B‐difference operator which generalizes classical difference operators in the context of quantum calculus, is employed to study the proposed problem. We explore the core characteristics of the B‐Sumudu transform and illustrate its applications in solving B‐initial value ...
Karima M. Oraby, Youssri Hassan Youssri, Smritijit Sen   +2 more
wiley   +1 more source

Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph

机车电传动, 2020
The elastic element of high-speed pantograph is used to relieve the shock and vibration between pantograph and catenary to ensure the dynamic current collection of pantograph head is stable and reliable.
Yingyu YANG, Congjian JIANG, Jiejun LYU
doaj