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Akademický článek

THEORETICAL AND EXPERIMENTAL MODELLING OF THE TRIBOLOGICAL BEHAVIOUR ASPECTS OF CONTACT ELEMENTS IN THE PRECESSIONAL GEARING (PG)

Autor: BOSTAN, Ion, STOICEV, Petru, POȘTARU, Gheorghe, VACULENCO, Maxim, BUGA, Alexandru, KULEV, Mihail, POȘTARU, Andrei, PLATON, Andrei

Publikováno v: Journal of Engineering Science (Chişinău), Vol XXIX, Iss 2, Pp 8-17 (2022)

This paper deals with the theoretical-experimental model of the tribological behavior of the contact elements in precessional gears (PG) in the functions of conjugate profiles of linear velocities "convex-concave" or "convex-convex" for the correspon

Externí odkaz: https://doaj.org/article/930f135931f44e55a8b775e9f631e91a

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Akademický článek

THEORETICAL CONTRIBUTIONS ON THE SELECTION OF POSSIBLE TRIBOLOGICAL COUPLES OF MATERIALS FOR THE MANUFACTURE OF PRECESSIONAL TRANSMISSIONS

Autor: BOSTAN, Ion, STOICEV, Petru, BUGA, Alexandru, POSTARU, Gheorghe, TRIFAN, Nicolae, PLATON, Andrei

Publikováno v: Journal of Engineering Science (Chişinău), Vol XXIX, Iss 1, Pp 23-47 (2022)

Selecting gear materials is a great challenge for engineers. Gear teeth are subject to difficult and severe loading conditions. Simultaneous action of alternating normal and tangential dynamic stresses occurs, contact deformations accompanied by slid

Externí odkaz: https://doaj.org/article/439b0b47c8fb4af2b6e2ab9f5c0f2043

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Akademický článek

The mathematical model of the precessional gear and the process of generation of inclined teeth

Autor: BOSTAN, Viorel, BOSTAN, Ion, VACULENCO, Maxim, SCATICAILOV, Serghei

Publikováno v: Journal of Engineering Science (Chişinău), Vol 27, Iss 4, Pp 28-36 (2020)

The paper deals with the development of precessional gears with toothed gearing with concave-concave contact of inclined teeth. In order to increase the bearing capacity and the mechanical efficiency of the precessional gear, the contact of the teeth

Externí odkaz: https://doaj.org/article/f99c62f273934f7ab7c8dd69ff2c6e93

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Akademický článek

Theoretical-practical analysis of domestic regulations of Republic of Moldova in the matter of divorce

Autor: BOSTAN, Ion

Publikováno v: Journal of Social Sciences, Vol 3, Iss 3, Pp 121-133 (2020)

The last decades brought essential changes in society in general, and in the family in particular. Family models, once so marginal to society, are becoming more widespread in our country, marital relations becoming much more unstable. Thus, from year

Externí odkaz: https://doaj.org/article/d060b48c7f0d4e58b2001b7856265fc3

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