DOI: https://doi.org/10.15802/stp2020/199515

INVESTIGATION OF THE GEOMETRIC PARAMETERS OF THE BRAKE PADS OF FREIGHT CARS UNDER HAZARDOUS WEAR

V. G. Ravlyuk, I. M. Afanasenko, M. G. Ravliuk

Abstract


Purpose. This study aims to determine the geometric parameters of the brake pads of freight cars under hazardous wear. Methodology. A set of operational and theoretical studies concerning the occurrence of hazardous wear, which changes the geometric parameters of the useful contact area of the brake pads of freight cars at different established gaps between the pad and the wheel, which significantly impairs the effectiveness of train braking. Using the collected statistical material, computer mathematical modeling of the upper hazardous wear at different gaps was performed and the negative factors affecting the brake system were identified. MathCAD and AutoCAD software was used. Findings. As a result of inspections of the mechanical part of the brakes, attention was paid to the abnormal wear of the brake pads of the freight cars, which is formed by the fact that the common gravity center of the pad and the shoe, placed on the pendular suspension, do not coincide with the center of the hole in brake beam king post with any pads. In order to investigate possible causes of abnormal wear of the brake pads, their real images and theoretical schemes are given, which allow to establish the causes of the formation of abnormal wear of the pads at different gaps between the pad and the wheel and to determine their change of geometrical parameters that affect the useful contact area. When comparing the results of calculations according to the coordinate method performed in the MathCAD software environment and the graphic method (in AutoCAD), for determining the geometric parameters of the formation of the upper hazardous pad wear, depending on the regulatory pad wear between the wheel and the brake pad, it is theoretically proved that the error between them does not exceed 5–7%. Originality. For the first time, the principles of the methodology for determining the geometric parameters of the useful contact area of the pads with the formation of upper hazardous wear, depending on the gap between the wheel and the brake shoe, were formulated using coordinate and graphical methods. Practical value. It is advisable to apply the results of the research obtained in the work in the design and technological departments and bureaus when designing both mechanical brake systems for the undercarriage of innovative cars and for improvement of the cars currently operated at the railways.


Keywords


brake shoe; car; brake beam; abnormal wear; method; analysis; geometric parameters; wear; wheel; gap

References


Analiz stanu bezpeky rukhu pojizdiv na zaliznycjakh Ukrajiny za 2017 rik. (2017). Gholovne upravlinnja vaghonnogho ghospodarstva. Kyiv. (іn Ukrainian)

Blokhin, Y. P., Alpysbaev, K. T., & Panasenko, V. Y. (2012). Telezhki ZK1 poluvagonov, postroennykh v KNR. Vagonnyiy park, 9(66), 12-14. (in Russian)

Vlasova, A. M. (2017). Matematika s MathCad. Ekaterinburg: UrFU. (in Russian)

Instruktsiia z ekspluatatsii halm rukhomoho skladu na zaliznytsiakh Ukrainy: TsT-TsV-TsL-0015, No. 264-Ts. (2004). Kyiv. (іn Ukrainian)

Instrukcija z remontu ghaljmivnogho obladnannja. CV-CL-CT-0013 No. 160. (2005). Kyiv. (In Ukrainian)

Koptovec, A. N., Shirin, L. N., Shlyahov, E. M., Denishchenko, A. V., Zil, V. V., & Yavorskaya, V. V. (2017). Modelirovanie rabochih processov treniya v kolodochnom kolesnom tormoze shahtnyh lokomotivov: Monografiya. Dnipro: Gosudarstvennoe vysshee uchebnoe zavedenie «Natsionalnyy gornyy universitet» (in Russian)

Muradyan, L. A., Shaposhnik, V. Yu., & Vinstrot, B. U. (2015). Ispyitaniya perspektivnyih tormoznyih kolodok na zheleznyih dorogah Ukrainyi. Lokomotiv-inform. №7-8. 20-22. (in Russian)

Pavlyukov, A. E., Cherepov, O. V., Shalupina, I. P. (2017). Brake shoe of freight wagon: analysis of damage and factors affecting the brake power. Herald of the Ural State University of Railway Transport, (4), 4-11. DOI: https://doi.org/10.20291/2079-0392-2017-4-4-11 (in Russian)

Ravlyuk, V. G., & Nechvoloda, S. I. (2017). UA Patent № 121889 Ukrainskyi instytut intelektualnoi vlasnosti (Ukrpatent)

Ravlyuk, V. G. (2019). Definition of the dual wear features of the brake shoes of freight cars. Zbirnyk naukovykh prats USURT, 183, 46-59. (in Ukrainian)

Ravlyuk, V. G. (2019). Investigation of features of dual wear of pads in brake system of freight cars. Science and Transport Progress, 2(80), 111-126. DOI: https://doi.org/10.15802/stp2019/166114 (іn Ukrainian)

Ravlyuk, V. G. (2019). The modernization of the elements of the brake lever transmission of freight cars bogies. Science and Transport Progress, 5(83), 108-121. DOI: https://doi.org/10.15802/stp2019/182013 (іn Ukrainian)

Shpachuk, V. P., Pushnja, V. O., Rubanenko, O. I., & Gharbuz, A. O. (2016). Konspekt lekcij z dyscypliny «Teoretychna mekhanika. Dynamika». Kharkiv: O. M. Beketov National University of Urban Economy. (in Ukrainian)

Ambikaprasad, O. Chaubey, & Abhijeet, A. Raut. (2015). Failure Analysis of Brake Shoe in Indian Railway Wagon. IPASJ International Journal of Mechanical Engineering. 3(12) 37-41. (in English)

Bird, J. (2019). Science and Mathematics for Engineering. 6th Edition. Routledge. (in English)

Gupta, V., Saini, K., Garg, A. K., Krishan, G. & Parkash, O. (2016). Comparative Analysis of Disc Brake Model for Different Materials Investigated Under Tragic Situations. Asian Review of Mechanical Engineering 5(1), 18-23. (in English)

Ravlyuk, V., Ravliuk, M., Hrebeniuk, V., & Bondarenko, V. (2019). Research of the calculation scheme for the brake lever transmission and construction of the load model for the brake pads of freight cars. IOP Conference Series: Materials Science and Engineering, 708, 1-8. DOI: https://doi.org/10.1088/1757-899X/708/1/012026 (in English)

Sarip, S. (2013). Design Development of Lightweight Disc Brake for Regenerative Braking – Finite Element Analysis. International Journal of Applied Physics and Mathematics. 3(1), 52-58. DOI: https://doi.org/10.7763/IJAPM.2013.V3.173 (in English)

Sharma, R. C., Dhingra, M., & Pathak, R. K. (2015). Braking systems in railway vehicles. International Journal of Engineering Research & Technology (IJERT), 4(01), 206-211. (in English)

Vakkalagadda, M. R. K., Srivastava, D. K., Mishra, A., & Racherla, V. (2015). Performance analyses of brake blocks used by Indian Railways. Original Research Article, 328-329, 64-76. DOI: https://doi.org/10.1016/j.wear.2015.01.044 (in English)

Vineesh, K. P., Vakkalagadda, M. R. K., Tripathi, A. K., Mishra, A., Racherla, V. (2016). Non-uniformity in braking in coaching and freight stock in Indian Railways and associated causes. Engineering Failure Analysis, 59, 493-508. DOI: https://doi.org/10.1016/j.engfailanal.2015.11.023 (in English)

Zhang, Y., & Zhang, M. (2018). The application status of unit brakes on metro vehicles in China. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), 3(15), 17-23. DOI: https://doi.org/10.9790/1684-1503031723 (in English)


GOST Style Citations


  1. Аналіз стану безпеки руху поїздів на залізницях України за 2017 рік. Головне управління вагонного господарства. Київ, 2017. 24 с.
  2. Блохин Е. П., Алпысбаев К. Т., Панасенко В. Я. [и др.]. Тележки ZK1 полувагонов, построенных в КНР. Вагонный парк. 2012. № 9 (66). С. 12–14.
  3. Власова А. М. Математика с MathCad. Екатеринбург : УрФУ, 2017. 139 с.
  4. Інструкція з експлуатації гальм рухомого складу на залізницях України : ЦТ-ЦВ-ЦЛ-0015 : затв. нака-зом Укрзалізниці від 28 жовтня 1997 р. №264-Ц. Київ, 2004. 146 с.
  5. Інструкція з ремонту гальмівного обладнання : ЦВ-ЦЛ-ЦТ-0013 : затв. М-вом трансп. та зв’язку України 25.01.2005. Київ, 2005. 160 с.
  6. Коптовец А. Н., Ширин Л. Н., Шляхов Э. М., Денищенко А. В., Зиль В. В., Яворская В. В. Моделирование рабочих процессов трения в колодочном колесном тормозе шахтных локомотивов : монография. Днипро : Гос. высш. учеб. завед. «Нац. горный ун-т», 2017. 258 с.
  7. Мурадян Л. А., Шапошник В. Ю., Винстрот Б. У., Муковоз С. П. Испытания перспективных тормозных колодок на железных дорогах Украины. Локомотив-информ. 2015. № 7/8. С. 20–22.
  8. Павлюков А. Э., Черепов О. В., Шалупина И. П. Тормозные колодки грузовых вагонов: анализ повреждаемости и факторов, влияющих на создание тормозной силы. Вестник Уральского государственного университета путей сообщения. 2017.·№4 (36). С. 4–11. DOI: https://doi.org/10.20291/2079-0392-2017-4-4-11
  9. Підсилюючий пристрій до паралельного відведення колодок від коліс у гальмівній системі візків вантажних вагонів: пат. 121889 Україна: МПК51 В60Т 1/02 (2006.01), В61Н 15/00, В61Н 13/00; заявл. 24.04.17; опубл. 26.12.17, Бюл. № 24. 12 с.
  10. Равлюк В. Г. Дефініція особливостей дуального зносу гальмових колодок вантажних вагонів. Зб. наук. пр. Укр. держ. універ. залізнич. трансп. 2019. Вип. 183. С. 46–59.
  11. Равлюк В. Г. Дослідження особливостей дуального зносу колодок у гальмовій системі вантажних вагонів. Наука та прогрес транспорту. 2019. Вип. 2 (80). С. 111–126. DOI: https://doi.org/10.15802/stp2019/166114
  12. Равлюк В. Г. Модернізація елементів гальмової важільної передачі візків вантажних вагонів. Наука та прогрес транспорту. 2019. № 5 (83). С. 108–121. DOI: https://doi.org/10.15802/stp2019/182013
  13. Шпачук В. П., Пушня В. О., Рубаненко О. І., Гарбуз А. О. Теоретична механіка. Динаміка : консп. лек. Харків : ХНУМГ ім. О. М. Бекетова, 2016. 222 с.
  14. Ambikaprasad O. Chaubey, Raut Abhijeet A. Failure Analysis of Brake Shoe in Indian Railway Wagon. IPASJ International Journal of Mechanical Engineering. 2015. Vol. 3. Iss. 12. P. 37–41.
  15. Bird J. Science and Mathematics for Engineering. 6th Edition. Routledge, 2019. 576 p.
  16. Gupta V., Saini K., Garg A. K., Krishan G., Parkash O. Comparative Analysis of Disc Brake Model for Different Materials Investigated Under Tragic Situations. Asian Review of Mechanical Engineering. 2016. Vol. 5. No 1. P. 18–23.
  17. Ravlyuk V., Ravliuk M., Hrebeniuk V., Bondarenko V. Research of the calculation scheme for the brake lever transmission and construction of the load model for the brake pads of freight cars. IOP Conference Series: Materials Science and Engineering. 2019. Vol. 708. P. 1–8. DOI: https://doi.org/10.1088/1757-899X/708/1/012026
  18. Sarip S. Design Development of Lightweight Disc Brake for Regenerative Braking – Finite Element Analysis. International Journal of Applied Physics and Mathematics. 2013. Vol. 3. No 1. P. 52–58. DOI: https://doi.org/10.7763/IJAPM.2013.V3.173
  19. Sharma, R. C., Dhingra M., Pathak R. K. Braking systems in railway vehicles. International Journal of Engineering Research & Technology (IJERT). 2015. Vol. 4. Iss. 01. P. 206–211.
  20. Vakkalagadda M. R. K., Srivastava D. K., Mishra A., Racherla V. Performance analyses of brake blocks used by Indian Railways. Original Research Article. 2015. Vol. 328–329. P. 64–76. DOI: https://doi.org/10.1016/j.wear.2015.01.044
  21. Vineesh K. P., Vakkalagadda M. R. K., Tripathi A. K., Mishra A., Racherla V. Non-uniformity in braking in coaching and freight stock in Indian Railways and associated causes. Engineering Failure Analysis. 2016. Vol. 59. P. 493–508. DOI: https://doi.org/10.1016/j.engfailanal.2015.11.023
  22. Zhang Y., Zhang M. The application status of unit brakes on metro vehicles in China. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE). 2018. Vol. 3. Iss. 15. P. 17–23. DOI: https://doi.org/10.9790/1684-1503031723




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

 

ISSN 2307–3489 (Print)
ІSSN 2307–6666 (Online)