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Windage Power Losses From Spiral Bevel Gears With Varying Oil Flows and Shroud Configurations
Journal of Turbomachinery, 2008In many aero-engines, the power to drive accessories is transmitted through high speed bevel gears in a chamber in the center of the engine. The windage power loss (WPL) associated with these gears makes a significant contribution to the overall heat generation within the chamber.
Graham Johnson +3 more
openaire +1 more source
Forschung im Ingenieurwesen, 2016
Energy efficiency represents one of the most relevant trends in many fields, including the sector of power transmissions and gears, which are involved whenever power has to transmitted and transformed. For instance, in the automotive industry, gearboxes can contribute to the overall efficiency of the system and promote lower fuel consumption and ...
CONCLI, FRANCO, GORLA, CARLO
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Energy efficiency represents one of the most relevant trends in many fields, including the sector of power transmissions and gears, which are involved whenever power has to transmitted and transformed. For instance, in the automotive industry, gearboxes can contribute to the overall efficiency of the system and promote lower fuel consumption and ...
CONCLI, FRANCO, GORLA, CARLO
openaire +1 more source
A mechanism-based characterization of the load-independent power loss of dip-lubricated gears
Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribologyIn gearboxes, the transmission of power and motion is accompanied by power losses. Load-independent power losses are particularly relevant at higher circumferential speeds.
L. Hildebrand, T. Lohner, Karsten Stahl
semanticscholar +1 more source
Development of a quasi-analytical model to predict the windage power losses of a spiral bevel gear
Tribology International, 2020Abstract Windage effects becomes prevailing in high speed areo-engine applications. The present paper is to provide some theoretical findings to predict the windage power loss for spiral bevel gears. Firstly, a quasi-analytical model detailing the flow pattern surrounding the spiral bevel gear including the toe, heel and gear teeth.
Xiang Zhu, Yu Dai, Feiyue Ma
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2025 7th International Conference on Power and Energy Technology (ICPET)
(The Flywheel Energy Storage System (FESS) has become an essential solution for grid frequency regulation due to its fast response, high power output, and low cost.
Yu Xie +4 more
semanticscholar +1 more source
(The Flywheel Energy Storage System (FESS) has become an essential solution for grid frequency regulation due to its fast response, high power output, and low cost.
Yu Xie +4 more
semanticscholar +1 more source
2018
Load-independent power losses, namely windage power losses, are of big concern when the gearbox is loaded without oil lubrication. Air and/or oil mist are the fluid medium and should be studied before the addition of oil churning and squeezing losses. In this study, firstly, two dimensional computational fluid dynamics (CFD) approaches are followed to ...
Emre Kara +2 more
openaire +1 more source
Load-independent power losses, namely windage power losses, are of big concern when the gearbox is loaded without oil lubrication. Air and/or oil mist are the fluid medium and should be studied before the addition of oil churning and squeezing losses. In this study, firstly, two dimensional computational fluid dynamics (CFD) approaches are followed to ...
Emre Kara +2 more
openaire +1 more source
Impulse power loss in orthogonal face gear–numerical and experimental results
The European Physical Journal Plus, 2023Y. Dai, X. Chen, D. Yang, X. Zhu
semanticscholar +1 more source
Antibiotic resistance in the patient with cancer: Escalating challenges and paths forward
Ca-A Cancer Journal for Clinicians, 2021Amila K Nanayakkara +2 more
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