Results 21 to 30 of about 7,227,198 (175)

Parameter influence analysis and optimization of wheel–rail creepage characteristics in high-speed railway curves [PDF]

Railway Sciences
Purpose – To investigate the influence of vehicle operation speed, curve geometry parameters and rail profile parameters on wheel–rail creepage in high-speed railway curves and propose a multi-parameter coordinated optimization strategy to reduce wheel ...
Bolun An, Jiapeng Liu, Guang Yang, Feng shou Liu, Tong Shi, Ming Zhai   +5 more
doaj   +1 more source

Development and Validation of a Wheel Wear and Rolling Contact Fatigue Damage Model [PDF]

, 2013
This paper summaries the development of a damage model to predict the deterioration rates of the wheel tread in terms of wear and rolling contact fatigue (RCF) damage.
Bevan, Adam, Eickhoff, Bridget, Molyneux-Berry, Paul, Burstow, Mark   +3 more
core   +1 more source

Comparison of Non-elliptic Contact Models [Elektronisk resurs] : Towards Fast and Accurate Modelling of Wheel-Rail Contact

, 2012
The demand to investigate and predict the surface deterioration phenomenain the wheel-rail interface necessitates fast and accurate contact modelling.During the past twenty years, there have been attempts to determine more realisticcontact patch and ...
S. Sichani, Matin,, Berg, Mats,, Enblom, Roger,   +2 more
core   +9 more sources

Experimental and theoretical investigation of railway wheel squeal [PDF]

, 2007
The tangential contact forces that arise at the interface between the wheel of a railway vehicle and the rail provide all the traction, braking, and guidance required by the vehicle.
Hsu, S.S., Allen, P.D., Jones, C., Huang, Z., Huang, Zhenyu, Thompson, D.J., Jones, C.J.C., Thompson, D., Hsu, S., Xie, G., C J C Jones, Iwnicki, S., D J Thompson, Jones, Christopher J.C., Iwnicki, Simon D., G Xie, Iwnicki, S.D., Allen, Paul, Xie, Gang, Hsu, Sin Sin, P D Allen, S S Hsu, S D Iwnicki, Thompson, David J., Z Huang   +24 more
core   +1 more source

Interval Uncertainty Analysis for Wheel–Rail Contact Load Identification Based on First-Order Polynomial Chaos Expansion

Mathematics
Traditional methods for identifying wheel–rail contact loads are based on deterministic models, in which the uncertainties such as material inhomogeneity and geometric tolerance are not considered. For wheel–rail contact load analysis with uncertainties,
Shengwen Yin, Haotian Xiao, Lei Cao
doaj   +1 more source

Modelling and simulation of dynamic wheel-rail interaction using a roller rig [PDF]

, 2012
The interaction between the wheel and rail greatly influences the dynamic response of railway vehicles on the track. A roller rig facility can be used to study and monitor real time parameters that influence wheel-rail interaction such as wear, adhesion,
Gu, Fengshou, Pislaru, Crinela, Ball, Andrew, Gu, F., Anyakwo, A., Ball, A., Anyakwo, Arthur, Pislaru, C.   +7 more
core   +1 more source

Wheel surface damage: relating the position and angle of forces to the observed damage patterns [PDF]

, 2012
A new method of presenting simulated wheel/rail forces and relating these to the observed wheel damage has been developed. This indicates a good correlation between the predicted forces and the regions of the wheel where damage is observed in practice.
Bevan, Adam, Molyneux-Berry, Paul
core   +1 more source

Geometry and stiffness optimization for switches and crossings, and simulation of material degradation [PDF]

, 2010
A methodology for simulating wear, rolling contact fatigue, and plastic deformation for a mixed traffic situation in switches and crossings (S&C) has been developed.
Kassa, Elias,, Ekh, Magnus,, Nicklisch, Dirk,, Iwnicki, Simon,, M Ekh, Ekh, Magnus, Ekh, M., Nicklisch, D., J Nielsen, Nielsen, J., E Kassa, S Iwnicki, Iwnicki, S.,, Gebretsadik, Elias Kassa,, Nielsen, Jens,, Nielsen, Jens C. O., Nielsen, Jens, Kassa, Elias, D Nicklisch, Kassa, E., Nicklisch, D.,, Iwnicki, S.   +21 more
core   +1 more source

Autism spectrum disorder assessment in cerebral palsy and other early‐onset motor conditions: A scoping review

Developmental Medicine &Child Neurology, EarlyView.
Abstract Aim To map diagnostic procedures and standardized instruments reportedly used to identify autism spectrum disorder (ASD) in people with cerebral palsy or other early‐onset motor conditions (EOMC) including Rett syndrome and muscular dystrophy.
Olga Laporta‐Hoyos, Marina Fernández‐Andújar, Lee Reid, Marta Oporto‐Alonso, Júlia Ballester‐Plané, América Carrascal‐Zuluaga, María Gutiérrez‐del Hoyo, Jacqui Ferraiolo, Magnus Påhlman, Kate Himmelmann, Somer Bishop, Roser Pueyo   +11 more
wiley   +1 more source

The Wheel–Rail Contact Force for a Heavy-Load Train Can Be Measured Using a Collaborative Calibration Algorithm

Information
The wheel–rail contact force is a crucial indicator for ensuring the secure operation of a heavy-load train. However, obtaining the real-time wheel–rail contact force of a heavy-load train is a challenging task as, due to safety considerations, it is not
Tianning Wen, Jing He, Changfan Zhang, Jia He   +3 more
doaj   +1 more source