Determination of the type and the length for the transition curves on the directions of high-speed train operation
In many countries around the world, a cubic parabola is used as transition curves in a simplified form. Today, the properties of many mathematical curves are well studied, which can be used as transition curves. The object of research is the process of restructuring transition curves when organizing...
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| Format: | Article |
| Language: | English |
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Széchenyi István University
2022-05-01
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| Series: | Acta Technica Jaurinensis |
| Subjects: | |
| Online Access: | https://acta.sze.hu/index.php/acta/article/view/658 |
| _version_ | 1828809686483206144 |
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| author | Mykola Kurhan Dmytro Kurhan Marina Husak Nelya Hmelevska |
| author_facet | Mykola Kurhan Dmytro Kurhan Marina Husak Nelya Hmelevska |
| author_sort | Mykola Kurhan |
| collection | DOAJ |
| description | In many countries around the world, a cubic parabola is used as transition curves in a simplified form. Today, the properties of many mathematical curves are well studied, which can be used as transition curves. The object of research is the process of restructuring transition curves when organizing high-speed trains operation. The use of modern means of mathematical modelling allows to add a number of dynamic characteristics for evaluation parameters of motion in the curved sections of the tracks. Thus, with an increase in speed for transition curves, both the values of unbalanced acceleration and its change in time, and also the velocity attenuation of oscillations of rolling stock when moving from a transition curve to a circular curve or to a direct section. On the basis of the conducted research, it has been found that when increasing the speed of the vehicle movement in the range from 120 to 200 km/h, the length of the stabilization section increases at the output of the curvature by an average of 20 m for every 40 km/h. The analysis showed that with correctly set parameters of transition curves, which correspond to the maximum speed of movement and radius of a circular curve, the strength and reliability of the bearing elements in the structure of the permanent way and the travel comfort are fully ensured. |
| first_indexed | 2024-12-12T09:00:32Z |
| format | Article |
| id | doaj.art-0c76d47beda74927aa2e747442c16a0b |
| institution | Directory Open Access Journal |
| issn | 2064-5228 |
| language | English |
| last_indexed | 2024-12-12T09:00:32Z |
| publishDate | 2022-05-01 |
| publisher | Széchenyi István University |
| record_format | Article |
| series | Acta Technica Jaurinensis |
| spelling | doaj.art-0c76d47beda74927aa2e747442c16a0b2022-12-22T00:29:51ZengSzéchenyi István UniversityActa Technica Jaurinensis2064-52282022-05-0115211712410.14513/actatechjaur.00658586Determination of the type and the length for the transition curves on the directions of high-speed train operationMykola Kurhan0https://orcid.org/0000-0002-8182-7709Dmytro Kurhan1https://orcid.org/0000-0002-9448-5269Marina Husak2https://orcid.org/0000-0001-8187-7792Nelya Hmelevska3https://orcid.org/0000-0002-2360-8671Department of Transport Infrastructure, Dnipro National University of Railway Transport named after Academician V. Lazaryan, 49010, Dnipro, Ukraine Department of Transport Infrastructure, Dnipro National University of Railway Transport named after Academician V. Lazaryan, 49010, Dnipro, Ukraine Department of Transport Infrastructure, Dnipro National University of Railway Transport named after Academician V. Lazaryan, 49010, Dnipro, Ukraine Department of Transport Infrastructure, Dnipro National University of Railway Transport named after Academician V. Lazaryan, 49010, Dnipro, Ukraine In many countries around the world, a cubic parabola is used as transition curves in a simplified form. Today, the properties of many mathematical curves are well studied, which can be used as transition curves. The object of research is the process of restructuring transition curves when organizing high-speed trains operation. The use of modern means of mathematical modelling allows to add a number of dynamic characteristics for evaluation parameters of motion in the curved sections of the tracks. Thus, with an increase in speed for transition curves, both the values of unbalanced acceleration and its change in time, and also the velocity attenuation of oscillations of rolling stock when moving from a transition curve to a circular curve or to a direct section. On the basis of the conducted research, it has been found that when increasing the speed of the vehicle movement in the range from 120 to 200 km/h, the length of the stabilization section increases at the output of the curvature by an average of 20 m for every 40 km/h. The analysis showed that with correctly set parameters of transition curves, which correspond to the maximum speed of movement and radius of a circular curve, the strength and reliability of the bearing elements in the structure of the permanent way and the travel comfort are fully ensured.https://acta.sze.hu/index.php/acta/article/view/658high-speed trainrailwayrailway curvetransition curves |
| spellingShingle | Mykola Kurhan Dmytro Kurhan Marina Husak Nelya Hmelevska Determination of the type and the length for the transition curves on the directions of high-speed train operation Acta Technica Jaurinensis high-speed train railway railway curve transition curves |
| title | Determination of the type and the length for the transition curves on the directions of high-speed train operation |
| title_full | Determination of the type and the length for the transition curves on the directions of high-speed train operation |
| title_fullStr | Determination of the type and the length for the transition curves on the directions of high-speed train operation |
| title_full_unstemmed | Determination of the type and the length for the transition curves on the directions of high-speed train operation |
| title_short | Determination of the type and the length for the transition curves on the directions of high-speed train operation |
| title_sort | determination of the type and the length for the transition curves on the directions of high speed train operation |
| topic | high-speed train railway railway curve transition curves |
| url | https://acta.sze.hu/index.php/acta/article/view/658 |
| work_keys_str_mv | AT mykolakurhan determinationofthetypeandthelengthforthetransitioncurvesonthedirectionsofhighspeedtrainoperation AT dmytrokurhan determinationofthetypeandthelengthforthetransitioncurvesonthedirectionsofhighspeedtrainoperation AT marinahusak determinationofthetypeandthelengthforthetransitioncurvesonthedirectionsofhighspeedtrainoperation AT nelyahmelevska determinationofthetypeandthelengthforthetransitioncurvesonthedirectionsofhighspeedtrainoperation |