Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Petr Voltr"'
Autor:
Yalçın Özdemir, Petr Voltr
Publikováno v:
Journal of Applied Mathematics and Computational Mechanics, Vol 15, Iss 2, Pp 95-103 (2016)
Externí odkaz:
https://doaj.org/article/b6e49e88690a4648b0195e1304735af5
Autor:
Michael Lata, Petr Voltr
Publikováno v:
Transport, Vol 27, Iss 1 (2012)
The paper deals with adhesion experiments on an actual traction vehicle. An efficient and quite simple method was employed to detect dynamical effects occurring at the exceeding of the adhesion limit. Along with the disabled anti-slip protection syst
Externí odkaz:
https://doaj.org/article/905de3504a6f440f8bb123dceaa3f6d6
Autor:
Petr Voltr, Edwin Vollebregt
Publikováno v:
Vehicle System Dynamics. 61:309-317
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 234:1029-1040
This study deals with the validation of an anti-slip control method that is based on the acceleration of a wheel. The method uses the angular acceleration signal and a threshold value to prevent the wheel from a severe slip. Initially, the implemente
Autor:
Altan Onat, Petr Voltr
Publikováno v:
Journal of Intelligent Transportation Systems. 24:93-107
Model-based condition monitoring is an increasingly important area for rail transportation. The key elements of such condition monitoring methodologies are low-cost vehicle sensors and intelligent ...
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 232:2392-2405
Advanced antislip control methods are available these days. However, due to increasing requirements with regard to demand and emerging technologies in the field of railways, further research on antislip control is required. Therefore, in this study,
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 232:1686-1702
Monitoring the conditions of railway vehicle systems plays an important role in the maintenance of safety and performance of railway vehicles. Rolling radius is one of the properties that should be monitored continuously for the predictive maintenanc
Autor:
Petr Voltr
Publikováno v:
Applied and Computational Mechanics, Vol 11, Iss 1, Pp 69-80 (2017)
To represent thewheel-rail contact in numerical simulations of rail vehicles, simplified models (Fastsim, Pola´ch etc.) are usually employed. These models are designed for steady rolling only, which is perfectly suitable in many cases. However, it i
Autor:
Gerald Trummer, Petr Voltr, L.E. Buckley-Johnstone, Roger Lewis, Alexander Meierhofer, Klaus Six
Publikováno v:
Tribology International. 109:409-415
A computationally efficient engineering model to predict adhesion in rolling contact in the presence of water is presented which may be implemented in multibody dynamics software or in braking models to study train performance and braking strategies.
Autor:
Altan Onat, Petr Voltr
Publikováno v:
Simulation Modelling Practice and Theory. 99:102026
Adhesion and creep force models play an important role in the realistic simulation of railway vehicle systems. These models are mainly based on experiments and they are determined heuristically. In previous studies, no metric is defined to demonstrat