PSI - Issue 50

S.Yu. Lebedev et al. / Procedia Structural Integrity 50 (2023) 155–162 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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4. Conclusion Based on the presented work, the following conclusions can be drawn. The method of probability calculation of failure-free operation of surface-hardened gears is suggested by authors, that is different in the following: 1. the calculation is performed for pinion and wheel; 2. the probability of failure-free operation according to the criterion tooth interior fatigue fracture is taken into account; 3. Non-parametric statistics tools are used; 4. When calculating contact stresses, the twist angle caused by the deformation of the transmission elements and the framing is taken into account. Based on the proposed method, a test calculation of a surface-hardened gear train was performed, the probability of failure-free operation of which was determined to be 93.3%. References Reshchikov V.F., 1975. Friction and wear in heavily loaded gears, Moscow: Mashinostroenie, 232 p. (in Russ.). Kogaev V.P., Drozdov Yu.N., 1991. 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