A vehicle–track beam matching index in EMS maglev transportation system
Sign Up to like & getrecommendations! Published in 2019 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-019-01638-6
Abstract: In order to study the stability and bifurcation of the EMS maglev transportation system, an index that can evaluate the matching degree between the EMS vehicle and track beam is proposed. The coupling system is… read more here.
Keywords: track beam; vehicle track; system; beam ... See more keywords
Design and performance test of the fast-steering mirror with flexure hinge used in vehicle track-launch system
Sign Up to like & getrecommendations! Published in 2019 at "Optoelectronics Letters"
DOI: 10.1007/s11801-019-8163-9
Abstract: To accurately launch laser, a fast-steering mirror (FSM) with flexure hinge is designed. First, actuators, angle sensors and flexure hinge were designed or selected respectively according to requirements of vehicle track-launch system. Then, the servo… read more here.
Keywords: system; launch system; flexure hinge; track launch ... See more keywords
Research on the evaluation criteria for safety state of train operation based on the scaled model
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2021.105481
Abstract: Abstract To accurately predict the train operation state through the test results of the scaled vehicle-track test platform, based on the similarity theory and vehicle-track coupling dynamics theory, the similarity criterion of vehicle-track coupling dynamics… read more here.
Keywords: vehicle; vehicle track; evaluation; train ... See more keywords
On effects of track random irregularities on random vibrations of vehicle–track interactions
Sign Up to like & getrecommendations! Published in 2017 at "Probabilistic Engineering Mechanics"
DOI: 10.1016/j.probengmech.2017.10.002
Abstract: Abstract As the integrated reflection of track substructure deformations and the most important excitation for vehicle–track interactions, track irregularities show random nature, and generally being regarded as weak stationary random processes. To better expose the… read more here.
Keywords: track random; track; track interactions; random irregularities ... See more keywords
Modelling railway ballasted track settlement in vehicle-track interaction analysis
Sign Up to like & getrecommendations! Published in 2021 at "Transportation geotechnics"
DOI: 10.1016/j.trgeo.2020.100433
Abstract: Abstract The geometry of a ballasted railway gradually deteriorates with trafficking, mainly as a result of the plastic settlement of the track-bed (ballast and sub-base). The rate and amount of settlement depend on a number… read more here.
Keywords: vehicle track; settlement; geometry; railway ... See more keywords
Study on effect of wheel polygonal wear on high-speed vehicle-track-subgrade vertical interactions
Sign Up to like & getrecommendations! Published in 2019 at "Wear"
DOI: 10.1016/j.wear.2019.05.029
Abstract: Abstract Wheel polygonal wear, as a form of wheel surface damage, is of great concern and potential threat to the deterioration and safety of railway systems. The experimentally measured polygonal wear can be treated as… read more here.
Keywords: track; polygonal wear; wheel; vehicle track ... See more keywords
A linear complementarity method for the solution of vertical vehicle–track interaction
Sign Up to like & getrecommendations! Published in 2018 at "Vehicle System Dynamics"
DOI: 10.1080/00423114.2017.1372585
Abstract: ABSTRACT A new method is proposed for the solution of the vertical vehicle–track interaction including a separation between wheel and rail. The vehicle is modelled as a multi-body system using rigid bodies, and the track… read more here.
Keywords: track interaction; vehicle; method; wheel rail ... See more keywords
Influence of the finite element type of the sleeper on vehicle-track interaction: a numerical study
Sign Up to like & getrecommendations! Published in 2020 at "Vehicle System Dynamics"
DOI: 10.1080/00423114.2020.1769847
Abstract: In the framework of vehicle-track interaction, this work puts an emphasis on clarifying the influence of sleeper finite element types on system dynamic responses. Three sleeper element types, namely the rigid-body, extensible Euler-Bernoulli beam and… read more here.
Keywords: finite element; system; element; vehicle ... See more keywords
Vehicle Track Segmentation Using Higher Order Random Fields
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2016.2643564
Abstract: We present an approach to segment vehicle tracks in coherent change detection images, a product of combining two synthetic aperture radar images taken at different times. The approach uses multiscale higher order random field models… read more here.
Keywords: order random; vehicle track; vehicle; higher order ... See more keywords
A Three-Dimensional Dynamic Model for Railway Vehicle–Track Interactions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Computational and Nonlinear Dynamics"
DOI: 10.1115/1.4040254
Abstract: In light of two wheel–rail contact relations, i.e., displacement compatibility and force equilibrium, a newly developed three-dimensional (3D) model for vehicle–track interactions is presented in this paper. This model is founded on the basis of… read more here.
Keywords: vehicle track; vehicle; model; wheel rail ... See more keywords
A Two-Step Composite Time Integration Scheme for Vehicle-Track Interaction Analysis considering Contact Separation
Sign Up to like & getrecommendations! Published in 2019 at "Shock and Vibration"
DOI: 10.1155/2019/1212069
Abstract: The two-step composite time integration scheme is combined with the linear contact relation between the wheel and rail (termed the two-step method) to solve coupled vehicle-track dynamic problems. First, two coupled vehicle-track models with different… read more here.
Keywords: integration; vehicle track; step; two step ... See more keywords