Results 31 to 40 of about 580,864 (238)

Time-Frequency Analysis of Horizontal Vibration for Vehicle-Track System Based on Hilbert-Huang Transform

open access: yesAdvances in Mechanical Engineering, 2013
Relationship between track alignment irregularity and car body horizontal vibration acceleration is analyzed by using Hilbert-Huang Transform (HHT). Actual measured alignment irregularity and car body horizontal vibration acceleration are decomposed by ...
Zaiwei Li, Songliang Lian, Yuelei He
doaj   +1 more source

The Progress Mechanism of Track Geometrical Irregularity Focusing on Hanging Sleepers [PDF]

open access: yesInternational Journal of Railway Research, 2015
This topic is very traditional and basically has been concerned for a long time. A lot of sophisticated vehicle/track interaction model and track dynamic deterioration model have been developed so far.
Makoto Ishida
doaj  

Condition Monitoring of Shinkansen Tracks Based on Inverse Analysis

open access: yesChemical Engineering Transactions, 2013
This paper demonstrates the possibility to estimate the track irregularities of Shinkansen tracks using car-body motions only. In an inverse problem to estimate track irregularity from car-body motions, a Kalman Filter (KF) was applied to solve the ...
T. Kobayashi, Y. Naganuma, H. Tsunashima
doaj   +1 more source

Vibration Response Analysis of Overhead System Regarding Train-Track-Bridge Dynamic Interaction

open access: yesApplied Sciences, 2022
Based on the paucity of studies on the analysis of the coupled vibration response of the train-track-overhead System, in this article, finite element software ABAQUS was integrated with multi-body dynamics software, Universal Mechanism (UM), to construct
Xiangyan Fan   +4 more
doaj   +1 more source

Dynamic effect of high speed railway traffic loads on the ballast track settlement [PDF]

open access: yes, 2011
The traditional ballast track structures are still being used in high speed railways lines with success, however technical problems or performance features have led to non-ballast track solution in some cases.
Gabaldón Castillo, Felipe   +2 more
core  

On-Board Detection of Longitudinal Track Irregularity Via Axle Box Acceleration in HSR

open access: yesIEEE Access, 2021
Track irregularity detection serves as one of the most essential technologies to interpret the in-service condition of the high-speed railway (HSR) and ensure the comfortability and safety in HSR service.
Xianfu Sun   +4 more
doaj   +1 more source

Intelligent identification for vertical track irregularity based on multi-level evidential reasoning rule model

open access: yes, 2022
Vertical track irregularity is one of the most significant indicators to evaluate track health. Accurate identification of vertical track irregularity is beneficial to achieve precise maintenance of the track and thus avoid accidents.
Xu, Xiaojian   +6 more
core   +1 more source

Drive-by methodology to identify resonant bridges using track irregularity measured by high-speed trains [PDF]

open access: yes, 2021
Resonance of railway bridges is a matter of major concern in high-speed railways because it reduces riding comfort, damages the attached structures, and decreases the strength of girder bodies.
Collina A.   +4 more
core   +1 more source

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif   +17 more
wiley   +1 more source

The impact of wheel wear and track irregularity amplitudes on the operation of high-speed trains

open access: yesAdvances in Mechanical Engineering
This study proposes a coupled framework integrating wheel wear, track irregularities, and frozen conditions, while incorporating track irregularity amplitudes and ice mass into the analysis.
Xikang Hu   +3 more
doaj   +1 more source

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