Title:
METHOD OF ASSESSING ROLLING CONTACT METALLIC MATERIAL SHEAR STRESS FATIGUE VALUES, AND METHOD AND DEVICE USING SAME THAT ESTIMATE FATIGUE LIMIT SURFACE PRESSURE
Document Type and Number:
WIPO Patent Application WO/2011/115101
Kind Code:
A1
Abstract:
A method of assessing rolling contact metallic material shear stress fatigue values comprises the steps of deriving, by an ultrasound torsion fatigue test, a relationship between a rolling contact metallic material shear stress amplitude and a load cycles (S1); and determining, from the relationship between the shear stress amplitude and the load cycles derived in the test step (S1), a shear fatigue strength τlim in an extended longevity region according to a set reference (S2). The ultrasound torsion fatigue test is a complete alternating torsion fatigue test, which applies torsion oscillation to a test part (1), wherein the torsion oscillation is such that the torsion is symmetrical in the positive rotational direction and the inverse rotational direction.
Inventors:
MATSUBARA YUKIO (JP)
SAKANAKA NORIAKI (JP)
ISHII HITOSHI (JP)
SAKANAKA NORIAKI (JP)
ISHII HITOSHI (JP)
Application Number:
PCT/JP2011/056037
Publication Date:
September 22, 2011
Filing Date:
March 15, 2011
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
MATSUBARA YUKIO (JP)
SAKANAKA NORIAKI (JP)
ISHII HITOSHI (JP)
MATSUBARA YUKIO (JP)
SAKANAKA NORIAKI (JP)
ISHII HITOSHI (JP)
International Classes:
G01N3/34
Foreign References:
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| JP2007032662A | 2007-02-08 | |||
| JP2002243604A | 2002-08-28 | |||
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| JP2009281738A | 2009-12-03 | |||
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Other References:
YOSHINOBU SHIMAMURA ET AL.: "Choonpa Nejiri Hiro Shiken Sochi no Kokyodo Hagane eno Tekiyo", THE SOCIETY OF MATERIALS SCIENCE, JAPAN DAI 58 KI GAKUJUTSU KOENKAI KOEN RONBUNSHU, vol. 58TH, 22 May 2009 (2009-05-22), pages 97 - 98, XP008168714
JUN IIJIMA ET AL.: "High cycle torsion fatigue characteristic by ultrasonic fatigue testing method", THE JAPAN SOCIETY OF MECHANICAL ENGINEERS TOKAI SHIBU SOKAI KOENKAI KOEN RONBUNSHU, vol. 54TH, no. 053-1, 1 March 2005 (2005-03-01), pages 131 - 132, XP008168815
NORIAKI SAKANAKA ET AL.: "Choonpa Nejiri Hiro Shikenki ni yoru Jikuuke Hagene JIS-SUJ2 no Hyoka", JAPANESE SOCIETY OF TRIBOLOGISTS TRIBOLOGY KAIGI YOKOSHU, 1 September 2010 (2010-09-01), pages 253 - 254, XP008168710
NORIAKI SAKANAKA ET AL.: "Korogari Jikuuke Hagane o Hyoka suru Tameno Choonpa Nejiri Hiro Shikenki no Kaihatsu", ULTRASONIC TECHNOLOGY, vol. 23, no. 2, 1 April 2011 (2011-04-01), pages 63 - 67, XP008168716
NTN TECHNICAL REVIEW, 2001, pages 53 - 60
Y. MURAKAMI; C. SAKAE; S. HAMADA: "Engineering AgainstFatigue", 1997, UNIV. OF SHEFFIELD, pages: 473
T.A. HARRIS: "Rolling Bearing Analysis", 1991, WILLEY INTERSCIENCE, pages: 147
"Nippon Zairyo Gakkai, Kyoto", 2006, SOCIETY OF MATERIAL ENGINEERING, article "Nippon Zairyo Gakkai, Kaitei Zairyo Kyodo-Gaku", pages: 94
"Nippon Zairyo Gakkai, Kaitei Zairyo Kyodo-Gaku", NIPPON ZAIRYO GAKKAI, KYOTO, 2006, pages 211
Y. MATSUBARA; H. HAMADA: "ASTM STP 1465", 2007, article "Bearing Steel Technology", pages: 153 - 166
M.A. DEVANATHAN; Z. STACHURSKI: "The adsorption and diffusion of electrolytic hydrogen in palladium", PROC. ROYAL SOC., 1962, pages 90 - 102, XP008177394, DOI: doi: 10.1098/rspa.1962.0205
See also references of EP 2549261A4
JUN IIJIMA ET AL.: "High cycle torsion fatigue characteristic by ultrasonic fatigue testing method", THE JAPAN SOCIETY OF MECHANICAL ENGINEERS TOKAI SHIBU SOKAI KOENKAI KOEN RONBUNSHU, vol. 54TH, no. 053-1, 1 March 2005 (2005-03-01), pages 131 - 132, XP008168815
NORIAKI SAKANAKA ET AL.: "Choonpa Nejiri Hiro Shikenki ni yoru Jikuuke Hagene JIS-SUJ2 no Hyoka", JAPANESE SOCIETY OF TRIBOLOGISTS TRIBOLOGY KAIGI YOKOSHU, 1 September 2010 (2010-09-01), pages 253 - 254, XP008168710
NORIAKI SAKANAKA ET AL.: "Korogari Jikuuke Hagane o Hyoka suru Tameno Choonpa Nejiri Hiro Shikenki no Kaihatsu", ULTRASONIC TECHNOLOGY, vol. 23, no. 2, 1 April 2011 (2011-04-01), pages 63 - 67, XP008168716
NTN TECHNICAL REVIEW, 2001, pages 53 - 60
Y. MURAKAMI; C. SAKAE; S. HAMADA: "Engineering AgainstFatigue", 1997, UNIV. OF SHEFFIELD, pages: 473
T.A. HARRIS: "Rolling Bearing Analysis", 1991, WILLEY INTERSCIENCE, pages: 147
"Nippon Zairyo Gakkai, Kyoto", 2006, SOCIETY OF MATERIAL ENGINEERING, article "Nippon Zairyo Gakkai, Kaitei Zairyo Kyodo-Gaku", pages: 94
"Nippon Zairyo Gakkai, Kaitei Zairyo Kyodo-Gaku", NIPPON ZAIRYO GAKKAI, KYOTO, 2006, pages 211
Y. MATSUBARA; H. HAMADA: "ASTM STP 1465", 2007, article "Bearing Steel Technology", pages: 153 - 166
M.A. DEVANATHAN; Z. STACHURSKI: "The adsorption and diffusion of electrolytic hydrogen in palladium", PROC. ROYAL SOC., 1962, pages 90 - 102, XP008177394, DOI: doi: 10.1098/rspa.1962.0205
See also references of EP 2549261A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
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