Results 11 to 20 of about 18,298 (222)

Dynamic Responses of the Metro Train’s Bogie Frames: Field Tests and Data Analysis

open access: yesShock and Vibration, 2020
This paper focuses on the dynamic characteristics of the metro train’s bogie frames based on the field test data. The acceleration signals of both motor bogie frame and trailer bogie frame of a standard B-type metro train were measured.
Xuhui He   +3 more
doaj   +1 more source

Methodology for identifying aerodynamic sound sources and mitigation measures for bogies in high-speed trains

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Noise generated from Shinkansen trains mainly consists of wheel/rail noise, bridge noise and aerodynamic noise. Generally rolling noise and structure-borne noise from a viaduct increase in proportional to the second to third power of the train speed ...
Toki UDA, Toshiki KITAGAWA
doaj   +1 more source

A new way to determine the indicators of vertical and horizontal of a subway car [PDF]

open access: yesE3S Web of Conferences, 2023
The issues of measuring the coefficients of vertical and horizontal dynamics of a subway car during running dynamic tests are reviewed. The theoretical research of bogie frame loading by finite element method has been done.
Rahimov R.   +3 more
doaj   +1 more source

Wear rates in urban rail systems [PDF]

open access: yes, 2017
A significant part of maintenance costs in urban rail systems (metro, tram, light rapid transit/light metro) is due to wheel-rail wear. Wear rates - measured for example as depth of wear per kilometre run (rolling stock) or per train passage (rails ...
Licciardello, R.   +3 more
core   +1 more source

Twin disc assessment of wheel/rail adhesion [PDF]

open access: yes, 2008
Loss of adhesion between a railway wheel and the track has implications for both braking and traction. Poor adhesion in braking is a safety issue as it leads to extended stopping distances. In traction, it is a performance issue as it may lead to reduced
Gallardo-Hernandez, E.A., Lewis, R.
core   +1 more source

A study of commercial vehicle brake judder transmission using multi-body dynamic analysis [PDF]

open access: yes, 2007
YesBraking-induced forced vibration, known as brake judder in road vehicles, causes dissatisfaction to drivers and passengers and also damage and possible early failure in components and systems. In this paper, the transmission of judder vibration from
Day, Andrew J.   +2 more
core   +1 more source

Calculation of Basic Indicators of Running Safety on the Example of a Freight Wagon with the y25 Bogie

open access: yesCommunications, 2022
Freight wagons are among the most widely used means of transporting goods by land. Such a number of wagons and transported material and amount of material need to meet requirements in terms of safety and reliability. A wagon bogie is a key element in the
Ján Dižo   +3 more
doaj   +1 more source

Improving the energy efficiency of a tram’s running gear

open access: yesActa Polytechnica, 2023
This research analyses the influence of some design features of an undercarriage of a tram on the energy efficiency in terms of mechanical energy losses during its operation.
Stanislav Semenov   +5 more
doaj   +1 more source

Improved method for detecting weak abrupt information based on permutation entropy

open access: yesAdvances in Mechanical Engineering, 2017
As a dynamic detecting method for abrupt information, permutation entropy could effectively reflect the subtle change in time series data, which is also simple and can be computed conveniently.
Yongjun Shen, Junfeng Wang, Shaopu Yang
doaj   +1 more source

Study of the Influence of the Two-Drive-Axle Bogie Parameters on the Three-Axle Vehicle Handling

open access: yesMachines
The presence of a bogie in three-axle vehicles when moving along a curved trajectory leads to deterioration in its handling and maneuverability. The paper developed a mathematical model of the elastic bogie wheel while moving along a curvilinear ...
Vasyl Mateichyk   +6 more
doaj   +1 more source

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