Ústav železničních konstrukcí a staveb
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The Comparison of Dynamic Effects Acting in the Common Crossing and Switch Unit of a Turnout
(University of Zilina, 2022-07-04)The paper presents an analysis and comparison of selected dynamic parameters in the common crossing and switch unit of a railway turnout. The paper includes a description of the measurement methodology, the report of ... -
Assessment of dynamic parameters of rail fastening
(University of Zilina, 2016-08-15)The paper is devoted to the analysis and comparison of the dynamic parameters of the rail fastening used in a standard way in the core railway network of the Czech Republic, i.e. the elastic rail fastening Vossloh W 14 and ... -
Sensitivity enriched multi-criterion decision making process for novel railway switches and crossings - a case study
(Springer, 2021-01-26)Background: Despite their important role in railway operations, switches and crossings (S&C) have changed little since their conception over a century ago. It stands now that the existing designs for S&C are reaching their ... -
The use of the Hilbert Huang transformation in the testing of railway structures
(Studio D - akustika, 2021-09-29)The aim of the paper is to introduce a less used method for the evaluation of non-stationary and especially transient phenomena in railway structures to the wider professional public. This method may find wide application ... -
Design parameters of buffer stops
(Czech Technical University in Prague, 2016-10-30)Paper discuses reasons of building buffer stops and situations that may occur in railway station leading to build safety tracks. Also discusses parameters of buffer stops that enter its design, such as collision speed and ... -
Friction buffer stop design
(Czech Technical University in Prague, 2017-09-01)Friction buffer stops are the favoured construction of buffer stop, mainly due to its high resistance and variety of layout. Last but not least is its manner of deceleration induced upon impact and during the braking what ... -
Monitoring of Track Sections with Long-pitch Corrugation
(Czech Technical University in Prague, 2016-05-04)The focus of this paper lies on monitoring of the track sections with rail corrugations caused by wheel sliding. Short waves on the running surface of the rail head on low rail are typical for this defect. Long-pitch ... -
Neural Network-Based Train Identification in Railway Switches and Crossings Using Accelerometer Data
(Hindawi, 2020-11-24)This paper aims to analyse possibilities of train type identification in railway switches and crossings (S&C) based on accelerometer data by using contemporary machine learning methods such as neural networks. That is a ... -
Kvalita geometrie koleje v čase
(ECON publishing, 2020-01-23)Geometrické parametry kolejí se měří různými typy diagnostických prostředků, které se od sebe liší především zatížením, kterým během měření působí na železniční trať. Měření jednotlivých parametrů probíhá buď kontaktně, ... -
Vývoj kvality geometrických parametrů koleje
(ECON publishing, s.r.o., 2019-01-31)Kvalita geometrických parametrů koleje je základní veličinou využívanou při hodnocení aktuálního stavu železničních tratí. Důkladné vyhodnocení naměřených dat je nezbytné k efektivnímu využívání prostředků na údržbu a ... -
Programování příčných řezů železniční trati
(České vysoké učení technické v Praze, 2020-09-16)Programy pro kreslení příčných řezů železniční trati mají za úkol snížit množství repetitivní práce, při níž hrozí vznik zbytečných chyb. Jejich výhodou je možnost opakovaného kreslení příčných řezů a následná optimalizace ... -
Vývoj kvality geometrie koleje
(České vysoké učení technické v Praze, 2019-09-17)Článek se zabývá vyhodnocením vývoje kvality geometrie koleje v úseku koridorové železniční trati č. 316A Nedakonice – Břeclav. Vývoj kvality geometrie koleje je hodnocen pomocí lineární regrese směrodatnými odchylkami ... -
Kvalita koleje v průběhu času
(ECON publishing, s.r.o., 2018-01-25)Článek se zabývá možnostmi zkoumání vývoje kvality koleje v průběhu času. Kvalita koleje se hodnotí podle hodnot jednotlivých geometrických parametrů koleje. Kolej se hodnotí buď úsekově, nebo lokálně. Při lokálním způsobu ... -
Quality of the Track Geometry Progress
(TECHNICAL UNIVERSITY OF KOŠICE, 2018-04-26)Track geometry tends to deteriorate over time under the influence of traffic load. This means that the track tamping needs to be carried out when the track geometry exceeds defined limits. Better understanding of this ... -
Train Type Identification at S&C
(Hindawi, 2020-11-24)The presented paper concerns the development of condition monitoring system for railroad switches and crossings that utilizes vibration data. Successful utilization of such system requires a robust and efficient train type ... -
Nondestructive Testing of Advanced Concrete Structure during Lifetime
(Hindawi Publishing Corporation, 2015-07-08)The paper reports on measurements and analysis of the measurements during hardening and drying of specimens using selected acoustic nondestructive testing techniques. An integrated approach was created for better understanding ... -
Assessment of rail long-pitch corrugation
(IOP Publishing, 2017-09-20)The paper focuses on defects of the running surface of the rail, namely the rail corrugation defect and specifically long-pitch corrugation in curves of small radii. These defects cause a shorter life of the rails, greater ... -
Using acoustic emission methods to monitor cement composites during setting and hardening
(MDPI AG, 2017-04-28)Cement-based composites belong among the basic building materials used in civil engineering. Their properties are given not only by their composition but also by their behaviour after mixing as well as by the methods of ... -
Under Sleeper Pads in Switches & Crossings
(IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND, 2017-09-21)Under sleeper pads (USPs) have been installed in the Czech railway lines since 2007 into two trial sections in switches and crossings and in a trial section with the aim to reduce rail pitch corrugation. The basic motivation ... -
Flexure response of thermal loaded concrete specimens by acoustic emission method
(EDP Sciences – Web of Conferences, 2017-05-24)The response to fire of concrete structural members depends on the thermal, mechanical, and deformation properties of concrete. These properties vary significantly with temperature depending on the composition and ...
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