JPS57143103A - Vibration damper for rotor vane - Google Patents

Vibration damper for rotor vane

Info

Publication number
JPS57143103A
JPS57143103A JP2772981A JP2772981A JPS57143103A JP S57143103 A JPS57143103 A JP S57143103A JP 2772981 A JP2772981 A JP 2772981A JP 2772981 A JP2772981 A JP 2772981A JP S57143103 A JPS57143103 A JP S57143103A
Authority
JP
Japan
Prior art keywords
rotor vane
bosses
vibration
rotor
produced
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
JP2772981A
Other languages
Japanese (ja)
Inventor
Morihiro Hayashida
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP2772981A priority Critical patent/JPS57143103A/en
Publication of JPS57143103A publication Critical patent/JPS57143103A/en
Pending 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
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To increase damping force and decrease vibration stresses in such a way that plates equipped with tooth-brush shaped bosses are inserted opposite to each other at the hollow part in a rotor vane, and friction force can be produced in contact with the bosses due to vibration of the rotor vane. CONSTITUTION:For example, plates 2a, 2b equipped with innumerable bosses 3 made of steel wires are inserted opposite to each other into the hollow part 4 provided in a rotor vanel. When the rotor vane 1 vibrates, friction force is produced by contacting the bosses one another. In consequence, damping is produced due to friction force on the rotor vane 1, and since the damping is increased by the lot, vibration stresses are decreased, anti-vibration intensity of the rotor vane 1 can be increased.
JP2772981A 1981-02-27 1981-02-27 Vibration damper for rotor vane Pending JPS57143103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2772981A JPS57143103A (en) 1981-02-27 1981-02-27 Vibration damper for rotor vane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2772981A JPS57143103A (en) 1981-02-27 1981-02-27 Vibration damper for rotor vane

Publications (1)

Publication Number Publication Date
JPS57143103A true JPS57143103A (en) 1982-09-04

Family

ID=12229103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2772981A Pending JPS57143103A (en) 1981-02-27 1981-02-27 Vibration damper for rotor vane

Country Status (1)

Country Link
JP (1) JPS57143103A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402716A (en) * 2003-06-10 2004-12-15 Rolls Royce Plc A damped aerofoil structure
JP2006052732A (en) * 2004-08-09 2006-02-23 General Electric Co <Ge> Mixed tuned hybrid blade and associated method
KR101508982B1 (en) * 2014-02-17 2015-04-07 한국해양과학기술원 Low Noise Large Cavitation Tunnel
US9028219B2 (en) 2007-05-01 2015-05-12 Rolls-Royce Plc Turbomachine blade

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402716A (en) * 2003-06-10 2004-12-15 Rolls Royce Plc A damped aerofoil structure
GB2402716B (en) * 2003-06-10 2006-08-16 Rolls Royce Plc A damped aerofoil structure
US7128536B2 (en) 2003-06-10 2006-10-31 Rolls-Royce Plc Damped aerofoil structure
JP2006052732A (en) * 2004-08-09 2006-02-23 General Electric Co <Ge> Mixed tuned hybrid blade and associated method
US9028219B2 (en) 2007-05-01 2015-05-12 Rolls-Royce Plc Turbomachine blade
KR101508982B1 (en) * 2014-02-17 2015-04-07 한국해양과학기술원 Low Noise Large Cavitation Tunnel

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