Results 31 to 40 of about 3,366,577 (173)

The Minimum Longitudinal Horizontal Linear-Stiffness of Piers of Typical High-Speed Railway’s Layout of Turnout and Bridge

open access: yes, 2011
The values of longitudinal horizontal linear-stiffness of piers are very important parameters in the design of welded turnout on bridge and they can have a great impact on the force and displacement of the turnout.
Wang Ping, Zhe Liu
core   +1 more source

Research on mechanical behavior and design of continuous welded rail on super-large-span deck arch bridge with π-shaped rigid frame

open access: yesKSCE Journal of Civil Engineering
A single mixed passenger and freight railway adopts continuous welded rail (CWR) on a super-large-span deck arch bridge with a π-shaped rigid frame, and the main span length is 570 m. To support the design of CWR on the deck arch bridge, the influence of
Hao Xu   +4 more
doaj   +1 more source

Study on Composed Stiffness of Rail Vehicles Primary Suspension Tumbler Locating

open access: yes机车电传动, 2013
For calculating stiffness of rail vehicles tumbler locating structure, primary suspension vertical, horizontal and longitudinal dynamic model of tumbler locating were built, composed stiffness calculating formula of which was derived through balanceable ...
DUAN Hua-dong, TAO Gong-an
doaj  

Research on Vehicle Course Stability on Mountain Roads

open access: yesJournal of Architectural and Engineering Research
This study aims to develop a generalized indicator of vehicle course stability for mountain roads that simultaneously accounts for longitudinal and transverse road slopes, small-radius horizontal curves, the tire–road adhesion coefficient, vehicle ...
Valerik Harutyunyan   +3 more
doaj   +1 more source

Modeling Friction Performance of Drill String Torsional Oscillation Using Dynamic Friction Model

open access: yesShock and Vibration, 2017
Drill string torsional and longitudinal oscillation can significantly reduce axial drag in horizontal drilling. An improved theoretical model for the analysis of the frictional force was proposed based on microscopic contact deformation theory and a ...
Xingming Wang   +3 more
doaj   +1 more source

Influence of Traction Force on Locomotive Wheel-Rail Relationship

open access: yes机车电传动, 2019
In order to analyze the influence of locomotive traction force on wheel-rail relationship, a locomotive track coupling dynamics model based on 60 kg/m and 60N rail was established in SIMPACK multi-body dynamics software, and the horizontal track and ramp
Xiao WU   +3 more
doaj  

Curvature-induced bunch self-interaction for an energy-chirped bunch in magnetic bends

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2008
Within the realm of classical electrodynamics, the curvature-induced bunch collective interaction in magnetic bends can be studied using effective forces in the canonical formulation of the coherent synchrotron radiation (CSR) effect.
Rui Li
doaj   +1 more source

A rigid–flexible coupling finite element model of coupler for analyzing train instability behavior during collision

open access: yesRailway Engineering Science, 2023
Rail vehicles generate huge longitudinal impact loads in collisions. If unreasonable matching exists between the compressive strength of the intermediate coupler and the structural strength of the car body, the risk of car body structure damage and train
Jingke Zhang   +7 more
doaj   +1 more source

Inhomogeneous Gradient Poiseuille Flows of a Vertically Swirled Fluid [PDF]

open access: yesJournal of Applied and Computational Mechanics
An exact solution is proposed for describing the steady-state and unsteady gradient Poiseuille shear flow of a viscous incompressible fluid in a horizontal infinite layer.
Natalya Burmasheva   +3 more
doaj   +1 more source

Seismic response of CRTS II ballastless track-bridge system considering the damage of track structure

open access: yesScience Progress, 2021
Based on the 16–32 m simply-supported beam bridge on Shanghai-Kunming high-speed railway, a collision model of CRTS II track system was established.
Bin Yan, Zhe Li, Shi Liu, Hao-Ran Xie
doaj   +1 more source

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