JPS5647719A - Diagnosing device for vibration - Google Patents

Diagnosing device for vibration

Info

Publication number
JPS5647719A
JPS5647719A JP12380579A JP12380579A JPS5647719A JP S5647719 A JPS5647719 A JP S5647719A JP 12380579 A JP12380579 A JP 12380579A JP 12380579 A JP12380579 A JP 12380579A JP S5647719 A JPS5647719 A JP S5647719A
Authority
JP
Japan
Prior art keywords
signals
put out
vibration
inputted
frequency
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.)
Granted
Application number
JP12380579A
Other languages
Japanese (ja)
Other versions
JPS6122892B2 (en
Inventor
Masafumi Takechi
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 JP12380579A priority Critical patent/JPS5647719A/en
Publication of JPS5647719A publication Critical patent/JPS5647719A/en
Publication of JPS6122892B2 publication Critical patent/JPS6122892B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To detect abnormal vibration early by a method wherein axial vibration signals are analyzed to frequency corresponding to operation modes, and the frequency is compared with set values every each component corresponding to each operation mode.
CONSTITUTION: Axial vibration signals 22 detected by means of a vibration detector 21 are inputted to a harmonic analyzer 101, harmonic analyzing signals 106 indicating magnitude every frequency component are put out while the signals 22 are inputted to a detection rectifier 102, and overall signals 107 are put out. These signals 106, 107 are inputted to a level comparator 104 with plant condition signals 108 put out from a plant condition discriminator 103, and compared with each frequency component, which corresponds to each plant condition put out from a level setter 105, and overall health level signals 109, and abnormal decision signals 110 are put out from the level comparator 104 when the signals are abnormal.
COPYRIGHT: (C)1981,JPO&Japio
JP12380579A 1979-09-28 1979-09-28 Diagnosing device for vibration Granted JPS5647719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12380579A JPS5647719A (en) 1979-09-28 1979-09-28 Diagnosing device for vibration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12380579A JPS5647719A (en) 1979-09-28 1979-09-28 Diagnosing device for vibration

Publications (2)

Publication Number Publication Date
JPS5647719A true JPS5647719A (en) 1981-04-30
JPS6122892B2 JPS6122892B2 (en) 1986-06-03

Family

ID=14869749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12380579A Granted JPS5647719A (en) 1979-09-28 1979-09-28 Diagnosing device for vibration

Country Status (1)

Country Link
JP (1) JPS5647719A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157024A (en) * 1984-01-27 1985-08-17 Mitsubishi Heavy Ind Ltd Method for monitoring vibration of rotating machine
JPS628023A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine
JPS628024A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine
JPS628025A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157024A (en) * 1984-01-27 1985-08-17 Mitsubishi Heavy Ind Ltd Method for monitoring vibration of rotating machine
JPS628023A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine
JPS628024A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine
JPS628025A (en) * 1985-07-04 1987-01-16 Ishikawajima Harima Heavy Ind Co Ltd Diagnosis of rotary machine

Also Published As

Publication number Publication date
JPS6122892B2 (en) 1986-06-03

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