WO2008117765A8 - 極低速回転機械の異常診断方法及び装置 - Google Patents

極低速回転機械の異常診断方法及び装置 Download PDF

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Publication number
WO2008117765A8
WO2008117765A8 PCT/JP2008/055351 JP2008055351W WO2008117765A8 WO 2008117765 A8 WO2008117765 A8 WO 2008117765A8 JP 2008055351 W JP2008055351 W JP 2008055351W WO 2008117765 A8 WO2008117765 A8 WO 2008117765A8
Authority
WO
WIPO (PCT)
Prior art keywords
low speed
extremely low
speed rotary
bearing
rotary machine
Prior art date
Application number
PCT/JP2008/055351
Other languages
English (en)
French (fr)
Other versions
WO2008117765A1 (ja
Inventor
Tsunemi Murayama
Original Assignee
Nippon Steel Corp
Tsunemi Murayama
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, Tsunemi Murayama filed Critical Nippon Steel Corp
Priority to EP08722668.4A priority Critical patent/EP2131177A4/en
Priority to CN200880003579XA priority patent/CN101617207B/zh
Priority to KR1020097015812A priority patent/KR101178962B1/ko
Priority to US12/593,195 priority patent/US8534128B2/en
Publication of WO2008117765A1 publication Critical patent/WO2008117765A1/ja
Publication of WO2008117765A8 publication Critical patent/WO2008117765A8/ja

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G01M13/045—Acoustic or vibration analysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

本発明は、１０ｒｐｍ以下の極低速回転軸受の異常を、音響信号を用いて精度が高く安価な診断方法および装置を提供するもので、１０ｒｐｍ以下の極低速回転機械のころがり軸受から発生する音響信号を１０ｋＨｚ以下の集音機能をもつ検出端を用いて検出して、周波数分析によってスペクトル分布を求め、処理して得られた周波数分析波形の軸受の固有振動数以上の周波数のスペクトル平均値または実効値を基準値と比較し、このスペクトル平均値または実効値が基準値を超えたとき軸受異常と判定する。
PCT/JP2008/055351 2007-03-26 2008-03-17 極低速回転機械の異常診断方法及び装置 WO2008117765A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08722668.4A EP2131177A4 (en) 2007-03-26 2008-03-17 METHOD AND DEVICE FOR ABNORMITY DIAGNOSIS FOR AN EXTREMELY SLOW ROTATING MACHINE
CN200880003579XA CN101617207B (zh) 2007-03-26 2008-03-17 超低速旋转设备的异常诊断方法及装置
KR1020097015812A KR101178962B1 (ko) 2007-03-26 2008-03-17 극저속 회전 기계의 이상 진단 방법 및 장치
US12/593,195 US8534128B2 (en) 2007-03-26 2008-03-17 Method and system for abnormality diagnosis of very low speed rotating machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-079915 2007-03-26
JP2007079915 2007-03-26

Publications (2)

Publication Number Publication Date
WO2008117765A1 WO2008117765A1 (ja) 2008-10-02
WO2008117765A8 true WO2008117765A8 (ja) 2009-08-13

Family

ID=39788500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055351 WO2008117765A1 (ja) 2007-03-26 2008-03-17 極低速回転機械の異常診断方法及び装置

Country Status (6)

Country Link
US (1) US8534128B2 (ja)
EP (1) EP2131177A4 (ja)
JP (1) JP2008268187A (ja)
KR (1) KR101178962B1 (ja)
CN (1) CN101617207B (ja)
WO (1) WO2008117765A1 (ja)

Cited By (1)

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CN110546692A (zh) * 2017-03-17 2019-12-06 惠普发展公司，有限责任合伙企业 利用超声波麦克风的出故障的部件的识别

Also Published As

Publication number Publication date
US8534128B2 (en) 2013-09-17
US20100116060A1 (en) 2010-05-13
EP2131177A1 (en) 2009-12-09
JP2008268187A (ja) 2008-11-06
CN101617207B (zh) 2011-09-28
EP2131177A4 (en) 2016-09-21
KR20090094171A (ko) 2009-09-03
KR101178962B1 (ko) 2012-08-31
WO2008117765A1 (ja) 2008-10-02
CN101617207A (zh) 2009-12-30

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