GB1507811A - Lashing and damping arrangement for rotating turbine blades - Google Patents

Lashing and damping arrangement for rotating turbine blades

Info

Publication number
GB1507811A
GB1507811A GB110477A GB110477A GB1507811A GB 1507811 A GB1507811 A GB 1507811A GB 110477 A GB110477 A GB 110477A GB 110477 A GB110477 A GB 110477A GB 1507811 A GB1507811 A GB 1507811A
Authority
GB
United Kingdom
Prior art keywords
blades
lashing
turbine blades
damping
damping arrangement
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
GB110477A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1507811A publication Critical patent/GB1507811A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Support Of The Bearing (AREA)

Abstract

Mounted between adjacent blades of the axial flow blade ring of a turbine is a setting and damping wire (66) which passes through openings (44, 46) in the blades and is provided at its ends (68, 70) with bearing hemispheres (72, 74). The latter are supported in hollow spherical bearing surfaces (62, 64) of the blades. Between the bearing hemispheres (72, 74) and the hollow spherical bearing surfaces (62, 64) there is a friction-generating boundary layer, by means of which kinetic energy is used up between adjacent blades for the damping of vibrations. By virtue of the spherical bearing surfaces, friction damping occurs in all directions. <IMAGE>
GB110477A 1976-01-21 1977-01-12 Lashing and damping arrangement for rotating turbine blades Expired GB1507811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65083776A 1976-01-21 1976-01-21

Publications (1)

Publication Number Publication Date
GB1507811A true GB1507811A (en) 1978-04-19

Family

ID=24610519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB110477A Expired GB1507811A (en) 1976-01-21 1977-01-12 Lashing and damping arrangement for rotating turbine blades

Country Status (10)

Country Link
JP (1) JPS5290707A (en)
BE (1) BE850637A (en)
CA (1) CA1048413A (en)
CH (1) CH616483A5 (en)
DE (1) DE2701683A1 (en)
ES (1) ES454625A1 (en)
FR (1) FR2339059A1 (en)
GB (1) GB1507811A (en)
IT (1) IT1078378B (en)
SE (1) SE7700596L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730584A (en) * 1996-05-09 1998-03-24 Rolls-Royce Plc Vibration damping
US20240035384A1 (en) * 2022-07-27 2024-02-01 General Electric Company Nested damper pin and vibration dampening system for turbine nozzle or blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5836410B2 (en) * 2014-02-27 2015-12-24 三菱重工業株式会社 Rotor blade and rotating machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730584A (en) * 1996-05-09 1998-03-24 Rolls-Royce Plc Vibration damping
US20240035384A1 (en) * 2022-07-27 2024-02-01 General Electric Company Nested damper pin and vibration dampening system for turbine nozzle or blade
US11976565B2 (en) * 2022-07-27 2024-05-07 Ge Infrastructure Technology Llc Nested damper pin and vibration dampening system for turbine nozzle or blade

Also Published As

Publication number Publication date
BE850637A (en) 1977-07-22
FR2339059A1 (en) 1977-08-19
SE7700596L (en) 1977-07-22
CH616483A5 (en) 1980-03-31
JPS5434083B2 (en) 1979-10-24
JPS5290707A (en) 1977-07-30
IT1078378B (en) 1985-05-08
CA1048413A (en) 1979-02-13
ES454625A1 (en) 1978-03-16
DE2701683A1 (en) 1977-07-28
FR2339059B1 (en) 1980-09-05

Similar Documents

Publication Publication Date Title
ATE269491T1 (en) MAGNUS EFFECT WIND TURBINE
SE7701779L (en) TURBINE HOUSE FOR PULP TURBINES
US2953282A (en) Motor driven vibrator
DE3266293D1 (en) High speed rotor especially for flywheel
SE7712012L (en) STORAGE WITH A SPHERIC AIR STORAGE
GB1008903A (en) Improvements in or relating to rotors of axial flow turbines
GB1507811A (en) Lashing and damping arrangement for rotating turbine blades
US3754838A (en) Vibration suppressed blade
JPS5728810A (en) Fluid turbine
SE8404989D0 (en) synchronous
JPH02119521U (en)
JPS55148978A (en) Wind power generator
JPS5430517A (en) Axial flow blower with variable pitch blade
SE8500989D0 (en) AIR CONTROL MEANS
SE8400157L (en) WIND rotor element
SU1645570A1 (en) Adjustable guiding apparatus of turbo-machine
JPS5523373A (en) Propeller type wind motor
SU1134763A1 (en) Axial flow hydraulic turbine with adjustable pitch blades
JPS55134703A (en) Blade structure
POGODIN et al. Use of braking stages for control of turbine speed[Abstract Only]
GB2007175A (en) Propellers
SU114098A1 (en) Single drum friction winch
JPS5438453A (en) High speed roller bearing
JPS5551985A (en) Rotary fluid machine
JPS5365506A (en) Interconnected blades structure

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee