Development of a Positive Lubrication System for Space Application

The success of a spacecraft mission depends to a great extent on the performance of the moving mechanical systems. The most common mode of failure in these systems is tribological. Tribological failures occur mainly due to non availability of lubricant at the working zone of the bearings as a result...

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Autores principales:	Krishnan Sathyan, Konchady Gopinath, Hung-Yao Hsu, Sang Heon Lee
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2010
Materias:	positive lubrication spacecraft momentum wheels space tribology Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/041ce4e4dee24e95bde943435674e72d
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id	oai:doaj.org-article:041ce4e4dee24e95bde943435674e72d
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spelling	oai:doaj.org-article:041ce4e4dee24e95bde943435674e72d2021-11-05T09:27:17ZDevelopment of a Positive Lubrication System for Space Application1881-219810.2474/trol.5.40https://doaj.org/article/041ce4e4dee24e95bde943435674e72d2010-02-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/5/1/5_1_40/_pdf/-char/enhttps://doaj.org/toc/1881-2198The success of a spacecraft mission depends to a great extent on the performance of the moving mechanical systems. The most common mode of failure in these systems is tribological. Tribological failures occur mainly due to non availability of lubricant at the working zone of the bearings as a result of degradation, evaporation and creep. The life of these moving mechanical systems could be extended, if lubricant is replenished by some means. This paper describes the development of a positive lubrication system named as command lubrication system (CLS). This is an active lubrication system which when actuated by external commands delivers lubricant to the bearings. It is actuated only when there is a demand for lubricant indicated by increase in frictional torque or bearing temperature. The outstanding feature of this system is that the lubricant is stored under ambient pressure and hence less chance of leakage. The CLS can solve the lubrication problem of spacecraft systems which require very long mission life of more than 20 years. It is also suitable to tribosystems in terrestrial devices.Krishnan SathyanKonchady GopinathHung-Yao HsuSang Heon LeeJapanese Society of Tribologistsarticlepositive lubricationspacecraftmomentum wheelsspace tribologyPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 5, Iss 1, Pp 40-45 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	positive lubrication spacecraft momentum wheels space tribology Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	positive lubrication spacecraft momentum wheels space tribology Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Krishnan Sathyan Konchady Gopinath Hung-Yao Hsu Sang Heon Lee Development of a Positive Lubrication System for Space Application
description	The success of a spacecraft mission depends to a great extent on the performance of the moving mechanical systems. The most common mode of failure in these systems is tribological. Tribological failures occur mainly due to non availability of lubricant at the working zone of the bearings as a result of degradation, evaporation and creep. The life of these moving mechanical systems could be extended, if lubricant is replenished by some means. This paper describes the development of a positive lubrication system named as command lubrication system (CLS). This is an active lubrication system which when actuated by external commands delivers lubricant to the bearings. It is actuated only when there is a demand for lubricant indicated by increase in frictional torque or bearing temperature. The outstanding feature of this system is that the lubricant is stored under ambient pressure and hence less chance of leakage. The CLS can solve the lubrication problem of spacecraft systems which require very long mission life of more than 20 years. It is also suitable to tribosystems in terrestrial devices.
format	article
author	Krishnan Sathyan Konchady Gopinath Hung-Yao Hsu Sang Heon Lee
author_facet	Krishnan Sathyan Konchady Gopinath Hung-Yao Hsu Sang Heon Lee
author_sort	Krishnan Sathyan
title	Development of a Positive Lubrication System for Space Application
title_short	Development of a Positive Lubrication System for Space Application
title_full	Development of a Positive Lubrication System for Space Application
title_fullStr	Development of a Positive Lubrication System for Space Application
title_full_unstemmed	Development of a Positive Lubrication System for Space Application
title_sort	development of a positive lubrication system for space application
publisher	Japanese Society of Tribologists
publishDate	2010
url	https://doaj.org/article/041ce4e4dee24e95bde943435674e72d
work_keys_str_mv	AT krishnansathyan developmentofapositivelubricationsystemforspaceapplication AT konchadygopinath developmentofapositivelubricationsystemforspaceapplication AT hungyaohsu developmentofapositivelubricationsystemforspaceapplication AT sangheonlee developmentofapositivelubricationsystemforspaceapplication
_version_	1718444326959185920

Development of a Positive Lubrication System for Space Application

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