Preview

Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya

Advanced search

Mathematical rationale of braking effectiveness with a constant pressure safety factor

https://doi.org/10.46973/0201-727X_2023_3_159

Abstract

Using methods of mathematical description and calculation, the advantage of implementing the braking curve of a passenger train is substantiated, ensuring a constant pressure safety factor, previously determined to ensure the same conditions for the property of wheel pairs throughout the entire braking period. The dependence of braking acceleration on this coefficient is derived. By solving integral equations for typical train parameters, the dependences of the distance traveled on speed (braking curve), braking acceleration on speed and braking time were constructed at a constant specified coefficient. These characteristics were compared with similar parameters when implementing other methods of braking control over the same braking distance: with constant acceleration and constant brake pressure (constant pressure in the brake line). It is shown the effectiveness of the proposed braking method in comparison with those described above.

About the Authors

S. P. Kruglov
Irkutsk State Transport University (ISTU)
Russian Federation

Sergey P. Kruglov - Chair «Automation of Production Processes», Doctor of Engineering Sciences, Professor.



P. Yu. Ivanov
Irkutsk State Transport University (ISTU)
Russian Federation

Pavel Yu. Ivanov - Chair «Electric Rolling Stock», Candidate of Engineering Sciences, Associate Professor.



A. A. Korsun
Irkutsk State Transport University (ISTU)
Russian Federation

Anton A. Korsun - Chair «Electric Rolling Stock», Postgraduate Student.



References

1. Rules of technical operation of railways of the Russian Federation. Approved by the Order of the Ministry of Transport of the Russian Federation dated December 21, 2010 No. 286. - URL: sudact.ru/law/prikaz-min-transa-rf-ot-21122010-n-286/pravila-tekhnicheskoi-ek-spluatatsii-zheleznykh-dorog (date of access: 09/18/2023).

2. Rules for maintenance of brake equipment and brake control of railway rolling stock. Approved by the Council for Railway Transport of the Commonwealth Member States (Protocol No. 60 dated May 6-7, 2014), by Order of the Ministry of Transport of the Russian Federation No. 151 dated 06.03.2014, 2019. - URL: files.stroyinf.ru/Data2/1/4293727/4293727582.pdf (date of access: 09/19/2023).

3. Rules of traction calculations for train work. Approved by the Order of JSC “Russian Railways” dated 12.05.2016 No. 867r as amended by the Order of JSC “Russian Railways” dated 09.02.2018 No. 182/p. -Moscow, 2016. - 516 p.

4. Locomotive equipment of the automatic braking control system of SOUTH-CM/485 trains. Operation manual. - Moscow: NPO SOUTH LLC, 2004. - URL: www.saut.ru/documents (date of access: 09/20/2023).

5. Universal system of driving electric locomotives of passenger traffic (USAVPP). Operation manual / AVP Technology LLC. - URL: www.avpt.ru/soprovozhde-nie/dokumentatsiya/rukovodstva (date of access: 09/22/2023).

6. Improving the efficiency of the braking system of passenger trains / P. Yu. Ivanov, A. I. Romanovsky, A. A. Khamnaeva [et al.] // Transport: science, technology, management. Scientific Information Collection. -2020. - No. 3. - P. 39-43. - DOI 10.36535/0236-19142020-03-6. - EDN DUWTCJ.

7. Ivanov, P. Yu. Existing methods of brake pressure control with increased efficiency / P. Yu. Ivanov, A. A. Korsun, D. O. Yemelyanov // Scientific interdisciplinary research: collection of articles of the XV International Scientific and Practical Conference, Saratov, June 10, 2021. - Moscow: KDU, Dobrosvet, 2021. -P. 28-36. - EDN JUYBDQ.

8. A mathematical model of the operation of the train braking system during braking, taking into account the dynamics of the friction coefficient of the pad on the wheel and the coupling with the rail in a computer environment / A. A. Korsun, P. Yu. Ivanov, S. P. Kruglov [et al.] // Bulletin of the Rostov State University of Railways. - 2022. - No. 2(86). - P. 104-113. - DOI 10.46973/0201-727X_2022_2_104. - EDN LNUDHW.

9. Algorithm of adaptive control by braking of passenger rolling stock / P. Yu. Ivanov, E. Yu. Dulsky, A. A. Korsun, D. V. Osipov // Transport: science, technology, management. Scientific Information Collection. - 2022. - No. 5. - P. 60-64. - DOI 10.36535/0236-1914-202205-11. - EDN LTBUFW.

10. Krylov, V. I. Automatic brakes of rolling stock : a textbook for technical schools of railway transport / V. I. Krylov, V. V. Krylov. - 3rd edition, reprint. and add. - Moscow : Transport, 1977. - 320 p.

11. Asadchenko, V. R. Automatic brakes of rolling stock : a textbook for universities of railway transport. - Moscow : Route, 2006. - 392 p.

12. Brychkov, Yu. A. Tables of indefinite integrals : a handbook / Yu. A. Brychkov, O. I. Marichev, A. P. Prudnikov. - Moscow : Nauka, 1986. - 192 p.

13. Electric locomotive EP1. Operating manual. Vol. 2. - Novocherkassk : PC NEVZ LLC, 2007. - 580 p.


Review

For citations:


Kruglov S.P., Ivanov P.Yu., Korsun A.A. Mathematical rationale of braking effectiveness with a constant pressure safety factor. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2023;(3):159-168. (In Russ.) https://doi.org/10.46973/0201-727X_2023_3_159

Views: 15

JATS XML


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 0201-727X (Print)