SU453486A1 - Device for damping the oscillations of work bladdes of axial turbo dumpers - Google Patents

Device for damping the oscillations of work bladdes of axial turbo dumpers

Info

Publication number
SU453486A1
SU453486A1 SU1905170A SU1905170A SU453486A1 SU 453486 A1 SU453486 A1 SU 453486A1 SU 1905170 A SU1905170 A SU 1905170A SU 1905170 A SU1905170 A SU 1905170A SU 453486 A1 SU453486 A1 SU 453486A1
Authority
SU
USSR - Soviet Union
Prior art keywords
oscillations
damping
bladdes
dumpers
work
Prior art date
Application number
SU1905170A
Other languages
Russian (ru)
Inventor
П. Бервинов Б.
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 filed Critical
Priority to SU1905170A priority Critical patent/SU453486A1/en
Application granted granted Critical
Publication of SU453486A1 publication Critical patent/SU453486A1/en

Links

Description

The invention relates to the field of turbine construction.

Known devices for damping oscillations of blades of an axial turbo machine, such as a gas turbine, contain contact surfaces that are made on the storage rails.

The proposed device differs from the known ones in that the contacting surfaces are made in the form of radial half-ring grooves, and in the holes formed in the assembly with recesses there are pins with axial movement restraints.

Such an embodiment of the device makes it possible to reduce the wear and tear of the contacting surfaces.

FIG. 1 shows turbine blades, top view; in fig. 2 - blade shelves, longitudinal section.

The device consists of shelves / and D1 of two side 2, having contacting surfaces A, made in the form of radial semi-cylindrical cylindrical recesses, forming holes, In which pins 3 are installed with limiting 4 axial movements.

In the course of the rotor operation, forces arise that act in two nanowires: in the circumferential, the force from the spinning of the lap piece, and in radially, the centrifugal force. As a result of the action of these forces, friction forces emerge, which dampen the vibrations of women. The shape of the holes formed by the contacting surfaces contributes to the npiijia working of the contacting parts, which reduces wear and increases the reliability of operation of the device.

The subject will invent)

A device for damping oscillations of rotor blades of an axial turbo-thrust, for example, a gas turbine, containing copactivating surfaces made on the retaining parts, characterized in that. that, in order to increase reliability, the contacting surfaces are made in the form of radial, o-ring cylinders of 1-1 notches, and in the assemblies formed in the assembly. 1 holes are installed pins with limbs of axial displacement.

SU1905170A 1973-04-11 1973-04-11 Device for damping the oscillations of work bladdes of axial turbo dumpers SU453486A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1905170A SU453486A1 (en) 1973-04-11 1973-04-11 Device for damping the oscillations of work bladdes of axial turbo dumpers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1905170A SU453486A1 (en) 1973-04-11 1973-04-11 Device for damping the oscillations of work bladdes of axial turbo dumpers

Publications (1)

Publication Number Publication Date
SU453486A1 true SU453486A1 (en) 1974-12-15

Family

ID=20548806

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1905170A SU453486A1 (en) 1973-04-11 1973-04-11 Device for damping the oscillations of work bladdes of axial turbo dumpers

Country Status (1)

Country Link
SU (1) SU453486A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2456460C2 (en) * 2006-12-14 2012-07-20 Дженерал Электрик Компани System to prevent wear of tip airfoil shroud platform of turbine blade
RU2529279C1 (en) * 2013-04-11 2014-09-27 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Turbomachine compressor impeller
RU2537997C2 (en) * 2009-07-31 2015-01-10 Снекма Turbomachine stator blade circular sector and aircraft turbomachine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2456460C2 (en) * 2006-12-14 2012-07-20 Дженерал Электрик Компани System to prevent wear of tip airfoil shroud platform of turbine blade
RU2537997C2 (en) * 2009-07-31 2015-01-10 Снекма Turbomachine stator blade circular sector and aircraft turbomachine
RU2529279C1 (en) * 2013-04-11 2014-09-27 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Turbomachine compressor impeller

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