Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Efficiency and temperature of spur gears using spray lubrication compared to dip lubrication
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.ORCID iD: 0000-0002-2347-8379
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.ORCID iD: 0000-0003-2489-0688
(English)In: Journal of Engineering TribologyArticle in journal (Refereed) Accepted
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:kth:diva-202984OAI: oai:DiVA.org:kth-202984DiVA, id: diva2:1080660
Note

QC 20170314

Available from: 2017-03-10 Created: 2017-03-10 Last updated: 2018-01-13Bibliographically approved
In thesis
1. An experimental investigation of spur gear efficiency and temperature: A comparison between ground and superfinished surfaces
Open this publication in new window or tab >>An experimental investigation of spur gear efficiency and temperature: A comparison between ground and superfinished surfaces
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis focuses on reliability when testing gear efficiency and on how gear mesh efficiency can be increased without detrimental effects on the gears. Test equipment commonly used in gear research was analysed to identify important parameters for gear efficiency testing. The effect of the bearing model's load-dependent losses on gear mesh efficiency was also investigated. Two different surface finishes of gears, ground and superfinished, were investigated to determine how two different load levels during running-in affect gear mesh efficiency and changes in surface roughness. Efficiency and gear temperature were also measured for ground and superfinished gears with dip lubrication, as well as two different forms of spray lubrication (before and after gear mesh contact).

Tests on a gear test rig, showed that different assemblies of the same test setup can yield different measurements of torque loss. The applied bearing model had a significant effect on the estimated gear mesh efficiency. The mesh efficiency of ground gears is affected by the running-in procedure, with a higher running-in load resulting in a higher mesh efficiency than a lower load. This effect was not seen for superfinished gears, which show the same gear mesh efficiency for both running-in loads. Gearbox efficiency increased with spray lubrication rather than dip lubrication. The gear mesh efficiency increased, and thus gear temperatures were reduced, when superfinished gears were used rather than ground gears. A lower gear temperature was measured when gears were spray lubricated at the mesh inlet rather than the mesh outlet.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. p. 51
Series
TRITA-MMK, ISSN 1400-1179 ; 2017:02
Keyword
gears, ground, superfinished, efficiency, temperature, running-in, dip lubrication, spray lubrication
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Design
Identifiers
urn:nbn:se:kth:diva-202990 (URN)
Public defence
2017-03-31, Gladan, Brinellvägen 85, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20170314

Available from: 2017-03-14 Created: 2017-03-10 Last updated: 2018-01-13Bibliographically approved

Open Access in DiVA

fulltext(446 kB)41 downloads
File information
File name FULLTEXT01.pdfFile size 446 kBChecksum SHA-512
306033f0ae5d8b4b15d23f5f0d7e1386d267bf3092fd801801bf77965077a929f3357b23a2a02c7484828b00df6e4e8d9c23b7503274ea642c17c2d81e8f218c
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Andersson, MartinSosa, MarioOlofsson, Ulf
By organisation
Tribologi
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

Search outside of DiVA

GoogleGoogle Scholar
Total: 41 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 83 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf