JPS56133617A - Vibration monitoring method of rotary machine - Google Patents

Vibration monitoring method of rotary machine

Info

Publication number
JPS56133617A
JPS56133617A JP3612780A JP3612780A JPS56133617A JP S56133617 A JPS56133617 A JP S56133617A JP 3612780 A JP3612780 A JP 3612780A JP 3612780 A JP3612780 A JP 3612780A JP S56133617 A JPS56133617 A JP S56133617A
Authority
JP
Japan
Prior art keywords
vibration
amplitude
estimated value
control arithmetic
arithmetic device
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
JP3612780A
Other languages
Japanese (ja)
Inventor
Motohiro Shiga
Kazuo Sato
Hironori Shiohata
Mototsugu Omori
Masakazu Takazumi
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 JP3612780A priority Critical patent/JPS56133617A/en
Publication of JPS56133617A publication Critical patent/JPS56133617A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE:To prevent a rotary machine from vibrating abnormally during the performance of discrimination by estimating the amplitude of vibration after data processing and by discriminating a fault on the basis of the estimated value. CONSTITUTION:The output signal of vibration pickup 6 fitted to the journal part of bearing 5 supporting a rotating shaft system is converted by vibrometer 7 into an electric signal, which is inputted to control arithmetic device 10 via multiple data input device 8 and A/D converter 9. The rotation signal from rotation detector 15, on the other hand, is inputted to control arithmetic device 10 via tachometer 16, and on the basis of the amplitude of vibration at that time obtained by control arithmetic device 10 and previous data, vibration estimating device 11 finds the estimated value of the vibration amplitude after the performance of data processing. Then, discriminator 12 compares this estimated value with the reference discrimination value from memory device 13 and then the existence of a fault is discriminated to display the result on display device 14. Consequently, the generation of abnormal vibration can be detected in the early stage where the vibration is small.
JP3612780A 1980-03-24 1980-03-24 Vibration monitoring method of rotary machine Pending JPS56133617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3612780A JPS56133617A (en) 1980-03-24 1980-03-24 Vibration monitoring method of rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3612780A JPS56133617A (en) 1980-03-24 1980-03-24 Vibration monitoring method of rotary machine

Publications (1)

Publication Number Publication Date
JPS56133617A true JPS56133617A (en) 1981-10-19

Family

ID=12461109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3612780A Pending JPS56133617A (en) 1980-03-24 1980-03-24 Vibration monitoring method of rotary machine

Country Status (1)

Country Link
JP (1) JPS56133617A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100717A (en) * 1981-12-11 1983-06-15 Komatsu Ltd Abnormality detector
CN102506986A (en) * 2011-12-02 2012-06-20 江苏方天电力技术有限公司 Test system and method for mode and vibration of self-supporting tower and large-span power transmission tower
CN102506985A (en) * 2011-09-27 2012-06-20 西安博源电气有限公司 Online monitoring system and monitoring method for high-voltage reactor
CN105067248A (en) * 2015-08-17 2015-11-18 安徽容知日新信息技术有限公司 Method, apparatus and monitoring system for acquiring device rotating speed and vibration data

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157303A (en) * 1974-11-15 1976-05-19 Hitachi Ltd Taabinhatsudenkino shindohogosochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157303A (en) * 1974-11-15 1976-05-19 Hitachi Ltd Taabinhatsudenkino shindohogosochi

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100717A (en) * 1981-12-11 1983-06-15 Komatsu Ltd Abnormality detector
CN102506985A (en) * 2011-09-27 2012-06-20 西安博源电气有限公司 Online monitoring system and monitoring method for high-voltage reactor
CN102506986A (en) * 2011-12-02 2012-06-20 江苏方天电力技术有限公司 Test system and method for mode and vibration of self-supporting tower and large-span power transmission tower
CN105067248A (en) * 2015-08-17 2015-11-18 安徽容知日新信息技术有限公司 Method, apparatus and monitoring system for acquiring device rotating speed and vibration data

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