JPS56147022A - Method and device for discrimination of vibration of revolving shaft - Google Patents

Method and device for discrimination of vibration of revolving shaft

Info

Publication number
JPS56147022A
JPS56147022A JP4960180A JP4960180A JPS56147022A JP S56147022 A JPS56147022 A JP S56147022A JP 4960180 A JP4960180 A JP 4960180A JP 4960180 A JP4960180 A JP 4960180A JP S56147022 A JPS56147022 A JP S56147022A
Authority
JP
Japan
Prior art keywords
unbalance
change rates
occurrence
amplitude
comparators
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
JP4960180A
Other languages
Japanese (ja)
Inventor
Kazuo Sato
Masakazu Takazumi
Hironori Shiohata
Mototsugu Omori
Motohiro Shiga
Fumio Fujisawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4960180A priority Critical patent/JPS56147022A/en
Priority to US06/255,105 priority patent/US4453407A/en
Publication of JPS56147022A publication Critical patent/JPS56147022A/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
    • 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining unbalance
    • G01M1/16—Determining unbalance by oscillating or rotating the body to be tested
    • G01M1/22—Determining unbalance by oscillating or rotating the body to be tested and converting vibrations due to unbalance into electric variables

Landscapes

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

Abstract

PURPOSE:To automatically and continuously discriminate and display the contigent occurrence of unbalance phenomena by setting plural amplitude change rates with respect to unbalance vibration components in a revolving machine such as atomic power generating plants. CONSTITUTION:The vibrations detected by a detector 5 with multi-bearing rotor systems 1-3 are A/D converted 8 via a vibrometer 7 and are applied to a processing unit 9. The unbalance vibration data obtained in the unit 9 are sent to a change rate operator 12 via an amplitude comparator 11. The calculated change rates are sent successively to comparators 13-16. In the respective comparators, the magnitudes and differences of the amplitude change rates at the two points of times before and after are compared with prescribed values, and such comparing process is accomplished with different set values. As a result, the contingent occurrence of unbalance vibrations is discriminated and displayed 18.
JP4960180A 1980-04-17 1980-04-17 Method and device for discrimination of vibration of revolving shaft Pending JPS56147022A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4960180A JPS56147022A (en) 1980-04-17 1980-04-17 Method and device for discrimination of vibration of revolving shaft
US06/255,105 US4453407A (en) 1980-04-17 1981-04-17 Vibration diagnosis method and apparatus for rotary machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4960180A JPS56147022A (en) 1980-04-17 1980-04-17 Method and device for discrimination of vibration of revolving shaft

Publications (1)

Publication Number Publication Date
JPS56147022A true JPS56147022A (en) 1981-11-14

Family

ID=12835746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4960180A Pending JPS56147022A (en) 1980-04-17 1980-04-17 Method and device for discrimination of vibration of revolving shaft

Country Status (1)

Country Link
JP (1) JPS56147022A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523438A (en) * 1978-08-09 1980-02-19 Hitachi Ltd Supervisory method for vibration of rotation axis

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523438A (en) * 1978-08-09 1980-02-19 Hitachi Ltd Supervisory method for vibration of rotation axis

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