Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings

The purpose of this paper is to measure the non-linear dynamic properties of O-rings in wide frequency ranges including in the ultra-high-speed rotational regions and to calculate the stability threshold of herringbone grooved aerodynamic journal bearings with O-rings support. First, the Voigt model...

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Autores principales:	Jun Tomioka, Norifumi Miyanaga
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2008
Materias:	flexible elements herringbone bearing frequency dependence stability threshold o-rings 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/4df195b3f67b4abdb1377d45ded2f77d
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spelling	oai:doaj.org-article:4df195b3f67b4abdb1377d45ded2f77d2021-11-05T09:28:35ZMeasurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings1881-219810.2474/trol.3.366https://doaj.org/article/4df195b3f67b4abdb1377d45ded2f77d2008-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/3/7/3_7_366/_pdf/-char/enhttps://doaj.org/toc/1881-2198The purpose of this paper is to measure the non-linear dynamic properties of O-rings in wide frequency ranges including in the ultra-high-speed rotational regions and to calculate the stability threshold of herringbone grooved aerodynamic journal bearings with O-rings support. First, the Voigt model was used as a rheological model of the O-rings, and the spring and the damping coefficients were evaluated in a wide frequency range from 0.5 to 4 kHz. Then, the stability threshold of the herringbone grooved aerodynamic journal bearings supported by O-rings was calculated. In this calculation, the compressible Reynolds equation based on the Narrow Groove Theory was solved by the perturbation method. Finally, the theoretical results were compared with the experimental results. The calculated results had a good agreement with the experimental onesJun TomiokaNorifumi MiyanagaJapanese Society of Tribologistsarticleflexible elementsherringbone bearingfrequency dependencestability thresholdo-ringsPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 3, Iss 7, Pp 366-369 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	flexible elements herringbone bearing frequency dependence stability threshold o-rings Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	flexible elements herringbone bearing frequency dependence stability threshold o-rings Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Jun Tomioka Norifumi Miyanaga Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
description	The purpose of this paper is to measure the non-linear dynamic properties of O-rings in wide frequency ranges including in the ultra-high-speed rotational regions and to calculate the stability threshold of herringbone grooved aerodynamic journal bearings with O-rings support. First, the Voigt model was used as a rheological model of the O-rings, and the spring and the damping coefficients were evaluated in a wide frequency range from 0.5 to 4 kHz. Then, the stability threshold of the herringbone grooved aerodynamic journal bearings supported by O-rings was calculated. In this calculation, the compressible Reynolds equation based on the Narrow Groove Theory was solved by the perturbation method. Finally, the theoretical results were compared with the experimental results. The calculated results had a good agreement with the experimental ones
format	article
author	Jun Tomioka Norifumi Miyanaga
author_facet	Jun Tomioka Norifumi Miyanaga
author_sort	Jun Tomioka
title	Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
title_short	Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
title_full	Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
title_fullStr	Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
title_full_unstemmed	Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings
title_sort	measurement of dynamic properties of o-rings and stability threshold of flexibly supported herringbone grooved aerodynamic journal bearings
publisher	Japanese Society of Tribologists
publishDate	2008
url	https://doaj.org/article/4df195b3f67b4abdb1377d45ded2f77d
work_keys_str_mv	AT juntomioka measurementofdynamicpropertiesoforingsandstabilitythresholdofflexiblysupportedherringbonegroovedaerodynamicjournalbearings AT norifumimiyanaga measurementofdynamicpropertiesoforingsandstabilitythresholdofflexiblysupportedherringbonegroovedaerodynamicjournalbearings
_version_	1718444347468283904

Measurement of Dynamic Properties of O-rings and Stability Threshold of Flexibly Supported Herringbone Grooved Aerodynamic Journal Bearings

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