Metadata (abstracts and keywords) for the articles in the journal
Patrina T.A., Stepanov S.K. Strength calculations of the conical gearbox at stresses variable over time // Vestnik I. Yakovlev Chuvach State Pedagogical University. Series: Mechanics of a limit state . 2024. № 2(60). p. 5-23
Author(s):
Patrina T.A., Stepanov S.K.
Index of UDK:
531: 004.942
DOI:
10.37972/chgpu.2024.60.2.001
Title:
Strength calculations of the conical gearbox at stresses variable over time
Keywords:
mechanics of deformed solid body, theory of mechanisms and machines, fatigue failure, material strength under variable stresses, three-dimensional design in Compass 3D V.21, CAE system APM WinMachine, static and dynamic strength analysis of materials under contact stresses and bending stresses
Abstracts:
The authors of the article conducted a verification calculation on the contact fatigue endurance of gear tooth surfaces and the bending fatigue endurance of a bevel helical gearbox considering dynamic loads. The gearbox is used in agricultural machinery to transform torque, change rotational speed, and transmit it to other units. The article presents an analysis of the strength calculation results of the mechanism’s parts using computer modeling of fatigue failure in the CAD system Kompas 3D and the CAE system APM WinMachine, from the occurrence of the first microcracks on the surface and within the parts to fatigue failure. The strength properties of the parts depend on geometric dimensions, surface condition, processing method, and several other factors. The methodology proposed by the authors for strength analysis, based on dynamic calculations of maximum, contact, and bending stresses varying over time in the materials of the gearbox parts, considering the surface condition of the teeth during operation, using analytical and computer methods, allows reducing the probability of fatigue crack initiation and stopping their further growth.
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