FAN, GAS TURBINE ENGINE WITH A FAN, AND METHOD FOR CREATING A GAS TURBINE ENGINE FAN

摘要

A gas turbine engine includes a fan mounting a first group of blades and a second group of blades. The first group of blades and the second group of blades share a profile shape. The first group of blades have a first laminate composition, and the second group of blades have a second laminate composition, distinct from the first laminate composition. A frequency of a vibratory mode of the first group of blades is offset from a frequency of a vibratory mode of the second group of blades. A corresponding method of creating a gas turbine engine is also provided.