Results 21 to 30 of about 315,812 (185)

An investigation into the aerodynamic characteristics of catenary contact wires in a cross-wind [PDF]

open access: yes, 2001
An experimental analysis of the aerodynamic characteristics of catenary contact wires is presented. The aerodynamic data obtained were used to calculate the Glauert-Den Harthog criterion for one-dimensional galloping.
Scanlon, T.J., Stickland, M.T.
core   +4 more sources

A procedure for validating rigid catenary models using evolutionary techniques [PDF]

open access: green, 2019
This paper describes a method to validate rigid catenary finite element models from modal tests. The model parameters are obtained by means of an optimization process using evolutionary techniques.
Montserrat Simarro   +3 more
openalex   +2 more sources

Effects of Crosswind on Pantograph–Catenary Wear Using Nonlinear Multibody System Dynamic Algorithms

open access: yesWorld Electric Vehicle Journal, 2023
In this study, a multibody system (MBS) computational framework is developed to determine the exact location of the contact point and wear prediction resulting from the pantograph–catenary interaction. The railroad vehicle models in the MBS computational
Siripong Daocharoenporn   +1 more
doaj   +1 more source

Reduced-order modelling of vortex-induced vibration of catenary riser [PDF]

open access: yes, 2009
A new reduced-order model capable of analyzing the vortex-induced vibration of catenary riser in the ocean current has been developed. This semi analytical-numerical approach is versatile and allows for a significant reduction in computational effort for
O' Brien, P.   +2 more
core   +4 more sources

Vortex-induced vibration of catenary riser: reduced-order modeling and lock-in analysis using wake oscillator [PDF]

open access: yes, 2009
A new reduced-order model capable of analyzing the vortex-induced vibration of catenary riser in the ocean current has been developed. This semi analytical-numerical approach is versatile and allows for a significant reduction in computational effort for
O'Brien, P.   +4 more
core   +3 more sources

An investigation into the mechanical damping characteristics of catenary contact wires and their effect on aerodynamic galloping instability [PDF]

open access: yes, 2003
Measurement of the damped oscillation of a section of the UK East Coast Main Line (ECML) catenary/contact wire system was undertaken, and the natural frequency and mechanical damping were found to be 1.4Hz and 0.05 respectively. This information was used
Craighead, I.A.   +3 more
core   +4 more sources

Pantograph catenary dynamic optimisation based on advanced multibody and finite element co-simulation tools [PDF]

open access: yes, 2013
This paper presents recent developments undertaken by the SNCF Innovation & Research Department on numerical modelling of pantograph catenary interaction. It aims at describing an efficient co-simulation process between finite element (FE) and multibody (
BALMES, Etienne   +4 more
core   +1 more source

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

open access: yesUrban 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   +4 more
doaj   +1 more source

Structural Health Monitoring Method of Pantograph–Catenary System Based on Strain Response Inversion

open access: yesFrontiers in Physics, 2021
Pantograph-catenary system provides electric energy for the subway lines; its health status is essential to the serviceability of the vehicle. In this study, a real-time structural health monitoring method based on strain response inversion is proposed ...
Sheng Liu   +4 more
doaj   +1 more source

A Study on the Vibration Characteristics and Damage Mechanism of Pantograph Strips in a Railway Electrification System

open access: yesMachines, 2022
This paper presents the vibration characteristics of a pantograph–catenary interaction in a rigid catenary system. Both computational simulation and laboratory tests are carried out to evaluate the frequency contents of pantograph strips.
Qirui Wu   +3 more
doaj   +1 more source

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