Results 1 to 10 of about 11,057 (219)

Mechanical Transmissions with Convex–Concave Multipair Contact of Teeth in Precessional Gearing

Designs
In this study, we propose a new toothed gear for mechanical transmissions built from a satellite wheel with two toothed conical crowns, one of which conjugates with a fixed central conical wheel mounted in the transmission housing and the other with a ...
Viorel Bostan, Ion Bostan, Maxim Vaculenco   +2 more
doaj   +4 more sources

Comparison of Selected Parameters of a Planetary Gearbox with Involute and Convex–Concave Teeth Flank Profiles

Applied Sciences, 2020
This article presents a model of the geometry of teeth profiles based on the path of contact definition. The basic principles of the involute and convex−concave teeth profile generation are described.
Frantisek Brumercik, Michal Lukac, Jacek Caban, Zbigniew Krzysiak, Adam Glowacz   +4 more
doaj   +3 more sources

OPTIMAL DESIGN OF CYLINDRICAL GEARS WITH CONVEX-CONCAVE CONTACT: OBJECTIVE FUNCTION AND VARIABLES PLANNING

Bulletin of the National Technical University «KhPI» Series: Engineering and CAD, 2021
Reducing the mass and dimensions of gears is an actual task of modern mechanical engineering. One of the perspective ways to solve it is the use of gearing with a convex-concave contact of the teeth. Therefore, the study is devoted to the development of methods for the optimal design of cylindrical gears with convex-concave contact of the working ...
Oleksandr Ustynenko, Nickita Levin, Oleksiy Bondarenko, Miroslav Bošanský, Roman Protasov, Sergij Andrienko, Mykola Matyushenko   +6 more
openaire   +3 more sources

MATHEMATICAL MODEL AND OPTIMIZATION ALGORITHM ACCORDING TO THE CRITERIA OF MINIMUM CONTACT STRESS FOR GEARS WITH CONVEX-CONCAVE CONTACT

Bulletin of the National Technical University «KhPI» Series: Engineering and CAD, 2023
Reducing the mass and dimensions of gears is an actual task of modern mechanical engineering. One of the perspective ways to solve it is the use of gearing with a convex-concave contact of the teeth. The study is devoted to the development of mathematical model and algorithm for the optimal design of cylindrical gears with convex-concave contact of the
Nickita Levin, Oleksandr Ustinenko, Miroslav Bošanský, Roman Protasov, Oleksiy Bondarenko, Sergij Andrienko   +5 more
openaire   +1 more source

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

Journal of Engineering Science (Chişinău), 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 corresponding
BOSTAN, Ion, STOICEV, Petru, POȘTARU, Gheorghe, VACULENCO, Maxim, BUGA, Alexandru, KULEV, Mihail, POȘTARU, Andrei, PLATON, Andrei   +7 more
doaj   +1 more source

MATHEMATICAL MODELLING OF TEETH CONTACT IN PRECESSIONAL TRANSMISSION [PDF]

Journal of Engineering Science (Chişinău), 2019
The article deals with the development of the 2K-H precessional toothed gear with convex-concave contact of the teeth. The teeth flanks of the satellite are described in the circular arc, and the central wheels - with convex / concave profiles.
Viorel Bostan, Ion Bostan, Maxim Vaculenco, Mihail Ţopa   +3 more
doaj   +1 more source

Design formulae for a concave convex arc line gear mechanism [PDF]

Mechanical Sciences, 2016
Line gear is a newly developed gear mechanism with point contact meshing according to space curve meshing theory. This paper proposes a new form of line gear with a couple of concave convex arc tooth profiles. It has four characteristics.
Y. Chen, L. Yao
doaj   +1 more source

TEETH GEOMETRY AND CONTACT PRESSURE CALCULATION OF EXTERNAL CYCLOIDAL GEARS [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2018
Cycloidal (also called epicyclical or convex-concave) gears are used less often than common involute gears, which are very easy to manufacture and can be modified by corrections to the gear profile.
Frantisek BRUMERCIK, Michal LUKAC, Maros MAJCHRAK, Zbigniew KRZYSIAK, Leszek KRZYWONOS   +4 more
doaj   +1 more source

Tooth profile design of a novel helical gear mechanism with improved geometry for a parallel shaft transmission [PDF]

Mechanical Sciences, 2022
Based on the space curve meshing equation, a novel helical gear mechanism with improved geometry is presented. First, equations of the theoretical contact curves were derived based on the space curve meshing theory.
E. He, E. He, S. Yin
doaj   +1 more source

GENERATION AND TOOTH CONTACT ANALYSIS (TCA) OF HYPOID GEAR DRIVE

Journal of Engineering, 2023
The present work covers the Face-Hobbing method for generation and simulation of meshing of Face hobbed hypoid gear drive. In this work the generation process of hobbed hypoid gear has been achieved by determination of the generation function of blade ...
Mohammad Q. Abdullah , Nassear R. Hmoad   +1 more
doaj   +1 more source