PSI - Issue 20

E.S. Oganyan et al. / Procedia Structural Integrity 20 (2019) 42–47 E.S. Oganyan et al. / Structural Integrity Procedia 00 (2019) 000–000

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Fig. 3. The results of processing in Fatigue by the rainflow method of diagrams of the calculated theoretical loading obtained in UM according to the model of fig. 2.

The deformation fracture model (3) used for the calculation allows varying the loading parameters in a wide range depending on the portion of loads of I and III modes in the spectrum. The theoretical software and experimental methods involved in the evaluation may vary significantly. It depends on the designated task, the completeness of the initial data on the object under study, operational and other factors. In particular, to increase the reliability of the results obtained, the calculated distribution of loads should be as close as possible to the actual in operation. References Coffin, L.F., 1963. Cyclic deformations and metal fatigue. Foreign Lit., Moscow, Russia, pp. 47–69. GOST 22703, 2012. Cast parts of coupling and automatic coupling units of the railway rolling stock. General specifications. Standartinform, Moscow, Russia, pp. 28. GOST 33211, 2014. Freight cars. Requirements for strength and dynamic qualities. Standartinform, Moscow, Russia, pp. 58. GOST 33788, 2016. Freight and passenger cars. Methods of testing for strength and dynamic qualities. Standartinform, Moscow, Russia, pp. 46. GOST Р 54749, 2011. Coupling and automatic coupling unit of the railway rolling stock. General specifications. Standartinform, Moscow, Russia, pp. 15. GOST Р 57445, 2017. Railway technical facilities. General requirements for methods of lifetime determination. Standartinform, Moscow, Russia, pp. 30. Kostenko, N.A., Nikolsky, L.N., 1971. Statistical distributions of longitudinal forces acting on the rolling stock through automatic couplers and methods for their determination. BITM Proceedings 24, 69–83. Kostina, N.A., 1981. Refinement of the loading characteristics of a car by longitudinal forces through automatic coupler. Vestnik VNIIZhT 4, 36–39. Manson, S., 1974. Temperature stresses and low-cycle fatigue. Mechanical Engineering, Moscow, Russia, pp. 344. Oganian, E.S., Volokhov, G. М ., 2013. Calculations and strength tests for the supporting structures of locomotives. Moscow, Russia, 52 − 59. Standards for calculating and designing railroad cars of MPS railways with 1520 mm gauge (not self-propelled), 1996. GosNIIV, Moscow, Russia, pp. 319.