Application of Gears With Asymmetric Teeth in Turboprop Engine Gearbox

Novikov, Alexander S.; Paikin, Alexander G.; Dorofeyev, V.; Ananiev, Viacheslav M.; Kapelevich, Alexander L.

doi:10.1115/detc2007-34823

Cited by 12 publications

(10 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1,2 It has been applied to the gearbox of a propeller aircraft and has a good application prospect. 3 When the gear is running at high rotational speed, the oil injection method is mainly used for lubrication and cooling. The oil supply method determines the amount of oil injected into the meshing zone as well as the lubrication and cooling effect.…”

Section: Introductionmentioning

confidence: 99%

Research on lubrication characteristics of asymmetric helical gear based on CFD method

Zou

Zhao

et al. 2020

Lubrication Science

View full text Add to dashboard Cite

Aiming at the asymmetric helical gear injection lubrication, simulation models for coast flank and drive flank injections were established by computational fluid dynamics (CFD). Firstly, the two oil injection methods of the asymmetric helical gear were explained. Then, a mathematical calculation model suitable for gear injection lubrication analysis was established. Finally, the model is simulated by CFD software. The oil volume fraction and pressure at the meshing point during the gear meshing process of the two injection models are obtained. The effects of gear speeds and spray velocities on the oil volume fraction and pressure are analysed. By comparing the two oil injection methods, when the spray velocity is more than 2.7 times the pitch line velocity, better lubrication is obtained by the drive flank injection method. When the spray velocity is less than 2.7 times the pitch line velocity, the coast flank injection method can achieve better lubrication.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on lubrication characteristics of asymmetric helical gear based on CFD method

Zou

Zhao

et al. 2020

Lubrication Science

View full text Add to dashboard Cite

show abstract

“…The theory of the geometrical calculation of these gears was developed more completely by Profs. Vulgakov [1], Litvin, Lian, Kapelevich [2,3], Novikov, Paikin, Dorofeyev, Ananiev, Arnaudov, Dorofeyev [4][5][6][7], Alipiyev [8] …”

Section: Introductionmentioning

confidence: 99%

Terminology and Design of Asymmetrical Gears for Aircraft

Novikov

Голованов

Dorofeyev

et al. 2015

Mechanisms and Machine Science

View full text Add to dashboard Cite

Main calculation principle of gear wheel geometry with asymmetrical tooth profile is presented. The paper presents calculation of bending stresses by means of YFS coefficient which takes into account the tooth shape and stress concentration. Graphic method of YFS coefficients calculation is described. Graphic method of stiffness calculation of teeth with asymmetrical profile and results of vibration testing are given.

show abstract

“…The matter of profile modification lays in a creation of the asymmetric profiles that are relative to their planes of symmetry. The research findings of the asymmetric tooth gears for aerospace propulsion derived by A. Kapelevich (USA) indicate significant increase of the load capacity and, potentially of the size and weight reduction [1]- [6].…”

Section: Introductionmentioning

confidence: 99%

Gears with Asymmetric Tooth Profiles and New Alternative Method of Their Manufacturing

Hrytsay¹

2017

Ukr. j. mech. eng. mater. sci.

View full text Add to dashboard Cite

The article presents a new gears cutting process-radial circular generating method and describes its multiple benefits for manufacturers of transmissions. The overall increase of efficiency is realized due to using a simple tool and the conventional gear tool machine for cutting gears of different types. In particular, this new method was used for cutting gears with the asymmetric profiles of wheel teeth, which allows considerably amplifying power transmission density, increasing load capacity, and reducing size and weight.

show abstract

Application of Gears With Asymmetric Teeth in Turboprop Engine Gearbox

Abstract: This paper describes the research, development of the first in the world production gearbox with asymmetric tooth profiles for the TV7-117S turboprop engine. The paper also presents numerical design data related to development this gearbox.

Cited by 12 publications

References 1 publication

Research on lubrication characteristics of asymmetric helical gear based on CFD method

Research on lubrication characteristics of asymmetric helical gear based on CFD method

Terminology and Design of Asymmetrical Gears for Aircraft

Gears with Asymmetric Tooth Profiles and New Alternative Method of Their Manufacturing

Contact Info

Product

Resources

About