Results 21 to 30 of about 437 (210)
Tracking Breather Dynamics in Irregular Sea State Conditions [PDF]
Physical Review Letters, 2016 Breather solutions of the nonlinear Schrödinger equation (NLSE) are known to be considered as backbone models for extreme events in the ocean as well as in Kerr media. These exact determinisitic rogue wave (RW) prototypes on a regular background describe a wide-range of modulation instability configurations.
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A Three-Stage Prediction Method for Track Displacement During Shield Tunneling
Urban Rail Transit, 2023 Track displacement is an important factor of track irregularity. Existing researches related with track displacement prediction generally ignore the influence from underground construction engineering such as shield tunneling, resulting in inaccurate ...
Lei Tan +5 more
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Evaluation of Sperling’s Index in Passenger and Freight Trains Under Different Speeds and Track Irregularities [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2022 The two factors of track irregularity and train speed affect the dynamic behavior of rail vehicles and can lead to an increase in dynamic forces, a decrease in ride comfort, and derailment in some cases.
sajjad sattari +4 more
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Applied Sciences, 2021 This study investigates a load-based, track-irregularity-analysis technique for ballasted tracks on a serviced railway line with respect to excavation work conducted in adjacent sites.
Jung-Youl Choi +3 more
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Advances 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
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Vibration Response Analysis of Overhead System Regarding Train-Track-Bridge Dynamic Interaction
Applied 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
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Nihon Kikai Gakkai ronbunshuThe maintenance standard values for track irregularity at high-speed type turnouts where trains pass through the main line of turnout at a speed of 120 km/h are managed with stricter values compared to general turnouts.
Katsutoshi SHIOTA +2 more
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The Progress Mechanism of Track Geometrical Irregularity Focusing on Hanging Sleepers [PDF]
International 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
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Condition Monitoring of Shinkansen Tracks Based on Inverse Analysis
Chemical 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
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Dynamic Analysis of the Influence of the Track Irregularity on the Running Performance of the Railway Vehicle [PDF]
한국정밀공학회지, 2017 Carrying out accurate and reliable track maintenance tasks is very important to improve the running safety of a railway vehicle and the ride quality for the passenger.
Bu Byoung Kang
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