Results 31 to 40 of about 268 (173)

RESEARCH ON MONITORING METHOD AND APPLICATION OF THE DYNAMIC CONTACT FORCE BETWEEN CATENARY AND PANTOGRAPH BASED ON STRAIN RESPONSE INVERSION TECHNOLOGY (MT)

Jixie qiangdu, 2022
In-situ monitoring of the dynamic contact force between catenary and pantograph is very important for the quality evaluation of pantograph catenary current collection.
LEI YuHeng, REN Liang, LIU QiangPing, YOU RunZhou, XIA MengYing, LI HongNan   +5 more
doaj  

A Design of an Axisymmetric Roof With a Horizontal Rotation Axis

Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT This research proposes a novel roof design whose shape follows the mathematical model of an ideal hanging surface. The resulting roof is a surface of revolution, but its rotation axis is horizontal, which challenges conventional intuition because the axis is perpendicular to the direction of gravity.
Rafael López
wiley   +1 more source

How to reduce the greenhouse gas emissions and air pollution caused by light and heavy duty vehicles with battery-electric, fuel cell-electric and catenary trucks

Environment International, 2021
The reduction of greenhouse gas emissions is one of the greatest global challenges through 2050. Besides greenhouse gas emissions, air pollution, such as nitrogen oxide and particulate matter emissions, has gained increasing attention in agglomerated ...
Janos Lucian Breuer, Remzi Can Samsun, Detlef Stolten, Ralf Peters   +3 more
doaj   +1 more source

Evaluating Different Approaches for Modelling Rotor Aero‐Servo‐Dynamics in Frequency‐Domain Analysis of Floating Wind Turbines

Wind Energy, Volume 28, Issue 11, November 2025.
ABSTRACT Computationally efficient frequency‐domain models can play a very important role in facilitating conceptual design optimization of floating wind turbines (FWTs). However, achieving sufficient accuracy in such models is challenging due to the nonlinear variation of the aerodynamic loads, particularly the interaction between the floating ...
Serag‐Eldin Abdelmoteleb, Erin E. Bachynski‐Polić   +1 more
wiley   +1 more source

Observations of Subduction, Downward Heat Flux and Dense Filament Collapse in the Northern Gulf of Mexico

Journal of Geophysical Research: Oceans, Volume 130, Issue 11, November 2025.
Abstract Submesoscale processes are important contributors to the global heat budget and generally support upward heat transport through restratification. However, in salinity‐stratified regions, such as the northern Gulf of Mexico with its influx of freshwater from the Mississippi‐Atchafalaya river system, temperature can act like a passive tracer and
James P. Hilditch, Kerstin Bergentz, Devon Northcott, Caique Dias Luko, Kaylie Cohanim, Dylan Schlichting, Alejandra Sanchez‐Rios, Kaelan Weiss, Robert Hetland, Jennifer MacKinnon, Jonathan Nash, R. Kipp Shearman, Leif N. Thomas   +12 more
wiley   +1 more source

Research on New High-Speed Busbar Parameter Design for Rigid Catenary

Chengshi guidao jiaotong yanjiu
[Objective] To meet PC (pantograph-catenary) contact performance requirements of the rigid catenary system in tunnels with the speed exceeding 200 km/h, the structural parameter optimization design and performance test of the rigid catenary busbar are ...
CHENG Zehua, GUAN Jinfa, SU Guanghui, ZHANG Lingyun   +3 more
doaj   +1 more source

Dynamic performance analysis of different spans in rigid catenary

Journal of Physics: Conference Series
Abstract Utilizing a rigid catenary overhead line in long tunnels can reduce initial investment and lower subsequent operational and maintenance costs. To improve the stability of the contact force between the pantograph and the catenary, an equivalent beam element for the rigid catenary is established, and the differential equation for ...
Jianlong Guo, Ying Wang, Chenyv Li, Yixuan Wang   +3 more
openaire   +1 more source

Impact of slug length in gas–liquid two‐phase flow on the structural stress characteristics of horizontal rigid pipelines

The Canadian Journal of Chemical Engineering, Volume 103, Issue 10, Page 5124-5142, October 2025.
Data collection and processing of slug length in two‐phase flow‐induced stress analysis. Abstract The intermittent passage of liquid slugs and gas pockets in slug flow generates substantial cyclic stress damage to piping systems and their supports. This issue poses significant challenges to the various industries in which this flow pattern is present ...
Abdalellah O. Mohmmed, Hussain H. Al‐Kayiem, Abderraouf Arabi   +2 more
wiley   +1 more source

The Catenary Line: Numerical Aspects and Solutions for Special Boundary Conditions

Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 3, September 2025.
ABSTRACT The rope curve, or catenary, is a mechanical problem that has been solved since the 17th century. The hyperbolic cosine curve as its solution is the subject of many mechanics textbooks. Nevertheless, it is worth taking another look at the catenary because technical applications, for example, cable cars or suspension cables, have boundary ...
Michael Beitelschmidt
wiley   +1 more source

Preliminary Study on an Integrated System Composed of a Floating Offshore Wind Turbine and an Octagonal Fishing Cage

Journal of Marine Science and Engineering, 2022
To maximize the utilization of ocean resources, shorten the return period of investment and directly supply energy to the fishing cage, this paper performs a preliminary study for a state-of-the-art concept integrating a floating offshore wind turbine ...
Chenglin Zhang, Jincheng Xu, Jianjun Shan, Andong Liu, Mingchao Cui, Huang Liu, Chongwu Guan, Shuangyi Xie   +7 more
doaj   +1 more source