Results 11 to 20 of about 114,793 (255)

Reducing wheel wear of a motorised metro car on a curved track with a small curve radius

open access: yesPojazdy Szynowe, 2023
A structural solution was proposed to enable passive control of the wheelsets of a motorised metro car on curved track with a small curve radius. This effect was achieved by varying the stiffness of the guidance of the wheelsets in the horizontal plane ...
Jan Leszek Matej, Piotr Orliński
doaj   +2 more sources

Critical radius prediction for small radius curved section of two-lane secondary highways based on speed characteristics

open access: yesHeliyon
Small radius curved sections of two-lane secondary highways have low technical indicators, complex alignments, and frequent accidents. In order to improve the safety of traffic operation, the article investigates the curved sections of two-lane secondary
Shengneng Hu   +3 more
doaj   +3 more sources

Design and development of bridge erecting machine with small curve radius and bottom feeding beam

open access: yesScientific Reports
As a key equipment in highway and railway construction, bridge erecting machines directly affect the feasibility, progress, and quality of project implementation.
JvCang Tong   +5 more
doaj   +3 more sources

Analysis of Track Gauge Widening in Curves with Small Radius [PDF]

open access: yesApplied Mechanics and Materials, 2015
In this paper it was performed curve negotiation analysis of three axle bogie of locomotive type JŽ 461. This locomotive has large distance between first and middle i.e. middle and last axle, which leads to increased lateral forces during curve negotiation. Final result might be widening of track gauge in curves with small radius.
Popović, Zdenka   +2 more
openaire   +2 more sources

Analysis of Excessive Noise in Passenger Rooms of Metro Vehicles in Small Radius Curves

open access: yes机车电传动, 2019
Aiming at the problem of excessive noise in passenger rooms of metro vehicles in small radius curves, the influence of vehicle air conditioning system, track status and vehicle vibration on noise in passenger rooms was analyzed based on Brüel & Kjær ...
Zhuoqun CHEN
doaj   +1 more source

SIMULATION MODEL OF TRAIN MOVEMENT IN SMALL-RADIUS CURVES

open access: yesScience and Transport Progress, 2004
on the curved sections of track movement of trains as defined in the transverse vibrations of the system "train - path." The simulation model of the system is made in MATLAB language. In tight curves when driving at maximum permitted speed system works under extreme conditions, causing high stress in a carriage and in the train path.
Krec, S., Janjanin, S., Stipetic, A.
openaire   +4 more sources

Influence of pore size on the plastic deformation of c-axis-compressed magnesium single crystals

open access: yesMaterials Research Express, 2020
The molecular dynamics method is used to establish a single crystal model of magnesium with different void sizes. Uniaxial compression along the c -axis is carried out at 300 K.
Chun Xue   +4 more
doaj   +1 more source

The accurate shaping curve for forming inside small right-angle step using cross-wedge rolling

open access: yes工程科学学报, 2022
Cross-wedge rolling (CWR) die generally has three parts: a knifing section, a stretching section, and a finishing section. When forming an inside step, to avoid generating spiral steps, a new transitional section is introduced between the knifing and ...
Kai-li ZHANG, Bao-yu WANG, Jin-xia SHEN
doaj   +1 more source

Development characteristics of inner rail corrugation in small radius curve of Metro

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract This paper mainly studies the influence of different curve positions of metro’s small radius curve and the tidality of metro passenger flow on the development of inner rail corrugation. Based on the material friction and wear theory, the rail wear is simulated and analyzed to analyze the time-frequency characteristics of rail ...
Xianxian Yin, Xiukun Wei
openaire   +1 more source

Curve-passing Performance of New Generation Single-axle Straddle Monorail Vehicle

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The curve-passing performance of a new-model single-axle straddle monorail vehicle on small-radius non-linear curve tracks and linear curve tracks is researched and analyzed.
Guomin LYU   +5 more
doaj   +1 more source

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