Vibration and Performance Analyses Using Individual Blade Pitch Controls for Lift-Offset Rotors

Table 2

Changes in vibration and rotor performance using IBC with multiple harmonic inputs.

Control phase angle ()	Percent change
	Vibration index	Rotor effective lift-to-drag ratio
190°	−37.53	1.64
195°	−43.71	1.33
200°	−50.00	1.01