FIELD: machine building.
SUBSTANCE: blade made of composite material comprises an airfoil produced from textile filaments impregnated by thermosetting resin and a protection element placed near the airfoil leading edge. The protection element comprises a part in the form of rigid plate firmly fixed to the airfoil. A layer of viscoelastic material is placed between the rigid plate part and the airfoil and together with the protection element provides for damping of vibrations at the blade. Other inventions of the group refer to a gas-turbine engine compressor and a turbojet with a fan comprising the above said composite blade.
EFFECT: inventions provide for a tool for damping of composite blade vibrations.
15 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LEVER FOR BRINGING INTO ROTATION ABOUT ROTATION AXIS OF TURBOMACHINE STATOR BLADE WITH ADJUSTABLE SETTING ANGLE | 2008 |
|
RU2471077C2 |
| FAN BLADE OF GAS TURBINE ENGINE | 2017 |
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|
RU2792505C2 |
| FAN BLADE OF GAS TURBINE ENGINE | 2017 |
|
RU2661433C1 |
| GAS TURBINE ENGINE STATOR AND GAS TURBINE ENGINE WITH SUCH STATOR | 2008 |
|
RU2486351C2 |
| IMPELLER FOR TURBOJET AND TURBOJET INCLUDING SAID IMPELLER | 2008 |
|
RU2487248C2 |
| GAS TURBINE ENGINE BLADE WITH MAXIMUM THICKNESS RULE WITH HIGH FLUTTER STRENGTH | 2019 |
|
RU2794951C2 |
| GAS-TURBINE ENGINE CONTAINING FAN AND COMPRESSOR | 2016 |
|
RU2625078C1 |
| VIBRATION DAMPING DEVICE FOR ATTACHMENTS OF BLADES OF GAS BLADED MACHINES, GAS BLADED MACHINE, GAS-TURBINE ENGINE AND HIGH-SPEED PROPELLER ENGINE | 2009 |
|
RU2503825C2 |
