Analysis of high frequency vibration of tram monobloc wheel
Journal Title: Archives of Transport - Year 2016, Vol 39, Issue 3
Abstract
European Environmental Agency estimates that about 120 million people in the EU (over 30% of the total population) are exposed to traffic noise above 55 Ldn dB. It is estimated that 10% of the EU population is exposed to noise associated with the rail traffic. The two main sources of traffic noise comes from vehicles engines and the noise generated in the contact between the wheel and the road. In the latter the considerable part the noise is due to phenomena occurring in a wheel tram – rail system. Therefore, the problem of reducing the noise generated by railway vehicles is the subject of many studies, both experimental and theoretical. Commonly used wheel trams so called "resilient wheels" are equipped with layer made of a resilient material, e.g. rubber, between the tread and the wheel disc. But the monobloc tram wheel is the standard design against which should be carried out the studies on reduction of noise in wheel-rail system. This paper presents the results of calculations related to eigenforms, eigenfrequencies and Frequency Response Function of a three-dimensional model of a monobloc tram wheel. The calculations were carried out using the finite element method. Vibration analysis was performed for the range to 5 kHz. Analysis carried out has shown that the wheel tread plays a more important role in the generation of high-frequency vibrations.<br/><br/>
Authors and Affiliations
Bogdan Sowiński
Keywords
Related Articles
- EP ID EP189778
- DOI 10.5604/08669546.1225450
- Views 137
- Downloads 0
Development of a statistically-based methodology for analyzing automatic safety treatments at isolated high-speed signalized intersections
Crashes at isolated rural intersections, particularly those involving vehicles traveling perpendicularly to each other, are especially dangerous due to the high speeds involved. Consequently, transportation agencies are...
A New Concept of Dual Fuelled SI Engines Run on Gasoline and Alcohol
The paper discusses tests results of dual-fuel spark ignition engine with multipoint injection of alcohol and gasoline, injected in area of inlet valve. Fuelling of the engine was accomplished via prototype inlet system...
Non-parametric machine learning methods for evaluating the effects of traffic accident duration on freeways
Traffic accidents usually cause congestion and increase travel-times. The cost of extra travel time and fuel consumption due to congestion is huge. Traffic operators and drivers expect an accurately forecasted accident d...
AUTOMATIC TARGET RECOGNITION OF COMPLEX INTERNAL STRUCTURE
The paper presents methods of automatic target recognition from images with complex internal structure. Recognition methods proposed are based on the Fourier transform properties. These methods make it possible to bring...
Object-oriented programming as a method for developing software in rail-traffic-control computer systems
The paper focuses on a new method for specifying safe software for rail traffic control systems. The presented method is particularly convenient to define typical devices and subsystems used in traffic control, defined a...