GB1353732A - Measurement of blade vibration in rotary bladed machines - Google Patents

Measurement of blade vibration in rotary bladed machines

Info

Publication number
GB1353732A
GB1353732A GB1353732DA GB1353732A GB 1353732 A GB1353732 A GB 1353732A GB 1353732D A GB1353732D A GB 1353732DA GB 1353732 A GB1353732 A GB 1353732A
Authority
GB
United Kingdom
Prior art keywords
train
output
blade
measurement
tip
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.)
Expired
Application number
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB1353732A publication Critical patent/GB1353732A/en
Expired 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
    • G01H1/006—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines of the rotor of turbo machines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

1353732 Rotor blade monitoring DEFENCE SECRETARY OF STATE FOR 3 Sept 1971 [5 June 1970] 27351/70 Heading G1A A machine including a bladed rotor is provided with a probe mounted on the machine close to the path of the blade tips, constructed to produce an electrical pulse at each tip passage, and with means to extract information regarding blade movement e.g. vibration amplitude from the train of pulses thus produced. The probe may be electro-optical using fibre optic light conductors or may be capacitive, magnetic, eddy current or Piezo-electric. Two probes may be fitted and the train may be displayed on a cathode-ray tube the scan of which is synchronized by the output from a counter. Information derived from pulse train analysis is exemplified and the polishing of one tip for a reference is described. The G. R. T. output may be photographed.
GB1353732D 1970-06-05 1970-06-05 Measurement of blade vibration in rotary bladed machines Expired GB1353732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2735170 1970-06-05

Publications (1)

Publication Number Publication Date
GB1353732A true GB1353732A (en) 1974-05-22

Family

ID=10258196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1353732D Expired GB1353732A (en) 1970-06-05 1970-06-05 Measurement of blade vibration in rotary bladed machines

Country Status (1)

Country Link
GB (1) GB1353732A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080823A (en) * 1976-11-05 1978-03-28 United Technologies Corporation Vibration measurement
US4593566A (en) * 1983-07-08 1986-06-10 Rolls Royce Limited Vibration monitoring in rotary machines
US5201227A (en) * 1992-03-05 1993-04-13 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Device for measuring vibrations on rotating blade
GB2401683A (en) * 2003-05-16 2004-11-17 Rolls Royce Plc Monitoring engine order forcing frequency

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080823A (en) * 1976-11-05 1978-03-28 United Technologies Corporation Vibration measurement
US4593566A (en) * 1983-07-08 1986-06-10 Rolls Royce Limited Vibration monitoring in rotary machines
US5201227A (en) * 1992-03-05 1993-04-13 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Device for measuring vibrations on rotating blade
GB2401683A (en) * 2003-05-16 2004-11-17 Rolls Royce Plc Monitoring engine order forcing frequency
US6959688B2 (en) 2003-05-16 2005-11-01 Rolls-Royce Plc Method for monitoring engine order forcing frequency
GB2401683B (en) * 2003-05-16 2006-02-08 Rolls Royce Plc Method for monitoring engine order forcing frequency

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee