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contributor authorS. Seetharaman
contributor authorA. Kahraman
date accessioned2017-05-09T00:35:39Z
date available2017-05-09T00:35:39Z
date copyrightApril, 2009
date issued2009
identifier issn0742-4787
identifier otherJOTRE9-28765#022201_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/142094
description abstractA physics-based fluid mechanics model is proposed to predict spin power losses of gear pairs due to oil churning and windage. While the model is intended to simulate oil churning losses in dip-lubricated conditions, certain components of it apply to air windage losses as well. The total spin power loss is defined as the sum of (i) power losses associated with the interactions of individual gears with the fluid, and (ii) power losses due to pumping of the oil at the gear mesh. The power losses in the first group are modeled through individual formulations for drag forces induced by the fluid on a rotating gear body along its periphery and faces, as well as for eddies formed in the cavities between adjacent teeth. Gear mesh pumping losses will be predicted analytically as the power loss due to squeezing of the lubricant, as a consequence of volume contraction of the mesh space between mating gears as they rotate. The model is applied to a unity-ratio spur gear pair to quantify the individual contributions of each power loss component to the total spin power loss. The influence of operating conditions, gear geometry parameters, and lubricant properties on spin power loss are also quantified at the end. A companion paper (, 2009, “ Oil Churning Power Losses of a Gear Pair: Experiments and Model Validation,” ASME J. Tribol., 131, p. 022202) provides comparisons to experiments for validation of the proposed model.
publisherThe American Society of Mechanical Engineers (ASME)
titleLoad-Independent Spin Power Losses of a Spur Gear Pair: Model Formulation
typeJournal Paper
journal volume131
journal issue2
journal titleJournal of Tribology
identifier doi10.1115/1.3085943
journal fristpage22201
identifier eissn1528-8897
keywordsLubricants
keywordsParticle spin
keywordsGears
keywordsSpur gears
keywordsFlow (Dynamics)
keywordsStress
keywordsDrag (Fluid dynamics) AND Cavities
treeJournal of Tribology:;2009:;volume( 131 ):;issue: 002
contenttypeFulltext


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