JPS56622A - Abnormal vibration diagnosing unit - Google Patents

Abnormal vibration diagnosing unit

Info

Publication number
JPS56622A
JPS56622A JP7466979A JP7466979A JPS56622A JP S56622 A JPS56622 A JP S56622A JP 7466979 A JP7466979 A JP 7466979A JP 7466979 A JP7466979 A JP 7466979A JP S56622 A JPS56622 A JP S56622A
Authority
JP
Japan
Prior art keywords
rotation frequency
frequency
vibration
signals
unit
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
JP7466979A
Other languages
Japanese (ja)
Inventor
Masuo Furudono
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 JP7466979A priority Critical patent/JPS56622A/en
Publication of JPS56622A publication Critical patent/JPS56622A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To simplify the waveform processing to shorten the fetching interval of data, by providing a vibration monitor unit in vibration analysis of a rotary machine to make it possible to take in displacement signals from axes different in rotation frequency.
CONSTITUTION: Displacement signal Xi(t) generated by axia vibration of a rotary machine and frequency signal fNi(t) synchronized with the rotation frequency are supplied to vibration monitor units 5aW5n. Frequency fN synchronized with the rotation frequency, frequency fMON other than the rotation frequency, amplitude AN of rotation frequency synchronizing components, and amplitude AMON of rotation frequency asynchronizing components which are obtained in units 5aW5n are input to waveform synthesizing circuits 6aW6n and are synthesized into signals S1WSn respectively and are supplied to waveform processing unit 3 through A/D converters 1aW1n and buffer memory 4. Then, unit 3 subjects these signals to a prescribed processing to obtain an objective value.
COPYRIGHT: (C)1981,JPO&Japio
JP7466979A 1979-06-15 1979-06-15 Abnormal vibration diagnosing unit Pending JPS56622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7466979A JPS56622A (en) 1979-06-15 1979-06-15 Abnormal vibration diagnosing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7466979A JPS56622A (en) 1979-06-15 1979-06-15 Abnormal vibration diagnosing unit

Publications (1)

Publication Number Publication Date
JPS56622A true JPS56622A (en) 1981-01-07

Family

ID=13553863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7466979A Pending JPS56622A (en) 1979-06-15 1979-06-15 Abnormal vibration diagnosing unit

Country Status (1)

Country Link
JP (1) JPS56622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57179716A (en) * 1981-04-30 1982-11-05 Sumitomo Metal Ind Ltd Fault detector
JPS5963528A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd How to diagnose rotating machinery

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127771A (en) * 1975-04-30 1976-11-08 Hitachi Ltd Vibration supervisory device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127771A (en) * 1975-04-30 1976-11-08 Hitachi Ltd Vibration supervisory device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57179716A (en) * 1981-04-30 1982-11-05 Sumitomo Metal Ind Ltd Fault detector
JPS5963528A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd How to diagnose rotating machinery

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