RU2012109596A - METHOD FOR REDUCING DYNAMIC STRESSES IN WORKING BLADES OF THE LAST TURBINE STAGE - Google Patents
METHOD FOR REDUCING DYNAMIC STRESSES IN WORKING BLADES OF THE LAST TURBINE STAGE Download PDFInfo
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- RU2012109596A RU2012109596A RU2012109596/06A RU2012109596A RU2012109596A RU 2012109596 A RU2012109596 A RU 2012109596A RU 2012109596/06 A RU2012109596/06 A RU 2012109596/06A RU 2012109596 A RU2012109596 A RU 2012109596A RU 2012109596 A RU2012109596 A RU 2012109596A
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- turbine
- last stage
- dynamic stresses
- reducing dynamic
- blade
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Abstract
Способ снижения динамических напряжений в рабочих лопатках последней ступени силовой турбины, содержащей рабочие колеса, размещенные в статоре, отличающийся тем, что при угле раскрытия проточной части в меридиональном сечении в пределах 13…23° и соответственно отношении среднего диаметра рабочего колеса последней ступени силовой турбины к высоте рабочей лопатки на выходе из турбины от 3,5 до 4,0, минимальную толщину полотна диска последней ступени турбины выбирают равной или большей, чем ширина пера рабочей лопатки последней ступени силовой турбины в корневом сечении.A method of reducing dynamic stresses in the rotor blades of the last stage of a power turbine containing impellers located in the stator, characterized in that when the opening angle of the flow part in the meridional section is within 13 ... 23 ° and, accordingly, the ratio of the average diameter of the impeller of the last stage of the power turbine is the height of the working blade at the outlet of the turbine is from 3.5 to 4.0, the minimum thickness of the blade web of the disk of the last stage of the turbine is chosen equal to or greater than the width of the pen of the working blade of the last stage of the force th root of the turbine section.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2012109596/06A RU2499889C1 (en) | 2012-03-13 | 2012-03-13 | Reduction method of dynamic stresses in rotating blades of turbine last stage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2012109596/06A RU2499889C1 (en) | 2012-03-13 | 2012-03-13 | Reduction method of dynamic stresses in rotating blades of turbine last stage |
Publications (2)
Publication Number | Publication Date |
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RU2012109596A true RU2012109596A (en) | 2013-09-20 |
RU2499889C1 RU2499889C1 (en) | 2013-11-27 |
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RU2012109596/06A RU2499889C1 (en) | 2012-03-13 | 2012-03-13 | Reduction method of dynamic stresses in rotating blades of turbine last stage |
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RU (1) | RU2499889C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2703844C1 (en) * | 2018-10-04 | 2019-10-22 | Акционерное общество "РОТЕК" (АО "РОТЕК") | Method for evaluation of residual life of the first stage of gas turbine plant |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6375428B1 (en) * | 2000-08-10 | 2002-04-23 | The Boeing Company | Turbine blisk rim friction finger damper |
FR2824597B1 (en) * | 2001-05-11 | 2004-04-02 | Snecma Moteurs | REDUCTION OF VIBRATION IN A STRUCTURE COMPRISING A ROTOR AND FIXED DISTURBANCE SOURCES |
FR2866057B1 (en) * | 2004-02-06 | 2006-04-28 | Snecma Moteurs | DEVICE FOR BALANCING A ROTOR DISC, DISC EQUIPPED WITH SUCH A DEVICE, AND ROTOR HAVING SUCH A DISK |
DE102009033618A1 (en) * | 2009-07-17 | 2011-01-20 | Mtu Aero Engines Gmbh | Method for frequency detuning of rotor body of rotor of gas turbine, involves providing rotor raw body that is made of base material |
RU99066U1 (en) * | 2010-07-15 | 2010-11-10 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации Минпромторг России | AXIAL MULTI-STAGE TURBO MACHINE ROTOR |
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- 2012-03-13 RU RU2012109596/06A patent/RU2499889C1/en not_active IP Right Cessation
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Publication number | Publication date |
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RU2499889C1 (en) | 2013-11-27 |
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Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20140314 |