BLADE OF COMPOSITE MATERIAL, COMPRESSOR OF GAS TURBINE ENGINE COMPRISING SUCH BLADE AND TURBOJET ENGINE

摘要

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