WIDE-CHORD FAN BLADE OF GAS-TURBINE ENGINE

摘要

FIELD: motors and pumps.;SUBSTANCE: wide-chord blade of the gas turbine engine fan consists of a metal sheath and rigidly supported power carriers mounted in the cavity inside the metal sheath and damping material. Power elements are made of a titanium-aluminum alloy, obtained by 3D printing. In this case, the percentage composition of titanium from the center to the periphery decreases from 100 % to 0 %, the percentage composition of aluminum rises from 0 % to 100 %. Damping material is placed in the cavity between the power carriers. Power carriers can be made in a rectangular cross-section. Power carriers can be made of circular cross-section. Power carriers can be made in a quadrangular cross-section, with the two walls repeating the internal profile of the sections of the shell in contact with them. Cavities between load-bearing power elements can be filled with a damping material. Change in the percentage composition of titanium and aluminum can be made discretely. Change in the percentage composition of titanium and aluminum can be made continuously.;EFFECT: simplified design and increased shock and vibration strength.;6 cl, 6 dwg