SU693041A1 - Turbomachine runner - Google Patents

Turbomachine runner

Info

Publication number
SU693041A1
SU693041A1 SU782614177A SU2614177A SU693041A1 SU 693041 A1 SU693041 A1 SU 693041A1 SU 782614177 A SU782614177 A SU 782614177A SU 2614177 A SU2614177 A SU 2614177A SU 693041 A1 SU693041 A1 SU 693041A1
Authority
SU
USSR - Soviet Union
Prior art keywords
turbomachine
runner
impeller
damping
bundle
Prior art date
Application number
SU782614177A
Other languages
Russian (ru)
Inventor
Анатолий Дмитриевич Кантемир
Юрий Поликарпович Томков
Яков Иванович Заика
Владимир Вячеславович Никонок
Виктор Николаевич Саввин
Original Assignee
Харьковский Ордена Ленина И Ордена Трудового Красного Знамени Турбинный Завод Им.С.М.Кирова
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 Харьковский Ордена Ленина И Ордена Трудового Красного Знамени Турбинный Завод Им.С.М.Кирова filed Critical Харьковский Ордена Ленина И Ордена Трудового Красного Знамени Турбинный Завод Им.С.М.Кирова
Priority to SU782614177A priority Critical patent/SU693041A1/en
Application granted granted Critical
Publication of SU693041A1 publication Critical patent/SU693041A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/22Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24Blade-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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

(54) РАБОЧЕЕ КОЛЕСО ТУРБОМАШИНЫ(54) WORKING WHEEL TURBOMASTERS

II

Изобретение относитс  к области турбостроени  и может быть использовано преимущественно в турбинах.The invention relates to the field of turbine construction and can be used mainly in turbines.

Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс  рабочее колесо турбомашины с контактирующими полками, в которых выполнены кольцевые пазы, в каждом из которых размещена проволочна  демпферна  св зь 1.The closest to the proposed technical essence and the achieved result is the impeller of the turbomachine with the contacting shelves, in which annular grooves are made, in each of which wire damper link 1 is placed.

Однако при такой конструкции рабочего колеса поверхность контакта между прополокой и бандажной полкой относительно невелика , что ограничивает демпфирующую способность такой св зи.However, with this design of the impeller, the contact surface between the weeding and the retaining shelf is relatively small, which limits the damping capacity of such a connection.

Целью изобретени   вл етс  улучшение демпфировани .The aim of the invention is to improve damping.

Это достигаетс  тем, что пазы имеют форму «ласточкина хвоста, а кажда  демпферна  св зь выполнена в виде образованного навивкой многослойного пучка проволоки.This is achieved by the fact that the grooves have the shape of a dovetail, and each damper connection is made in the form of a multi-layered wire bundle formed by winding.

На чертеже показана конструкци  предлагаемого рабочего колеса.The drawing shows the design of the proposed impeller.

Рабочее колесо содержит диск 1, рабочие лопатки 2 с контактирующими бандажными полками 3, имеющими кольцевые пазыThe impeller contains a disk 1, working blades 2 with contacting retaining shelves 3 with annular grooves

4 в форме «ласточкина хвоста. В каждом кольцевом пазу 4 размещена проволочна  демпферна  св зь, выполненна  в виде образованного навивкой многослойного пучка проволоки 5. При вращении рабочего колеса и колебани х лопаток 2 возникает сила трени  между бандажными полками 3 и многослойным пучком проволоки 5, котора  достигает значительной величины благодар  контакту между пучком проволоки 5 и доныщком кольцевого паза 4, который обеспечиваетс  за счет навивки прово.локи 5 на бандажные полки 3 колеса, а также благодар  контакту между наклонными боковыми поверхност ми паза 4 и пучком проволоки 5 (вследствие центробежных сил).4 in the form of "dovetail. In each annular groove 4, a wire damper link is placed in the form of a multi-layered wire bundle 5 formed by winding. As the impeller rotates and the blades 2 oscillate, a friction force occurs between the retaining shelves 3 and the multi-layered wire bundle 5, which reaches a significant amount due to the contact between wire bundle 5 and the outer ring of the groove 4, which is provided by winding wires. blocks 5 on the retaining shelves 3 wheels, as well as due to the contact between the inclined lateral surfaces pa for 4 and a bundle of wire 5 (due to centrifugal forces).

Кроме того, эффект демпфировани  усиливаетс  из-за взаимного трени  отдельных проволок 5 в пучке.In addition, the damping effect is enhanced due to the mutual friction of the individual wires 5 in the bundle.

Такое выполнение рабочего колеса позволит значительно улучщить демпфирование и увеличить спектр демпфируе.мых частот , особенно при больших величинах переменных возмущающих аэродинамических сил, а также при возникновении крутильных и осевых колебаний.Such an implementation of the impeller will significantly improve the damping and increase the spectrum of the damping. My frequencies, especially with large values of variable disturbing aerodynamic forces, as well as with the occurrence of torsional and axial vibrations.

SU782614177A 1978-05-11 1978-05-11 Turbomachine runner SU693041A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782614177A SU693041A1 (en) 1978-05-11 1978-05-11 Turbomachine runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782614177A SU693041A1 (en) 1978-05-11 1978-05-11 Turbomachine runner

Publications (1)

Publication Number Publication Date
SU693041A1 true SU693041A1 (en) 1979-10-25

Family

ID=20763985

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782614177A SU693041A1 (en) 1978-05-11 1978-05-11 Turbomachine runner

Country Status (1)

Country Link
SU (1) SU693041A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699569A (en) * 1985-07-05 1987-10-13 Bbc Brown, Boveri & Company, Limited Rotor blade ring of an axial flow turbomachine
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US5201850A (en) * 1991-02-15 1993-04-13 General Electric Company Rotor tip shroud damper including damper wires
DE4301656A1 (en) * 1993-01-22 1994-07-28 Bmw Rolls Royce Gmbh Blade and reinforcing strip assembly esp. for gas turbine
US5645402A (en) * 1996-04-10 1997-07-08 Solar Turbines Incorporated Turbine blade vibration dampening
EP1992834A1 (en) * 2007-05-16 2008-11-19 Gerhard Petzold Vibration Absorber
FR2998609A1 (en) * 2012-11-27 2014-05-30 Snecma Rectifying stage for use in e.g. compressor of aeronautical turboshaft engine e.g. turbojet, of aircraft, has housing for accommodating cords for damping vibrations of stage, where cords comprise single-layered or multi-layered strand
CN109026172A (en) * 2018-09-25 2018-12-18 中国船舶重工集团公司第七0三研究所 A kind of band-like damp-ing wire vibration-proof structure of blade with tips

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699569A (en) * 1985-07-05 1987-10-13 Bbc Brown, Boveri & Company, Limited Rotor blade ring of an axial flow turbomachine
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US5201850A (en) * 1991-02-15 1993-04-13 General Electric Company Rotor tip shroud damper including damper wires
DE4301656A1 (en) * 1993-01-22 1994-07-28 Bmw Rolls Royce Gmbh Blade and reinforcing strip assembly esp. for gas turbine
US5645402A (en) * 1996-04-10 1997-07-08 Solar Turbines Incorporated Turbine blade vibration dampening
EP1992834A1 (en) * 2007-05-16 2008-11-19 Gerhard Petzold Vibration Absorber
FR2998609A1 (en) * 2012-11-27 2014-05-30 Snecma Rectifying stage for use in e.g. compressor of aeronautical turboshaft engine e.g. turbojet, of aircraft, has housing for accommodating cords for damping vibrations of stage, where cords comprise single-layered or multi-layered strand
CN109026172A (en) * 2018-09-25 2018-12-18 中国船舶重工集团公司第七0三研究所 A kind of band-like damp-ing wire vibration-proof structure of blade with tips
CN109026172B (en) * 2018-09-25 2024-02-02 中国船舶重工集团公司第七0三研究所 From banded damping lacing wire strip vibration attenuation structure of taking guan leaf

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