Study of the Interaction of the Railway Track and the Rolling Stock Under Conditions of Accelerated Movement
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
ENG: Comprehensive studies of the interaction of the railway track and the investigated rolling stock under accelerated conditions have been carried out. The basis of the research was to obtain and substantiate the process of stress state, force interaction of the railway track and the rolling stock under conditions of accelerated movement. Introduction of the new rolling stock into continuous operation is a serious task that must be solved comprehensively. The implementation of this direction significantly affects the reliability of the elements of the railway track. Within the framework of the research, the approach was used that takes into account theoretical and experimental parts of the research using the methodology of prof. O. P. Yershkov. As a result of the studies, average stress values were established: in rails, they variate within the range 44.37...70.99 MPa; in the sleeper, they reach 0.78 MPa; in the ballast layer, they have 0.13 MPa; in the body of the subgrade, they reach 0.04 MPa, which is significantly less than the maxima allowable values. While speed change from 140 to 160 km/h, the values of the studied parameters decrease: vertical force (9.39 %), lateral forces (19.79 %); stresses in the edge of the rail flange (15.86 %); stresses in the edge of the rail head (16.67 %); stresses in the neck of the rail (8.74 %). The obtained results made it possible to form trends and recommendations on the feasibility of further increasing speeds development. At the same time, this made it possible to substantiate in more detail the operation of the railway track in the case of accelerated movement.
Description
О. Hubar: ORCID 0000-0001-8683-5372; R. Markul: ORCID 0000-0002-7630-8963; О. Tiutkin: ORCID 0000-0003-4921-4758; V. Andrieiev: ORCID 0000-0002-0862-2790
Keywords
railway, railway track, rolling stock, КККГ, КПБД, КМТ
Citation
Hubar O., Markul R., Tiutkin O., Andrieiev V., Arbuzov M., Kovalchuk O. Study of the Interaction of the Railway Track and the Rolling Stock Under Conditions of Accelerated Movement. IOP Conference Series: Materials Science and Engineering. 2020. Vol. 985 : 15th Intern. Sci. and Techn. Conf. "Problems of the railway transport mechanics" (PRTM 2020) 27–29 May 2020, Dnipro, Ukraine. Dnipro, 2020. DOI: 10.1088/1757-899X/985/1/012007.