ANALYSIS OF IRREGULARITIES TYPES IN ASSESSING THE DYNAMIC LOAD OF SHUNTING LOCOMOTIVES
Abstract and keywords
Abstract (English):
The paper considers the influence of various types of butt irregularities of the railway track on the dynamic loading of load-bearing structures of shunting locomotives. Domestic and foreign documents regulating the calculated irregularities are analyzed. The study uses the Universal Mechanism software package, which is applied to simulate dynamic loads during the movement of TEM2 locomotive along tracks with different types of irregularities. The calculation results show that the introduction of butt irregularities into the model leads to an increase in the vertical dynamics coefficient at low speeds, which is typical for shunting locomotives. The maximum values of the dynamics coefficient are obtained at the speed of 25 km/h. The results obtained confirm the need to take into account butt irregularities when estimating the dynamic load of a rolling stock and predicting its residual life.

Keywords:
locomotive, load, irregularities, coefficient of dynamics, railway track, kinetic disturbances, resource
References

1. Pekanov AA. The condition of the locomotive fleet of industrial enterprises: causes and consequences. Railway Equipment Journal. 2014;3(27):35-39.

2. Bragin AM. Improving the safety of non-public railway transport. Postulate. 2018;2-1(28):26.

3. Dudkin EP, Rybachok VM. Problems of construction and maintenance of non-public railway tracks. Transport of the Russian Federation. 2008;2(15):16-17.

4. Bunin BB, Ohanyan ES, Ponomareva TM, Shevchenko VG. Evaluation of the durability and residual resource of locomotive bogie frames. Tyazheloye Mashinostroyeniye. 2007;11:31-33.

5. Ushkalov VF, Lapina LG, Mashchenko IA. Computational perturbations for assessing the dynamic qualities of freight cars. Science and Transport Progress. 2013;4(46):135-144.

6. Akishin AA, Savoskin AN. Generation of a multidimensional random process of perturbations in problems of dynamics of railway rolling stock. Computing, Telecommunication and Control. 2015;2-3(217-222):71-78. DOIhttps://doi.org/10.5862/JCSTCS.217-222.6.

7. Grigoriev PS. Forecasting the residual life of frames of industrial diesel locomotives [abstract of dissertation]. [Moscow (RF)]; 2016.

8. RD 32.68-96. Estimated railway track irregularities for use in the research and design of passenger and freight cars: guidance document. Moscow: VNIIZHT; 1996.

9. PNST 511-2020. Freight cars. Design irregularities of the railway track for use in dynamic qualities estimation of freight. Moscow: Standartinform; 2021.

10. ERRI B176/DT 290: B176/3 Benchmark Problem, Results and Assessment. Technical report. European Rail Research Institute; 1993.

11. Code UIC 518: Testing and approval of railway vehicles from the point of view of their dynamic behaviour: safety, track fatigue, ride quality. 2005.

12. GOST 34939-2023. Locomotives. Requirements for bearing structure strength and dynamic properties. Moscow: Standartinform; 2023.

13. GOST 55513-2013. Locomotives. Requirements for strength and dynamic properties. Moscow: Standartinform; 2013.

14. Pogorelov DYu. Computer modeling of dynamics of technical systems using Universal Mechanism software package. Vestnik Komp'iuternykh i Informatsionnykh Tekhnologii (Herald of Computer and Information Technologies). 2005;4(10):27-34.

15. Musaev ZhS, Shimbulatova AB, Turkebaev MD, Serikbaeva LS. Analysis of software systems for the study of dynamic characteristics of railway carriages. Bulletin of KazATC. 2008;6(55):59-65.

16. Bogdanovich AA, Saidova AV. Assessment of the influence of irregularities and the model of the rail track on the dynamic qualities of a freight car. Bulletin of Scientific Research Results. 2024;2:29-41.

Login or Create
* Forgot password?