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RU2014150370A - METHOD FOR VIBRATION REDUCTION IN TURBO MACHINES - Google Patents

METHOD FOR VIBRATION REDUCTION IN TURBO MACHINES Download PDF

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Publication number
RU2014150370A
RU2014150370A RU2014150370A RU2014150370A RU2014150370A RU 2014150370 A RU2014150370 A RU 2014150370A RU 2014150370 A RU2014150370 A RU 2014150370A RU 2014150370 A RU2014150370 A RU 2014150370A RU 2014150370 A RU2014150370 A RU 2014150370A
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RU
Russia
Prior art keywords
supply
nozzles
fuel
temperature field
temperature
Prior art date
Application number
RU2014150370A
Other languages
Russian (ru)
Other versions
RU2598985C2 (en
Inventor
Александр Леонидович Михайлов
Вячеслав Иванович Черных
Original Assignee
Открытое акционерное общество "Научно-производственное объединение "Сатурн"
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 Открытое акционерное общество "Научно-производственное объединение "Сатурн" filed Critical Открытое акционерное общество "Научно-производственное объединение "Сатурн"
Priority to RU2014150370/06A priority Critical patent/RU2598985C2/en
Publication of RU2014150370A publication Critical patent/RU2014150370A/en
Application granted granted Critical
Publication of RU2598985C2 publication Critical patent/RU2598985C2/en

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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
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials

Landscapes

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

Abstract

Способ снижения вибрации в рабочих лопатках турбомашины, при котором измеряют температуру газа перед или за турбиной, выявляют анализом температурного поля одноименную с резонансной гармонику и уменьшают ее амплитуду, для чего корректируют температурное поле изменением подачи топлива в форсунки камеры сгорания, отличающийся тем, что изменение подачи топлива осуществляют путем прекращения его подачи, по меньшей мере, в одну из форсунок на резонансном режиме, после прохождения которого подачу топлива восстанавливают.A method of reducing vibration in the working blades of a turbomachine, in which the temperature of the gas is measured in front of or behind the turbine, is revealed by analyzing the temperature field of the same name as the resonant harmonic and its amplitude is reduced, for which the temperature field is adjusted by changing the fuel supply to the nozzles of the combustion chamber, characterized in that the change in supply fuel is carried out by stopping its supply to at least one of the nozzles in the resonant mode, after which the fuel supply is restored.

Claims (1)

Способ снижения вибрации в рабочих лопатках турбомашины, при котором измеряют температуру газа перед или за турбиной, выявляют анализом температурного поля одноименную с резонансной гармонику и уменьшают ее амплитуду, для чего корректируют температурное поле изменением подачи топлива в форсунки камеры сгорания, отличающийся тем, что изменение подачи топлива осуществляют путем прекращения его подачи, по меньшей мере, в одну из форсунок на резонансном режиме, после прохождения которого подачу топлива восстанавливают. A method of reducing vibration in the working blades of a turbomachine, in which the temperature of the gas is measured in front of or behind the turbine, is revealed by analyzing the temperature field of the same name as the resonant harmonic and its amplitude is reduced, for which the temperature field is adjusted by changing the fuel supply to the nozzles of the combustion chamber, characterized in that the change in supply fuel is carried out by stopping its supply to at least one of the nozzles in the resonant mode, after which the fuel supply is restored.
RU2014150370/06A 2014-12-11 2014-12-11 Method for reducing vibration in rotating blades of turbo-machine RU2598985C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2014150370/06A RU2598985C2 (en) 2014-12-11 2014-12-11 Method for reducing vibration in rotating blades of turbo-machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2014150370/06A RU2598985C2 (en) 2014-12-11 2014-12-11 Method for reducing vibration in rotating blades of turbo-machine

Publications (2)

Publication Number Publication Date
RU2014150370A true RU2014150370A (en) 2016-07-10
RU2598985C2 RU2598985C2 (en) 2016-10-10

Family

ID=56372439

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2014150370/06A RU2598985C2 (en) 2014-12-11 2014-12-11 Method for reducing vibration in rotating blades of turbo-machine

Country Status (1)

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RU (1) RU2598985C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2746365C1 (en) * 2020-06-05 2021-04-12 Публичное акционерное общество "ОДК - Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") Method for reducing vibratory stresses in working blades of turbomachine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU957605A1 (en) * 1981-02-27 2005-06-27 К.Р. Хачатуров METHOD OF TUNING OPERATING BLADES OF A TURBINE OF A GAS TURBINE ENGINE FROM RESONANT OSCILLATIONS
CA1259248A (en) * 1985-05-23 1989-09-12 Voith Hydro, Inc. Hydraulic turbine aeration apparatus
RU109287U1 (en) * 2011-06-29 2011-10-10 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации, Минпромторг России DIAGNOSTIC DEVICE FOR RESONANT IMPAIRS OF THE BLADES OF THE DRIVING WHEEL IN THE COMPOSITION OF AXIAL TURBO MACHINE

Also Published As

Publication number Publication date
RU2598985C2 (en) 2016-10-10

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