Effects of water in wind turbine oils on the gear load capacity

Thomas Tobie; Karsten Stahl; Bernd Robert Höhn; Jochen Witzig

Effects of water in wind turbine oils on the gear load capacity

Thomas Tobie
, Karsten Stahl
, Bernd Robert Höhn
, Jochen Witzig

Chair of Machine Elements

Technical University of Munich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Besides mineral-based gear oils, an increasing number of synthetic gear oils, e.g., polyalphaolefins, are found in wind turbine gear boxes. Water may condensate in the gear housing and can contaminate the lubricating oil. This may alter the lubricant performance and reduce the lifetime of the components. Gear running tests show different effects of water contaminated lubricants on different types of gear damages. Lubricant related gear failures that are typical for critical lubricating conditions showed no reduction of the gear load capacity. In contrast, test runs at higher lubricating film thickness showed a negative influence on the pitting load carrying capacity. There might be an increased risk of early pitting damages due hydrogen-induced stress corrosion cracking when unsolved water is available. This correlated with documented formation of pitting damages in tests with and without water contamination. This is an abstract of a paper presented at the 2012 STLE Annual Meeting and Exhibition (St Louis, MO 5/6-10/2012).

Original language	English
Title of host publication	Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012
Pages	459-461
Number of pages	3
State	Published - 2012
Event	Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012 - St. Louis, MO, United States Duration: 6 May 2012 → 10 May 2012

Publication series

Name	Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012

Conference

Conference	Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012
Country/Territory	United States
City	St. Louis, MO
Period	6/05/12 → 10/05/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy

Keywords

Contacts: Contact mechanics
Gears: Gears (general)
Maintenance: Water contamination

Cite this

@inproceedings{c5588eeed95949c485789c35d2a6458f,

title = "Effects of water in wind turbine oils on the gear load capacity",

abstract = "Besides mineral-based gear oils, an increasing number of synthetic gear oils, e.g., polyalphaolefins, are found in wind turbine gear boxes. Water may condensate in the gear housing and can contaminate the lubricating oil. This may alter the lubricant performance and reduce the lifetime of the components. Gear running tests show different effects of water contaminated lubricants on different types of gear damages. Lubricant related gear failures that are typical for critical lubricating conditions showed no reduction of the gear load capacity. In contrast, test runs at higher lubricating film thickness showed a negative influence on the pitting load carrying capacity. There might be an increased risk of early pitting damages due hydrogen-induced stress corrosion cracking when unsolved water is available. This correlated with documented formation of pitting damages in tests with and without water contamination. This is an abstract of a paper presented at the 2012 STLE Annual Meeting and Exhibition (St Louis, MO 5/6-10/2012).",

keywords = "Contacts: Contact mechanics, Gears: Gears (general), Maintenance: Water contamination",

author = "Thomas Tobie and Karsten Stahl and H{\"o}hn, \{Bernd Robert\} and Jochen Witzig",

year = "2012",

language = "English",

isbn = "9781622762484",

series = "Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012",

pages = "459--461",

booktitle = "Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012",

note = "Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012 ; Conference date: 06-05-2012 Through 10-05-2012",

}

Tobie, T, Stahl, K , Höhn, BR & Witzig, J 2012, Effects of water in wind turbine oils on the gear load capacity. in Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012. Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012, pp. 459-461, Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012, St. Louis, MO, United States, 6/05/12.

Effects of water in wind turbine oils on the gear load capacity. / Tobie, Thomas; Stahl, Karsten ; Höhn, Bernd Robert et al.
Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012. 2012. p. 459-461 (Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effects of water in wind turbine oils on the gear load capacity

AU - Tobie, Thomas

AU - Stahl, Karsten

AU - Höhn, Bernd Robert

AU - Witzig, Jochen

PY - 2012

Y1 - 2012

N2 - Besides mineral-based gear oils, an increasing number of synthetic gear oils, e.g., polyalphaolefins, are found in wind turbine gear boxes. Water may condensate in the gear housing and can contaminate the lubricating oil. This may alter the lubricant performance and reduce the lifetime of the components. Gear running tests show different effects of water contaminated lubricants on different types of gear damages. Lubricant related gear failures that are typical for critical lubricating conditions showed no reduction of the gear load capacity. In contrast, test runs at higher lubricating film thickness showed a negative influence on the pitting load carrying capacity. There might be an increased risk of early pitting damages due hydrogen-induced stress corrosion cracking when unsolved water is available. This correlated with documented formation of pitting damages in tests with and without water contamination. This is an abstract of a paper presented at the 2012 STLE Annual Meeting and Exhibition (St Louis, MO 5/6-10/2012).

AB - Besides mineral-based gear oils, an increasing number of synthetic gear oils, e.g., polyalphaolefins, are found in wind turbine gear boxes. Water may condensate in the gear housing and can contaminate the lubricating oil. This may alter the lubricant performance and reduce the lifetime of the components. Gear running tests show different effects of water contaminated lubricants on different types of gear damages. Lubricant related gear failures that are typical for critical lubricating conditions showed no reduction of the gear load capacity. In contrast, test runs at higher lubricating film thickness showed a negative influence on the pitting load carrying capacity. There might be an increased risk of early pitting damages due hydrogen-induced stress corrosion cracking when unsolved water is available. This correlated with documented formation of pitting damages in tests with and without water contamination. This is an abstract of a paper presented at the 2012 STLE Annual Meeting and Exhibition (St Louis, MO 5/6-10/2012).

KW - Contacts: Contact mechanics

KW - Gears: Gears (general)

KW - Maintenance: Water contamination

UR - https://www.scopus.com/pages/publications/84884996602

M3 - Conference contribution

AN - SCOPUS:84884996602

SN - 9781622762484

T3 - Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012

SP - 459

EP - 461

BT - Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012

T2 - Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012

Y2 - 6 May 2012 through 10 May 2012

ER -

Effects of water in wind turbine oils on the gear load capacity

Abstract

Publication series

Conference

UN SDGs

Keywords

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Cite this