Abstract In this paper, the effect of a 3D blade design on aerodynamic, aeroelastic and structural behavior scaled UHBR fan is investigated numerically. First, an initial sensitivity analysis for geometrical features sweep lean as well adaption thickness position in hub region conducted. Positive found to benefit total pressure ratio, while positive improves polytropic efficiency stage. Moving ...

As aircraft wings become much more flexible due to the use of light-weight composites material, adverse aerodynamics at off-design performance can result from changes in wing shapes due to aeroelastic deflections. Increased drag, hence more fuel burn, is a potential consequence. Without means for aeroelastic compensation, the benefit of weight reduction from the use of light-weight material cou...

The structural properties of Higher harmonic Aeroacoustic Rotor Test (HART I) blades have been measured using the original set of blades tested in the wind tunnel in 1994. A comprehensive rotor dynamics analysis is performed to address the effect of the measured blade properties on airloads, blade motions, and structural loads of the rotor. The measurements include bending and torsion stiffness...