SU693041A1 - Turbomachine runner - Google Patents
Turbomachine runnerInfo
- 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
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
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.
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)
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 |
-
1978
- 1978-05-11 SU SU782614177A patent/SU693041A1/en active
Cited By (9)
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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