FIELD: motors and pumps.
SUBSTANCE: wide-chord blade of the gas turbine engine fan consists of a metal shell and load-bearing power elements installed in the cavity inside the metal sheath and damping material. It contains an end plug, with which the load-bearing power elements are rigidly connected, which, in turn, are made of an alloy of titanium with aluminum, obtained by 3D printing. At the same time, 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 %, and the damping material is placed in the cavity between the load-bearing power elements. Load-bearing power elements can be pre-tensioned. Load-bearing power elements can have rectangular cross-section. Load-bearing power elements can have circular cross-section. Load-bearing power elements can be have quadrangular cross-section, with the two walls repeating the internal profile of the shell sections 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.
7 cl, 7 dwg
