Results 51 to 60 of about 5,243 (170)

FCDM‐Net: A Feature‐Calibrated Dynamic Masking Network Based on Pre‐Trained Models for Few‐Shot Catenary Component Anomaly Detection

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This paper proposes a novel feature‐calibrated dynamic masking network (FCDM‐Net) for the unified few‐shot anomaly detection of catenary components. First, a lightweight residual adapter is integrated with a frozen visual encoder. Through a few‐shot fine‐tuning strategy, the general visual features are mapped to the specific manifold space of catenary ...
Zefu Wei, Zhigang Liu, Guangwu Chen, Xin Zhou, Fuxia Wang, Peng Li   +5 more
wiley   +1 more source

Study on characterization of electrical contact between pantograph and catenary

, 2011
Perfect sliding contact which requires appropriate contact force between pantograph and contact wire is the key point to guarantee the stability of current collection in locomotive.
Wangang Wang, Anping Dong, Wu, Guangning, Bo Wang, Tianzhi Li, Guangning Wu, Guoqiang Gao, Dong, Anping, Liu, Donglai, Yi Cui, Wang, Wangang, Wang, Bo, Li, Dajian, Gao, Guoqiang, Li, Tianzhi, Lijun Zhou, Zhou, Lijun, Donglai Liu, Dajian Li, Cui, Yi   +19 more
core   +1 more source

Algorithmic Energy Management in Constrained Railway Traction Networks: A Systematic Review

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This systematic review synthesises the literature on algorithmic energy management for grid‐constrained multi‐train AC railway networks, classifying the reviewed studies by algorithm family, operational scope and constraint coupling. It finds that single‐train trajectory optimisation cannot represent the coupled electrical interactions that ...
Márton László Ambrus, Stuart Hillmansen, Zhongbei Tian   +2 more
wiley   +1 more source

Analysis of Aerodynamic Noise Characteristics of High-Speed Train Pantograph with Different Installation Bases

Applied Sciences, 2019
The high-speed-train pantograph is a complex structure that consists of different rod-shaped and rectangular surfaces. Flow phenomena around the pantograph are complicated and can cause a large proportion of aerodynamic noise, which is one of the main ...
Yongfang Yao, Zhenxu Sun, Guowei Yang, Wen Liu, Prasert Prapamonthon   +4 more
doaj   +1 more source

Active Power Filter‐Based Low‐Frequency Ripple Power Suppression of the DC‐Link in Railway Traction Systems

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents an active power filtering control method to suppress ripple power in the DC‐link of railway traction systems, including both the inherent second‐order ripple of single‐phase rectifiers and additional frequency ripples introduced by the pantograph–catenary arc.
Wei Wang, Wei Jiang, Hao Yue, Xiangmin He, Xinke Wang, Wensheng Song   +5 more
wiley   +1 more source

A Study on the Pantograph Slide Wear Model Based on Energy Dissipation

Applied Sciences
During train operations, the contact surface between the pantograph slide and the catenary wire is subjected to mechanical friction and an electrical current, leading to an increase in the wear of the pantograph slide and a reduction in the service life ...
Yiming Dong, Binghong Li, Zhonghua Chen, Hebin Wang, Huayang Zhang   +4 more
doaj   +1 more source

Mechanism Analysis of Low‐Frequency Oscillation in Traction Power Supply Networks Coupled With Electric Locomotives

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
The HB‐Floquet method is proposed to quantitatively assess periodic solutions, stability boundaries, and bifurcation behaviours of the high‐power, strongly nonlinear scenario in traction power supply networks coupled with electric locomotives. ABSTRACT This study investigates low‐frequency oscillations (LFOs) in traction power supply networks coupled ...
Xian Wang, Faqiang Wang, Xinchun Cao
wiley   +1 more source

On aerodynamic noises radiated by the pantograph system of high-speed trains

, 2013
Pantograph system of high-speed trains become significant source of aerodynamic noise when travelling speed exceeds 300 km/h. In this paper, a hybrid method of non-linear acoustic solver (NLAS) and Ffowcs Williams–Hawkings (FW–H) acoustic ...
Yu HH(喻华华), Zhang HQ(张会琴), Li, JC (reprint author), Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China., Li JC(李家春)   +3 more
core   +1 more source

Research on dynamic characteristics of pantograph arc under cross wind

机车电传动, 2022
The pantograph arc has become an important factor restricting the further development of high-speed trains. Therefore, in-depth research on the characteristics of pantograph arc is of great significance for further analyzing the damage characteristics of
SUN Chuanming, LU Chao, MU Tingyou, ZHANG Zuoqin   +3 more
doaj  

Exploring Ecological Dynamics and Bifurcation Structure of a Prey–Predator Model

Complexity, Volume 2026, Issue 1, 2026.
The present work examines the dynamical features of a discrete‐time Rosenzweig–MacArthur predator–prey system in which the predation rate is modulated by prey density. Through a combination of theoretical derivations and computational experiments, we establish the occurrence of period‐doubling (PD) and Neimark–Sacker (NS) bifurcations, both of which ...
M. D. Mutakabbir Khan, M. D. Jasim Uddin, Mainul Haque, Xinzhi Liu   +3 more
wiley   +1 more source