Results 41 to 50 of about 1,843 (138)

Study on the Length of the Effective Vibration Area of the Catenary in a Pantograph–Catenary Interaction System

Applied Sciences
The effective vibration area includes most of the catenary vibration caused by pantograph–catenary interactions and is the basis of the real-time catenary model for hardware-in-the-loop simulation.
Liming Chen, Like Pan, Yan Xu, Chengbin Huang   +3 more
doaj   +1 more source

Robustness assessment of reinforced concrete structures for different failure scenarios

Structural Concrete, Volume 27, Issue 1, Page 279-313, February 2026.
Abstract This study describes the robustness assessment of 3D reinforced concrete structures analyzing the response of the 2D frames in different design configurations and failure scenarios. The structures are characterized by both frames with wide beams and seismic‐resistant frames with deep beams.
E. Miceli, Massimiliano De Iuliis, P. Castaldo   +2 more
wiley   +1 more source

Geometrically Templated, Ultra‐Lightweight and High Strength Soap Films from Lyotropic Liquid Crystalline Graphene Oxide/Polymer Composites

Advanced Functional Materials, Volume 36, Issue 8, 26 January 2026.
Shellular materials form spontaneously by dip coating the primitive triply periodic minimal surface (TPMS) wireframe in an aqueous solution of lyotropic liquid crystalline graphene oxide (GO) nanosheets mixed with polymers. Regulated by surface tension, GO nanosheets align on the polymer soap film as the stress builds up during drying.
Yinding Chi, Yuchong Gao, Mostafa Akbari, Kun‐Hao Yu, Kun‐Yu Wang, Mohit Patel, Shouhong Fan, Ziyun Zhang, Masoud Akbarzadeh, Shu Yang   +9 more
wiley   +1 more source

Study on abnormal abrasion of metro pantograph

机车电传动, 2023
Pantograph-catenary system is the central system for the power supply of urban rail transit trains. Higher train speed and complex train operating environment can generate severe vibrations on the pantograph-catenary system, resulting in high-frequency ...
ZHANG Shiyu, YANG Gang, LYU Kun, QIING Limu, LI Fu   +4 more
doaj  

Enhanced Rabi Splitting of Exciton‐Polaritons and Plasmon‐Polaritons in Lithium Niobate Metasurface

Laser &Photonics Reviews, Volume 20, Issue 1, 8 January 2026.
This study presents an ultrathin lithium niobate metasurface capable of inducing highly sensitive Fano‐shaped resonances, enabling strong coupling with TMDC monolayers and plasmonic metamaterials/metasurfaces. Adjustable Q‐factors lead to controllable coupling strengths, achieving substantial Rabi splitting.
Andergachew Mekonnen Berhe, Ambali A. Odebowale, Kirill Koshelev, Haroldo T. Hattori, Andrey E. Miroshnichenko   +4 more
wiley   +1 more source

Research on the Influence of Straddle-Type Monorail’s Pantograph Head Parameter on Power Collection Quality

Urban Rail Transit, 2017
At present, the coupling relationship between the pantograph and catenary is not ideal for straddle-type monorail. The power collection quality is poor, and the wear of the contact strip of a pantograph is uneven.
Zhen Yang, Zixue Du, Cheng Chen, Xiaoxia Wen, Zhouzhou Xu   +4 more
doaj   +1 more source

Integrated Traction and Guidance Control of Independently Rotating Wheelsets in Urban Rail Vehicles Using Flux‐Map‐Based Torque Reference Generation

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
Independently rotating wheelsets require accurate realization of traction and differential wheel torques under electrical constraints. This paper proposes a hierarchical control framework combining speed PI and LQ‐servo lateral guidance with scaling‐based torque allocation and a flux‐map current reference generator that accounts for DC‐link voltage ...
Hanwoong Ahn, Hyun‐Jong Park, Ho‐Joon Lee   +2 more
wiley   +1 more source

Multi-parameter optimizations of elastic chain catenary based on response surface methodology for high-speed railway

Frontiers in Mechanical Engineering
As train operating speeds increase, the quality of pantograph-catenary current collection deteriorates, sometimes even resulting in contact loss. To ensure stable current collection during high-speed operation, it is crucial to optimize the design ...
Zongfang Zhang, Maoyou Zhang
doaj   +1 more source

Estimation of wind deflection of high-speed railway catenary based on nonlinear finite element method

机车电传动, 2023
The electrified railway catenary generates wind deflection and vibration under wind load. The longitudinal wind deflection affects the current collection quality of the contact wire and the pantograph, and causes contact force fluctuations and pantograph-
CHU Wenping
doaj  

Genetic Optimization Method of Pantograph and Catenary Comprehensive Monitor Status Prediction Model Based on Adadelta Deep Neural Network

IEEE Access, 2019
The status of the Pantograph and Catenary is the guarantee for the safe operation of the railway. However, the traditional Pantograph and Catenary status judgment efficiency is not satisfactory, and it is impossible to timely repair the catenary, which ...
Zhijian Qu, Shengao Yuan, Rui Chi, Liuchen Chang, Liang Zhao   +4 more
doaj   +1 more source