Results 51 to 60 of about 9,171 (215)

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2719-2741, September 2026.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma, Shaodong Jiang, Kun Xu, Qiang Han, Xiuli Du, Kaiming Bi   +5 more
wiley   +1 more source

Simulation and Generalized Dynamic Modeling of Metro Pantograph-Catenary System Based on Least Squares Support Vector Machine

机车电传动, 2017
A Generalized dynamic modeling method was proposed for pantograph-catenary system based on least squares support machine (LSSVM), and the pantograph-catenary model identification and simulation were carried out.
Huang Yuping, JIANG Wei, TONG Jingquan, SHI Luxing   +3 more
doaj  

Pantograph-Catenary Relation of Urban Rail Transit Lines under Catenary Iced Condition

Chengshi guidao jiaotong yanjiu
［Objective］ Under the condition of ice forming on catenary surface (hereinafter referred to as ′iced condition′), the normal current collection of train pantograph is disrupted.
ZHAO Haibo, ZHOU Jiaming, ZHANG Shuai
doaj   +1 more source

A fault prediction method for catenary of high-speed rails based on meteorological conditions

Journal of Modern Transportation, 2019
Fault frequency of catenary is related to meteorological conditions. In this work, based on the historical data, catenary fault frequency and weather-related fault rate are introduced to analyse the correlation between catenary faults and meteorological ...
Sheng Lin, Qinyang Yu, Zhen Wang, Ding Feng, Shibin Gao   +4 more
doaj   +1 more source

Floating Platform Geometry as a Frequency‐Selective Mechanism for Triboelectric Wave Energy Harvesting

SmartSys, Volume 2, Issue 3, September 2026.
ABSTRACT Ocean wave energy has enormous potential for sustainable power generation but conventional technologies often face challenges in efficiency, durability, and adaptability to specific sites. Triboelectric nanogenerators (TENGs) are able to convert irregular and low frequency water motion into electrical energy, but their performance depends on ...
Catia Rodrigues, Ricardo Esteves, José Correia, Carlos Callaty, Daniel Clemente, Paulo Rosa‐Santos, Francisco Taveira‐Pinto, Andre Pereira, João Ventura   +8 more
wiley   +1 more source

The pantograph-catenary arc test system for high-speed railways

, 2012
High speed electric multi units (EMU) get power through pantograph-centenary electrical contact. As the EMU running velocity increases, rail surface irregularities, undulations of the catenary and vibrations of the pantograph head cause the status of ...
Wu, Guang-Ning, Wang, Bo, Liu, Dong-Lai, Gao, Guo-Qiang, Wang, Wan-Gang, Cui, Yi   +5 more
core   +1 more source

Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads [PDF]

, 2010
Winds as an environmental factor can cause significant difficulties for the railway system operation. The railway overhead has been particularly vulnerable to cross-winds related problems, such as development of undamped oscillations due to galloping ...
Meseguer Ruiz, José, Oscar Lopez-Garcia, Avila Sanchez, Sergio, Sergio Avila-Sanchez, Jose Meseguer, López García, Oscar   +5 more
core   +1 more source

Catenary Rheological Model: A Compact Function for Describing Ceramic Suspension Viscosity

Journal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
ABSTRACT The Catenary Rheological Model (CRM) provides a compact functional description of the viscosity of ceramic suspensions across a wide range of solid loadings. The proposed formulation captures both dilute and concentrated regimens within a single analytical expression using only two parameters.
Patrik Sokola, David Markusík, František Šoukal, Tomáš Opravil, Martin Sahuľ, Petr Ptáček   +5 more
wiley   +1 more source

Photo‐ and Thermally‐Induced Huge Layer Decoupling in Twisted Bilayer WSe2

Advanced Materials, Volume 38, Issue 45, 13 August 2026.
A newly developed automated dark‐field tomography visualizes twist‐angle‐dependent structural relaxation and quantifies 3D structures in twisted bilayer WSe2. This approach reveals the evolution of local stacking configurations, thermally induced sub‐ångström interlayer decoupling, and light‐driven interlayer expansion on picosecond timescales ...
A. Nakamura, Y. Chiashi, T. Shimojima, Y. Tanaka, S. Akatsuka, M. Sakano, S. Masubuchi, T. Machida, K. Watanabe, T. Taniguchi, K. Ishizaka   +10 more
wiley   +1 more source

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

High Voltage, Volume 11, Issue 4, Page 1090-1101, August 2026.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma, Tao Li, Mahdi Motagh, Yan Liu, Yangmao Wen   +4 more
wiley   +1 more source