SU141041A1 - Flexible bandage, vibration damping turbine blades - Google Patents

Flexible bandage, vibration damping turbine blades

Info

Publication number
SU141041A1
SU141041A1 SU698534A SU698534A SU141041A1 SU 141041 A1 SU141041 A1 SU 141041A1 SU 698534 A SU698534 A SU 698534A SU 698534 A SU698534 A SU 698534A SU 141041 A1 SU141041 A1 SU 141041A1
Authority
SU
USSR - Soviet Union
Prior art keywords
vibration damping
turbine blades
flexible
blades
bandage
Prior art date
Application number
SU698534A
Other languages
Russian (ru)
Inventor
А.Я. Ершов
Г.А. Щелкунов
Original Assignee
А.Я. Ершов
Г.А. Щелкунов
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 А.Я. Ершов, Г.А. Щелкунов filed Critical А.Я. Ершов
Priority to SU698534A priority Critical patent/SU141041A1/en
Application granted granted Critical
Publication of SU141041A1 publication Critical patent/SU141041A1/en

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Description

Известные гибкие бандажи дл  демпфировани  вl бpaциii турбнпных лопаток, состо щие из металлической ленты, укрепленной на концах лонаток турбины шипами-заклепками и охватывающие все лопатки по окружности, не позвол ют устран ть вибрацию лопаток при перво.м тоне колебаний в тангенциальном направлении из-за жесткого креплени  бандажа к лонаткам.Known flexible bandages for damping of the turbine blade blades, consisting of a metal tape fixed to the ends of the turbine arms with spiked rivets and covering all the blades around the circumference, do not allow vibration of the blades at the primary tone of oscillations in the tangential direction due to rigid attachment of the brace to the curb.

Бандаж, выполненный согласно изобретению, лишен этого недостатка .The bandage, made according to the invention, is devoid of this disadvantage.

Сущность изобретени  состоит в том, что бандаж выполнен из гибкой ленты и укреплен с радиальным и тангенциальными зазорами ме/кду гибкой лентой и типами-заклепками.The essence of the invention is that the bandage is made of flexible tape and reinforced with radial and tangential gaps me / kdu flexible tape and types of rivets.

На фиг. 1 схематически изображен общий вид креплени  к лопатке в двух проекци х; на фиг. 2 - крепление многослойного бандажа к лопатке; на фиг. 3 - крепление бандажа, снаб.кенного отбуртовкой .FIG. 1 shows schematically a general view of attachment to a blade in two projections; in fig. 2 - fastening of the multilayer band to the blade; in fig. 3 - fastening of the bandage, provided with a stand-off.

Гибкий бандаж / представл ет ;еталлическую ленту, выполненную из одной или нескольких полос, укрепленную на концах лопаток 2 турбнны шипами-заклепками 3 н охватывающую все лопатки по окружности . Дл  устраненн  вибрации лопаток нри первом тоне колебаний в тангенциальном направлении бандаж 7 укреплен на лопатке 2 с радиальными и тангенциальными зазорами между гибкой лентой бандажа / и типами-заклепками 3.Flexible bandage / represents; etalic tape, made of one or several strips, fastened on the ends of the blades 2 of the turbine with 3-n spikes-rivets covering all the blades around the circumference. To eliminate the vibration of the blades in the first tone of oscillations in the tangential direction, the band 7 is fixed on the blade 2 with radial and tangential gaps between the flexible band of the band / and the rivet types 3.

Центральный научно-исследовательский котлотурбикный ИНСТИТУТ им. И. И. Ползунова отмечает промышленную полезность предложенного устройства.Central Research Klotloturbik INSTITUTE them. I. I. Polzunova notes the industrial utility of the proposed device.

Предмет изобретен ii  Item invented ii

Гибкий бандаж, демфирующий вибрацию турбинных лопаток, состо щий из металлической-ленты, укрепленной-на-концах лонаток тур№ 141041A flexible bandage that dampens the vibration of turbine blades, consisting of metal-tape, reinforced-at-the-ends of the tarpaulin tour No. 141041

бины шипами-заклепками и охватывающий все лопатки по окружности , отличающийс  тем, что, с целью создани  возможности перемещени  массы ленты и ее трени  при ьибрации лопаток в танге)циальном направлении, бандаж выполнен из гибкой ленты и укреплен с радиальными и тангенциальными зазорами между гибкой лентой и шипами-заклепками.Spike-rivet bins and covering all the blades around the circumference, characterized in that, in order to create the possibility of mass movement of the tape and its friction when bending the blades in the tanga direction, the bandage is made of flexible tape and reinforced with radial and tangential gaps between the flexible tape and spiked rivets.

Фиг. 2FIG. 2

22

у/////Л / //////////.y ///// L / // // // // //.

Фиг.ЗFig.Z

SU698534A 1961-02-20 1961-02-20 Flexible bandage, vibration damping turbine blades SU141041A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU698534A SU141041A1 (en) 1961-02-20 1961-02-20 Flexible bandage, vibration damping turbine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU698534A SU141041A1 (en) 1961-02-20 1961-02-20 Flexible bandage, vibration damping turbine blades

Publications (1)

Publication Number Publication Date
SU141041A1 true SU141041A1 (en) 1961-11-30

Family

ID=48297013

Family Applications (1)

Application Number Title Priority Date Filing Date
SU698534A SU141041A1 (en) 1961-02-20 1961-02-20 Flexible bandage, vibration damping turbine blades

Country Status (1)

Country Link
SU (1) SU141041A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501573A (en) * 1993-01-29 1996-03-26 Steam Specialties, Inc. Segmented seal assembly and method for retrofitting the same to turbines and the like
RU2584078C2 (en) * 2010-06-18 2016-05-20 Снекма Angular sector of a stator for a turbine engine compressor, a turbine engine stator and a turbine engine including such a sector
RU2587026C2 (en) * 2010-06-18 2016-06-10 Снекма Angular sector of stator for turbine engine compressor, turbine engine stator, and turbine engine including such sector
RU2631585C2 (en) * 2011-12-19 2017-09-25 Снекма Compressor stator for turbomachine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501573A (en) * 1993-01-29 1996-03-26 Steam Specialties, Inc. Segmented seal assembly and method for retrofitting the same to turbines and the like
RU2584078C2 (en) * 2010-06-18 2016-05-20 Снекма Angular sector of a stator for a turbine engine compressor, a turbine engine stator and a turbine engine including such a sector
RU2587026C2 (en) * 2010-06-18 2016-06-10 Снекма Angular sector of stator for turbine engine compressor, turbine engine stator, and turbine engine including such sector
RU2631585C2 (en) * 2011-12-19 2017-09-25 Снекма Compressor stator for turbomachine

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