JPS57175238A - Method and device for balance of rotor - Google Patents

Method and device for balance of rotor

Info

Publication number
JPS57175238A
JPS57175238A JP5979181A JP5979181A JPS57175238A JP S57175238 A JPS57175238 A JP S57175238A JP 5979181 A JP5979181 A JP 5979181A JP 5979181 A JP5979181 A JP 5979181A JP S57175238 A JPS57175238 A JP S57175238A
Authority
JP
Japan
Prior art keywords
vibration
balance
rotor
coefficient
revolutions
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
JP5979181A
Other languages
Japanese (ja)
Other versions
JPS6333648B2 (en
Inventor
Hironori Shiohata
Fumio Fujisawa
Yukio Mitamura
Yoshihiro Tsukahara
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 JP5979181A priority Critical patent/JPS57175238A/en
Publication of JPS57175238A publication Critical patent/JPS57175238A/en
Publication of JPS6333648B2 publication Critical patent/JPS6333648B2/ja
Granted 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
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining imbalance
    • G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
    • G01M1/22—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To ensure the balance of a rotor with high accuracy and high efficiency, by deciding the out-of-allowance of the rotor residual vibration according to the number of revolutions and the bearing vibration to read out the modal effect coefficient and then calculating and setting the balance correcting weighting coefficient. CONSTITUTION:The number of revolutions is detected by a revolution detector 5 for turbine rotors 1 and 2 plus a generator rotor 3 respectively. The vibrations of bearings 41-46 are detected by a sensor 61 of each bearing and a vibration detector 6. A vibration analyzer 7 to which the detection output of the detector 5 is applied extracts the unbalanced vibration component synchronous with the number of revolutions. Then the question whether or not the residual vibration is within the allowable value is decided by a deciding device 8. In case the unbalanced vibration component is excessive and out of the allowable value, an operator 10 forming a computer reads out the modal effect coefficient showing the relation between the modal mass and the vibration out of a storage device 9 and then calculates and decides the balance correcting weight coefficient through the minimum square operation, etc. to delover the coefficient to an input/output device 11 such as a teletypewriter, a CRT, etc. In the same way, the balance is repetitively corrected to ensure the balance of a rotor with high accuracy and high efficiency.
JP5979181A 1981-04-22 1981-04-22 Method and device for balance of rotor Granted JPS57175238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5979181A JPS57175238A (en) 1981-04-22 1981-04-22 Method and device for balance of rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5979181A JPS57175238A (en) 1981-04-22 1981-04-22 Method and device for balance of rotor

Publications (2)

Publication Number Publication Date
JPS57175238A true JPS57175238A (en) 1982-10-28
JPS6333648B2 JPS6333648B2 (en) 1988-07-06

Family

ID=13123452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5979181A Granted JPS57175238A (en) 1981-04-22 1981-04-22 Method and device for balance of rotor

Country Status (1)

Country Link
JP (1) JPS57175238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253438A (en) * 1985-05-02 1986-11-11 Toray Ind Inc Field balance corrector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253438A (en) * 1985-05-02 1986-11-11 Toray Ind Inc Field balance corrector
JPH0523378B2 (en) * 1985-05-02 1993-04-02 Toray Industries

Also Published As

Publication number Publication date
JPS6333648B2 (en) 1988-07-06

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