employee
Gomel, Belarus
employee
Gomel, Belarus
employee
Gomel, Belarus
UDC 629.4.027
UDC 629.4.018
Russian Library and Bibliographic Classification 392
The paper describes the procedure for carrying out and the results of fatigue tests of bolsters and solebars of car bogies. The results of fatigue testing and control for compliance with mechanical properties, surface quality, micro- and macrostructure are compared with the values regulated by state standards and regulatory documents. The causes of occurring and propagating of cracks in the bolsters and solebars of car bogies, identified by the magnetic powder method of non-destructive testing are estimated. Fatigue curves of the studied test objects are constructed on the basis of experimental data. Ways to increase the strength of the considered structures are proposed.
frame, bolster, car bogie, testing, viscosity, magnetic powder control, microstructure, macrostructure, strength, resource
1. Senko VI, Pastuhov IF, Makeev SV, Pastuhov MI. On the load-carrying capacity of beams above the springs of freight bogies. Vestnik of Sukhoi State Technical Technical University. 2009;1:16-20.
2. Senko VI, Pastuhov IF. Method for estimating the residual life of cast parts of freight car bogies. Bulletin of BSUT: Science and Transport. 2007; 1-2 (14-15):104-108.
3. Yunusov SZ, Valieva DSh, Tursunov NK. Investigation of the strength characteristics of the over-spring beam of a freight car trolley for cyclic loading. Universum: Technical Sciences [Internet]. 2023 May 28:5(110). Available from: https://7universum.com/ru/tech/archive/item/15556
4. Smirnova TA, Sukhov AV. On the causes of poor quality of bolsters and solebars of bogies. Vagoni I Vagonnoe Khozyastvo (Cars and Car Facilities). 2011;1(25):22-24.
5. Shostak R. Legends and myths of foundry production. Foundrymen of Russia. 2011;11:32-34.
6. PR NK V.3-2013 Rules for non-destructive testing of cast parts of freight car bogies during repair. Special requirements. Moscow: Codex; 2013 November 19-20.
7. Pastukhov MI. Assessment of the bearing capacity of cast parts of freight car bogies after long-term operation. Vestnik of Polotsk State University. 2005;12:160-163.
8. Sukhov AV, Reykhart VA. More on the fatigue resistance assessment of the freight car bogies’cast parts. Russian Railway Science Journal. 2015;1:43-48.
9. Baranov AN, Efimov VP. Fatigue testings of molded carrierpieces of three-axle bogie model 18-522A. Proceedings of Petersburg Transport University. 2018;1:5-16.
10. Adilkhanov EG, Zhakupov KB, Sekero ShA. Stress state evaluation of bolsters with constant contact lateral support. Bulletin of KazATC. 2019;2(109):66-75.
11. Dmitriev SV, Konovalov AI. Testing method of bogie solibars of freight cars with adequate operational load. Transport Engineering. 2021;4(95):44-46.
12. GOST 32400-2013 Molded side frame and bolster beam of bogies for railway freight wagons. Specifications. Moscow: Standartinform; 2014.
13. Bolsters and cast side frames of bogie trucks of 1520 mm gauge railway freight cars. The technique of static strength tests. Moscow: Russian Railways; 2010.
14. GOST 32894-2014 Railway application. Inspection control. General provisions. Moscow: Standartinform; 2015.
15. GOST 5639 Steels and alloys. Methods for detection and determination of grain size. Moscow: Izdatelstvo Standartov; 2003.
16. TR TS 001/2011 Technical Regulations of the Customs Union "On the safety of railway rolling stock". 2011 Jul 15.
