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Vol.25, No.2, 2025, pp. 249–253 |
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WINDAGE LOSSES IN HIGH-SPEED CYLINDRICAL GEAR DRIVES Aleksandar Dimić1*
1) University of Belgrade, Faculty of Mechanical Engineering, Belgrade SERBIA A. Dimić https://orcid.org/0000-0001-5495-0763 , *email: adimic@mas.bg.ac.rs ; N. Kolarević https://orcid.org/0000-0003-2836-7405 2) Innovation Centre of the Faculty of Mechanical Engineering, Belgrade, SERBIA M. Stanković https://orcid.org/0000-0002-4310-2184 3) EDePro - Engine Development & Production, Belgrade, SERBIA D. Mihajlović https://orcid.org/0009-0009-5972-6926
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Abstract High-speed gears with a pitch line velocity exceeding 60 m/s are vital components in the transmission of power and motion in aircraft gearboxes. High demands are placed on them in terms of reliability and energy efficiency. At the same time, their operating conditions (load, speed, temperature) are very unfavourable. One of the main causes of power losses in such gears are windage losses. In this paper, an analysis of windage losses is carried out for a gearbox configuration applied in the aviation industry. Current analytical models are applied to calculate the windage losses. It has been shown that windage losses can be as much as 34 % of gear drive meshing losses and must be studied as such in detail in the design phase of high-speed gear drives. Keywords: • high speed gears • windage losses • cylindrical gears efficiency • split path gearbox |
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full article (562 kB)
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