ROLLER RIG TESTING AT THE CZECH TECHNICAL UNIVERSITY
Journal Title: Наука та прогрес транспорту - Year 2016, Vol 0, Issue 4
Abstract
Purpose. Although the advancements in computer simulation technology have paved way to provide very reliable simulation results, track tests still play an essential role during the process of development and homologation of any railway vehicle. On the other hand, track tests depend on weather conditions, are difficult to organize and are not suitable for testing vehicles in critical situations. On a roller rig, the tested vehicle is longitudinally fixed and a track is replaced by rotating rollers. Such device offer testing of railway vehicle running dynamics in safe and stable laboratory environment. The purpose of an article is to investigate and describe roller rig testing at the Czech technical university in Prague (CTU). Methodology. In the paper it is shown the history of development of the scaled CTU roller rig from the earlier stages until the current projects for which the CTU roller rig is utilized for. The current design of the experimental bogie, roller rig, sensors instrumentation and types of experiments conducted at the CTU roller rig are described in more detail. Findings. Although the differences in vehicle behaviour on a track and a scaled model on a roller rig are not negligible, scaled roller rig experiments are found as a relatively inexpensive way for verification and demonstration of computer simulations results. They are especially useful for verification of multibody system simulations (MBS) of entirely new running gear concepts. Originality. The CTU roller rig is currently used for the experiments with active controlled wheelset guidance. According to simulations results published in many papers such systems offer, in principle, better performance compared to conventional passive vehicles. However, utilization and testing of active controlled wheelset guidance on vehicles is still rare. CTU roller rig serves as a tool to verify computer simulations and demonstrate benefits of active wheelset guidance. Practical value. Experiments conducted on the CTU roller rig confirm the possibility to significantly influence railway vehicle running dynamics by actively controlled wheelset guidance. Such concept could be regarded as a possible and likely approach for the design of future railway vehicles running gears.
Authors and Affiliations
J. Kalivoda, P. Bauer
Keywords
Related Articles
- EP ID EP225804
- DOI 10.15802/stp2016/77994
- Views 88
- Downloads 0
STABILITY OF MOTION OF RAILWAY VEHICLES DESCRIBED WITH LAGRANGE EQUATIONS OF THE FIRST KIND
Purpose. The article aims to estimate the stability of the railway vehicle motion, whose oscillations are described by Lagrange equations of the first kind under the assumption that there are no nonlinearities with disco...
EXPERIMENTAL STUDY OF THE DYNAMICS OF CENTRIFUGAL CASTING MACHINES FOR PRODUCTION OF MILL ROLLS
Purpose. The main purpose of experimental studies is to establish the adequacy of the developed mathematical models of machine fluctuations and the actual parameters of machine vibration. Almost all casting machines for...
DEVELOPMENT OF PASSENGER TRAFFIC SERVICE QUALITY MANAGEMENT SYSTEM OF RAILWAY ENTERPRISES
Purpose. At the present stage of development of Ukraine’s economy, passenger traffic service quality management of railway enterprises became one of the main tasks to ensure their efficient operation. In terms of railway...
ПЕРСПЕКТИВНАЯ ТРАНСПОРТНО-ЭНЕРГЕТИЧЕСКАЯ СИСТЕМА НА ОСНОВЕ ИНТЕГРАЦИИ МАГНИТОЛЕВИТАЦИОНННОЙ ТЕХНОЛОГИИ И РАСПРЕДЕЛЕННОЙ ФОТОЭЛЕКТРИЧЕСКОЙ ЭЛЕКТРО-СТАНЦИИ
Цель. Основной целью исследования является совершенствование магнитолевитационной технологии с использованием электродинамического подвеса и обеспечение ее функционирования на основе экологически рациональных энергосисте...
FROM EXPERIENCE OF CONDUCTING COMPARATIVE TESTS OF LOESS SOILS BY MANUAL DYNAMIC PROBES OF DIFFERENT CONSTRUCTIONS
Purpose. To determine the parameters of soils of loess formation, which are considered difficult in the construction or operation of housing and industrial facilities it is provided an analysis of the obtained field test...