Identification of the railway reconstruction parameters at imposition of high speed traffic on the existing lines
| Autor: | Irina Kravchenya, Mykola I. Berezovyi, Yevhen B. Demchenko, Iryna Lebid, Nataliia Luzhanska, Tatyana Dubrovskaya |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
050210 logistics & transportation
Identification (information) lcsh:TA1-2040 Computer science 0502 economics and business 05 social sciences 0211 other engineering and technologies 021107 urban & regional planning 02 engineering and technology Data mining lcsh:Engineering (General). Civil engineering (General) computer.software_genre computer |
| Zdroj: | MATEC Web of Conferences, Vol 294, p 05003 (2019) |
| ISSN: | 2261-236X |
| DOI: | 10.1051/matecconf/201929405003 |
| Popis: | The problems of railroad design technical reconstruction aimed at ensuring train protection in introduction of high-speed traffic on the rail lines have been addressed. The description of railroad technical system with certain specific features has been proposed. The pair of mutually dual problems regarding the optimal reconstruction of railway curves for raising train speeds at minimal capital investments has been addressed. The problem of determining the optimal speeds of trains of each category under optimum outer rail cant, increase of the unbalanced acceleration value, compliance with the condition of uniform load on rail tracks, comfortable carriage of passengers, in which reduced costs on increased speeds in curved tracks will be minimal has been formulated. To achieve the goals of the study, mathematical optimization techniques and algorithms of analysis of the rail lines of different nature are used. This, by finding and value engineering optimization, allows to minimize high-value and lengthy procedures of physical simulation. As a problem-solving technique, Lagrange multiplier method and its applicability have been proposed. Numeral solution to the problem of selection of certain stretches for increasing rolling stock speeds on operating lines without reconstruction or with minimum expenses on reconstruction of contour of track has been reviewed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|