Next Article in Journal
Influence of Temperature on the Frictional Properties of Water-Lubricated Surfaces
Previous Article in Journal
The Preparation of Graphene Oxide and Its Derivatives and Their Application in Bio-Tribological Systems
Article Menu

Export Article

Open AccessArticle
Lubricants 2014, 2(4), 162-176; doi:10.3390/lubricants2040162

Windage Power Losses of Ordinary Gears: Different CFD Approaches Aimed to the Reduction of the Computational Effort

1
Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, I-20156 Milano, Italy
2
Department of Energy, Politecnico di Milano, Via Lambruschini 4, I-20156 Milano, Italy
*
Author to whom correspondence should be addressed.
Received: 21 July 2014 / Revised: 18 August 2014 / Accepted: 29 August 2014 / Published: 15 October 2014
View Full-Text   |   Download PDF [2639 KB, uploaded 15 October 2014]   |  

Abstract

Efficiency improvement is one of the main challenges in all fields of design. The reduction of power losses is becoming a great concern also in the design of power transmissions. For this reason it is important to have specific models available in order to quantify the power losses during the design stage. The power losses of a gear transmission can be subdivided into bearing losses, seal losses, meshing losses and hydraulic losses. Although literature provides models for the prediction of losses related to bearings or to gear meshing, for the calculations of the losses generated by the interaction with the lubricant, only few and simplified models are available. For this reason the authors recognize that a general purpose method is required in order to overcome this lack of fit and to improve the capability to predict the efficiency of gearboxes. Being able to compare different design solutions means being able to improve the efficiency, reduce the operating temperature and, consequently, improve the reliability of the system. In this paper, the windage losses generated by a single rotating gear have been studied exploiting different numerical approaches. The results obtained have been compared with measurements showing good agreement. View Full-Text
Keywords: gear; efficiency; windage losses; CFD; MRF; lubricant gear; efficiency; windage losses; CFD; MRF; lubricant
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Concli, F.; Gorla, C.; Della Torre, A.; Montenegro, G. Windage Power Losses of Ordinary Gears: Different CFD Approaches Aimed to the Reduction of the Computational Effort. Lubricants 2014, 2, 162-176.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Lubricants EISSN 2075-4442 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top