HOLLOW FAN BLADE TUNING USING DISTINCT FILLER MATERIALS

摘要

PURPOSE: A hollow type fan blade tuning using distinct filling materials is provided to select a first material in order to supply additional rigidity to a fan blade and to select a second material in order to include excellent attenuation characteristic. CONSTITUTION: A hollow type fan blade tuning using filling material comprises a main body extended from between a front end corner and a rear end corner and channels formed in a main body. A plurality of ribs is extended in the center of the channels. The fan blade includes a dove foil and an airfoil extended from the dove foil to the outside of a radius direction. Two or more materials are accumulated in the channels. A first material is selected in order to supply additional rigidity to the fan blade, and a second material is selected for attenuation characteristic.