JPS56122929A - Monitoring method for periodically moving object - Google Patents

Monitoring method for periodically moving object

Info

Publication number
JPS56122929A
JPS56122929A JP2758280A JP2758280A JPS56122929A JP S56122929 A JPS56122929 A JP S56122929A JP 2758280 A JP2758280 A JP 2758280A JP 2758280 A JP2758280 A JP 2758280A JP S56122929 A JPS56122929 A JP S56122929A
Authority
JP
Japan
Prior art keywords
memory device
stored
abnormality
reference value
preliminarily
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2758280A
Other languages
Japanese (ja)
Inventor
Kazuhiro Takeyasu
Shuichi Yasuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2758280A priority Critical patent/JPS56122929A/en
Publication of JPS56122929A publication Critical patent/JPS56122929A/en
Pending legal-status Critical Current

Links

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
    • G01M13/045—Acoustic or vibration analysis

Landscapes

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

Abstract

PURPOSE:To grasp an abnormality in the initial stage and the degree of it with a high precision for the occurrence of the abnormality to forecast the life of the periodically moving object accurately, by obtaining data accompanied with the lapse of time concerning vibration of this object. CONSTITUTION:The output of transducer 1 fitted to the outside wheel of the bearing is inputted to sampling circuit 2 and is sampled at every fixed period and is converted to digital data by the A/D converter and is stored in memory device 3. operating part 4 fetches N pieces of newest sampling values stored at the timing synchronized with the sampling period. Fetched time series data is substituted into the numerical expression model which is given to memory device 5 preliminarily for fixing the system, and the most likelihood presuming method is used to determine system parameters. System parameters for the normal bearing are stored preliminarily in memory device 5 as the reference value, and operating part 4 calculates dissociation degree J of calculated parameters from the reference value and uses output device 6 to record it.
JP2758280A 1980-03-04 1980-03-04 Monitoring method for periodically moving object Pending JPS56122929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2758280A JPS56122929A (en) 1980-03-04 1980-03-04 Monitoring method for periodically moving object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2758280A JPS56122929A (en) 1980-03-04 1980-03-04 Monitoring method for periodically moving object

Publications (1)

Publication Number Publication Date
JPS56122929A true JPS56122929A (en) 1981-09-26

Family

ID=12224953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2758280A Pending JPS56122929A (en) 1980-03-04 1980-03-04 Monitoring method for periodically moving object

Country Status (1)

Country Link
JP (1) JPS56122929A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006161677A (en) * 2004-12-07 2006-06-22 Mitsubishi Electric Corp Compressor inspection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006161677A (en) * 2004-12-07 2006-06-22 Mitsubishi Electric Corp Compressor inspection device

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