JPS5647601A - Vibration damping construction for turbine blade - Google Patents
Vibration damping construction for turbine bladeInfo
- Publication number
- JPS5647601A JPS5647601A JP12202979A JP12202979A JPS5647601A JP S5647601 A JPS5647601 A JP S5647601A JP 12202979 A JP12202979 A JP 12202979A JP 12202979 A JP12202979 A JP 12202979A JP S5647601 A JPS5647601 A JP S5647601A
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- blade
- piece
- turbine
- damping
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To absorb the energy of oscillation in a turbine blade and increase the effect of damping its oscillation for the turbine blade integrally constructed with a turbine disc, by longitudinally providing a hold and inserting an oscillation damping piece into the hole.
CONSTITUTION: A disc 1 and a blade 1 are formed as an integral unit, and a hole 3 is provided toward the center of the disc 1 from a tip end part of the blade 2. At both end parts of the hole 3 female screw threads tapped. At both end parts of a vibration damping piece 5 male screws are threaded, and an intermediate part of the piece is constructed by using a material easy to damp its oscillation. At a certain speed of rotation of a turbine, oscillating frequency of the blade 2 resonates and its stress of oscillation tends to raidly increase. At this time, the piece 5 is also oscillated in accordance with the oscillation of the blade 2, and the energy of oscillation of the blade 2 is absorbed by the oscillation of the piece 5 to obtain an effect of damping the oscillation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12202979A JPS5647601A (en) | 1979-09-25 | 1979-09-25 | Vibration damping construction for turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12202979A JPS5647601A (en) | 1979-09-25 | 1979-09-25 | Vibration damping construction for turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5647601A true JPS5647601A (en) | 1981-04-30 |
Family
ID=14825821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12202979A Pending JPS5647601A (en) | 1979-09-25 | 1979-09-25 | Vibration damping construction for turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5647601A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130294913A1 (en) * | 2012-05-04 | 2013-11-07 | Christian X. Campbell | Turbine blade with tuned damping structure |
| WO2014176228A1 (en) * | 2013-04-23 | 2014-10-30 | United Technologies Corporation | Internally damped airfoiled component and method |
| CN104314619A (en) * | 2014-08-15 | 2015-01-28 | 中国燃气涡轮研究院 | Adjustment structure and method for inherent frequencies of blades of overall blade disk of turbine |
-
1979
- 1979-09-25 JP JP12202979A patent/JPS5647601A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130294913A1 (en) * | 2012-05-04 | 2013-11-07 | Christian X. Campbell | Turbine blade with tuned damping structure |
| US9121288B2 (en) * | 2012-05-04 | 2015-09-01 | Siemens Energy, Inc. | Turbine blade with tuned damping structure |
| WO2014176228A1 (en) * | 2013-04-23 | 2014-10-30 | United Technologies Corporation | Internally damped airfoiled component and method |
| US10697303B2 (en) | 2013-04-23 | 2020-06-30 | United Technologies Corporation | Internally damped airfoiled component and method |
| US11668197B2 (en) | 2013-04-23 | 2023-06-06 | Raytheon Technologies Corporation | Internally damped airfoiled component |
| CN104314619A (en) * | 2014-08-15 | 2015-01-28 | 中国燃气涡轮研究院 | Adjustment structure and method for inherent frequencies of blades of overall blade disk of turbine |
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