Effect of the static pressure on the power dissipation of gearboxes.
Saved in:
| Title: | Effect of the static pressure on the power dissipation of gearboxes. |
|---|---|
| Authors: | Concli, Franco1 (AUTHOR) franco.concli@unibz.it, Gorla, Carlo2 (AUTHOR), Rosa, Francesco2 (AUTHOR), Conrado, Edoardo2 (AUTHOR) |
| Source: | Lubrication Science. Dec2019, Vol. 31 Issue 8, p347-355. 9p. |
| Subjects: | Static pressure, Lubrication & lubricants, Lubrication systems, System failures, Gearboxes, Housing, Computer simulation |
| Abstract: | Many researches were conducted in the past in order to maximise the efficiency of gearboxes, and for many of the sources of power loss, very effective models and tools are already available and can significantly help to optimise the design. Nevertheless, for the load‐independent power losses of gears only in the recent years some progress has been made. Concerning these losses, numerical simulations can help the designers in optimising the internal shape of the casing, thus ensuring the proper lubrication of all the components and reducing the undesired splashing losses. The amount of lubricant plays a fundamental role: A reduction of the lubricant can be critical from the point of view of adequate lubrication and of failures of the system due to wear, scuffing, and pitting but, on the other side, an excessive amount of lubricant leads to additional power dissipation and could even determine an overheating of the system. Another possibility to improve efficiency could be represented by the reduction of the pressure inside the housing: in this paper, the effect of the static pressure on the load‐independent power losses both for complete‐ and dip‐lubrication has been deeply studied. The numerical results, validated by experimental data, show that a reduction up to 15% of the churning losses can be achieved without reducing the amount of lubricant, that is, without increasing the risk of failures related to lubrication. Based on the results obtained, the reduction of the pressure of the housing proves to be a way to improve the efficiency, provided the related engineering issues are also addressed. [ABSTRACT FROM AUTHOR] |
| Copyright of Lubrication Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 139502238 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Effect of the static pressure on the power dissipation of gearboxes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Concli%2C+Franco%22">Concli, Franco</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> franco.concli@unibz.it</i><br /><searchLink fieldCode="AR" term="%22Gorla%2C+Carlo%22">Gorla, Carlo</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rosa%2C+Francesco%22">Rosa, Francesco</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Conrado%2C+Edoardo%22">Conrado, Edoardo</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Lubrication+Science%22">Lubrication Science</searchLink>. Dec2019, Vol. 31 Issue 8, p347-355. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Static+pressure%22">Static pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Lubrication+%26+lubricants%22">Lubrication & lubricants</searchLink><br /><searchLink fieldCode="DE" term="%22Lubrication+systems%22">Lubrication systems</searchLink><br /><searchLink fieldCode="DE" term="%22System+failures%22">System failures</searchLink><br /><searchLink fieldCode="DE" term="%22Gearboxes%22">Gearboxes</searchLink><br /><searchLink fieldCode="DE" term="%22Housing%22">Housing</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Many researches were conducted in the past in order to maximise the efficiency of gearboxes, and for many of the sources of power loss, very effective models and tools are already available and can significantly help to optimise the design. Nevertheless, for the load‐independent power losses of gears only in the recent years some progress has been made. Concerning these losses, numerical simulations can help the designers in optimising the internal shape of the casing, thus ensuring the proper lubrication of all the components and reducing the undesired splashing losses. The amount of lubricant plays a fundamental role: A reduction of the lubricant can be critical from the point of view of adequate lubrication and of failures of the system due to wear, scuffing, and pitting but, on the other side, an excessive amount of lubricant leads to additional power dissipation and could even determine an overheating of the system. Another possibility to improve efficiency could be represented by the reduction of the pressure inside the housing: in this paper, the effect of the static pressure on the load‐independent power losses both for complete‐ and dip‐lubrication has been deeply studied. The numerical results, validated by experimental data, show that a reduction up to 15% of the churning losses can be achieved without reducing the amount of lubricant, that is, without increasing the risk of failures related to lubrication. Based on the results obtained, the reduction of the pressure of the housing proves to be a way to improve the efficiency, provided the related engineering issues are also addressed. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Lubrication Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=139502238 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/ls.1476 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 347 Subjects: – SubjectFull: Static pressure Type: general – SubjectFull: Lubrication & lubricants Type: general – SubjectFull: Lubrication systems Type: general – SubjectFull: System failures Type: general – SubjectFull: Gearboxes Type: general – SubjectFull: Housing Type: general – SubjectFull: Computer simulation Type: general Titles: – TitleFull: Effect of the static pressure on the power dissipation of gearboxes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Concli, Franco – PersonEntity: Name: NameFull: Gorla, Carlo – PersonEntity: Name: NameFull: Rosa, Francesco – PersonEntity: Name: NameFull: Conrado, Edoardo IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 09540075 Numbering: – Type: volume Value: 31 – Type: issue Value: 8 Titles: – TitleFull: Lubrication Science Type: main |
| ResultId | 1 |
