Results 31 to 40 of about 190,590 (316)

Statistical Modelling of Wear and Damage Trajectories of Railway Wheelsets [PDF]

, 2016
This paper discusses the use of Linear Mixed Models (LMM) and Generalized Linear Mixed Models (GLMM) to predict the wear and damage trajectories of railway wheelsets for a fleet of modern multiple unit trains.
Andrade, Asplund, Bevan, Ekberg, Fahrmeir, Ferreira, Freitas, Galecki, Jiang, Lin, Lin, Lindsey, Molyneux-Berry, Müller, Nia, Pascual, Pombo, Wang   +17 more
core   +1 more source

A practical methodology to select fretting palliatives: Application to shot peening, hard chromium and WC-Co coatings [PDF]

, 2005
Considered as a plague for numerous industrial assemblies, fretting, associated to slight oscillatory displacement, is encountered in all quasi-static contacts subjected to vibration.
Fouvry, S., Kubiak, K., Marechal, A.M.
core   +1 more source

Influence mechanism of grinding surface quality of 20CrMnTi steel on contact failure

Scientific Reports
To reveal the influence mechanism of the grinding surface quality of 20CrMnTi steel components on the tribological characteristics and contact fatigue performance, accelerated tests for sliding friction wear and fatigue damage were carried out ...
Long Wang, Lijun Yang, Liuying Wang, Xiujian Tang, Gu Liu   +4 more
doaj   +1 more source

Investigation into rolling contact fatigue and wear of high-speed train wheels on long steep slope track

机车电传动, 2023
A rolling contact fatigue prediction model and a wear prediction model were established to analyze the influence of slope and speed on the rolling contact fatigue and wear of electric multiple unit (EMU) wheels on long steep slope track.
ZHOU Chen, ZHENG Jing, QIAO Qingfeng, ZOU Xiaolong, CHEN Jiaming, TAO Gongquan   +5 more
doaj  

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler, Vivian Maas, Arian Taheri Amin, Jennifer Faber, Tamara Schaprian, Katharina Hill, Matthis Synofzik, Lisa H. Graf, Heike Jacobi, Manuela Lima, Ana F. Ferreira, Bart P. van de Warrenburg, Ilse H. J. Willemse, Dagmar Timmann, Andreas Thieme, Paola Giunti, Hector Garcia‐Moreno, Magda M. Santana, Jeannette Hübener‐Schmid, Elin H. Davies, Thomas Klockgether   +20 more
wiley   +1 more source

Wear and Fatigue of Railway Track Caused by Contamination, Sanding and Surface Damage [PDF]

, 2003
The wheel rail contact operates in an arduous environment. Damage to the surface of either component is possible during manufacture, installation, or operation.
Dwyer-Joyce, R.S., Gao, N., Grieve, D.G., Lewis, R.   +3 more
core  

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Fatigue damage analysis of a Kaplan turbine model operating at off-design and transient conditions

Structural Health Monitoring, 2023
The current renewable energy market forces hydraulic turbines to operate for longer periods of time at off-design and transient conditions. Their life expectancy is then decreased due to the wear provoked by flow instabilities and stochastic flow ...
R. Roig, X. Sánchez-Botello, O. de la Torre, Xavier Ayneto, C. Högström, B. Mulu, X. Escaler   +6 more
semanticscholar   +1 more source

Effects of Contact Load and Torsion Angle on Crack Propagation Behaviors of Inclined Crossed Steel Wires during Tension–Torsion Fretting Fatigue in Acid Solution

Applied Sciences, 2021
The hoisting rope in the kilometer-deep coal mine exhibits the tension–torsion fretting fatigue behaviors of inclined crossed steel wires in acid solution.
Dagang Wang, Daozhu Song, Magd Abdel Wahab   +2 more
doaj   +1 more source

Identification of contact regimes in mechanical components for the evaluation of fretting damage [PDF]

, 2013
In this work the regimes of contact in misaligned crowned splined couplings have been analyzed. Experimental tests have been performed in order to identify if fretting damage on the components appears as fretting wear or fretting fatigue.
Cuffaro, Vincenzo, Curà, F., Mura, Andrea   +2 more
core