NUMERICAL INVESTIGATIONS OF DYNAMIC TRANSVERSE FORCES IN CURVES, IN THE ZONES OF RAILS VARIETIES
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 179, Issue 13
Abstract
The purpose of the work is to identify, by numerical methods, the causes of intensive lateral wear of rails and other bounces of the track in curves of small radius. The research has been carried out for the most mass type of rolling stock of four-wheel freight cars on the carriages TsNII-Сh3, whose transportation is 75-90% of freight tight sections of the track. Consequently, the effect of such cars is the main causes of these disorders. In order to solve the problem in the work, the influence of the dynamic processes of the interaction of the track and the rolling stock on the following parameters of the road plan was studied: - the influence of the curves' radii, the outstanding accelerations and the width of the track; influence of local smooth and smooth inequalities of the track in terms of. In this work was to study the effect on the dynamic processes of interaction track and rolling stock the following characteristics of the way the plan: the effect of curve radius, outstanding acceleration and track width; the impact of local butt and smooth irregularities in terms of the way. The results of numerical studies. A mathematical model of the spatial dynamic system "crew-path" has been used to perform research. It is based on the design scheme of the path, in the form of beams of long rails, which are based on many elastic-dissipative-sleepers support with non-linear characteristics. This model is implemented in the program Mathcad system. Determined by the direction and lateral forces when driving on curved four-freight wagons 12-1000 model. Change settings such as the curves of the track radii, outstanding acceleration values, the value of the external elevation of rails and track width. Furthermore, it was examined the influence of faults such as unevenness in isolated smooth plane "corners" in the joints, and short isolated irregularities. The obtained data was determined total wear factor of the horizontal rail heads, allows for the impact on the path and the condition of the contacting wheel flanges and rails.
Authors and Affiliations
Aleksandr Darenskiy, Tuley Yuzef, Yaroslav Leibuk
Keywords
Related Articles
- EP ID EP415285
- DOI 10.18664/1994-7852.179.2018.147716
- Views 50
- Downloads 0
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