GB623525A - Vibration damper for blades of turbines and compressors - Google Patents

Vibration damper for blades of turbines and compressors

Info

Publication number
GB623525A
GB623525A GB1292447A GB1292447A GB623525A GB 623525 A GB623525 A GB 623525A GB 1292447 A GB1292447 A GB 1292447A GB 1292447 A GB1292447 A GB 1292447A GB 623525 A GB623525 A GB 623525A
Authority
GB
United Kingdom
Prior art keywords
blades
socket
parts
compressors
sleeve
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
GB1292447A
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.)
SVENSKA TURBINFAB AB
Svenska Turbinfabriks Ljungstrom AB
Original Assignee
SVENSKA TURBINFAB AB
Svenska Turbinfabriks Ljungstrom AB
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 SVENSKA TURBINFAB AB, Svenska Turbinfabriks Ljungstrom AB filed Critical SVENSKA TURBINFAB AB
Priority to GB1292447A priority Critical patent/GB623525A/en
Publication of GB623525A publication Critical patent/GB623525A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

623,525. Turbine blades. FAIRWEATHER, H. G. C. (Svenska Turbinfabriks Aktiebolaget Ljungstrom). May 13, 1947, No. 12924. [Class 110(iii)] In order to damp vibrations of rotor blades of axial - flow turbines and compressors, adjacent blades or groups of blades are provided with peripherally-extending parts directed towards one another with clearance between their ends, and these ends are wholly or partly covered by. a sliding socket which may move relatively to one or both parts and thus connects them with a frictional damping effect. Two embodiments, which may be used together or separately, are shown. One comprises pieces of band 2 riveted or welded to the blades 1 and connected by a socket 4 formed by a bent plate secured to one of the plates 2; the socket may permit or prevent relative movement of the blades in the direction of the rotor axis. The second embodiment comprises pieces of wire 5 projecting peripherally and connected by a sleeve 6. In operation, the socket 4 and sleeve 6 are pressed by centrifugal force against the parts 2, 5 respectively to produce the friction required for damping vibrations. Connections as shown may be provided only between groups of rigidly connected blades instead of at every blade. Reference has been directed by the Comptroller to Specification 645,857.
GB1292447A 1947-05-13 1947-05-13 Vibration damper for blades of turbines and compressors Expired GB623525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1292447A GB623525A (en) 1947-05-13 1947-05-13 Vibration damper for blades of turbines and compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1292447A GB623525A (en) 1947-05-13 1947-05-13 Vibration damper for blades of turbines and compressors

Publications (1)

Publication Number Publication Date
GB623525A true GB623525A (en) 1949-05-18

Family

ID=10013626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1292447A Expired GB623525A (en) 1947-05-13 1947-05-13 Vibration damper for blades of turbines and compressors

Country Status (1)

Country Link
GB (1) GB623525A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771267A (en) * 1952-05-27 1956-11-20 United Aircraft Corp Lacing for compressor blades
US2956774A (en) * 1954-09-28 1960-10-18 Stalker Corp Vibration dampers for bladed wheels
US3056582A (en) * 1960-08-26 1962-10-02 Gen Electric Turbine stator construction
DE1551173B1 (en) * 1966-06-21 1971-07-08 Rolls Royce DEVICE FOR VIBRATION DAMPING ON FREE-STANDING BLADES OF FLOW MACHINERY
WO2007031383A1 (en) * 2005-09-15 2007-03-22 Alstom Technology Ltd Blade of a turbomachine having detachable anchoring for a separate cover plate
CN103628928A (en) * 2013-11-29 2014-03-12 东方电气集团东方汽轮机有限公司 Fir blade root final blade axial direction positioning structure
EP2803821A1 (en) 2013-05-13 2014-11-19 Siemens Aktiengesellschaft Blade device, blade system, and corresponding method of manufacturing a blade system
US20160305278A1 (en) * 2015-04-15 2016-10-20 Siemens Energy, Inc. Energy damping system for gas turbine engine stationary vane

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771267A (en) * 1952-05-27 1956-11-20 United Aircraft Corp Lacing for compressor blades
US2956774A (en) * 1954-09-28 1960-10-18 Stalker Corp Vibration dampers for bladed wheels
US3056582A (en) * 1960-08-26 1962-10-02 Gen Electric Turbine stator construction
DE1551173B1 (en) * 1966-06-21 1971-07-08 Rolls Royce DEVICE FOR VIBRATION DAMPING ON FREE-STANDING BLADES OF FLOW MACHINERY
WO2007031383A1 (en) * 2005-09-15 2007-03-22 Alstom Technology Ltd Blade of a turbomachine having detachable anchoring for a separate cover plate
EP2803821A1 (en) 2013-05-13 2014-11-19 Siemens Aktiengesellschaft Blade device, blade system, and corresponding method of manufacturing a blade system
CN103628928A (en) * 2013-11-29 2014-03-12 东方电气集团东方汽轮机有限公司 Fir blade root final blade axial direction positioning structure
US20160305278A1 (en) * 2015-04-15 2016-10-20 Siemens Energy, Inc. Energy damping system for gas turbine engine stationary vane
US9777594B2 (en) * 2015-04-15 2017-10-03 Siemens Energy, Inc. Energy damping system for gas turbine engine stationary vane

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