Propeller tip vortex - A possible contributor to aircraft cabin noise

forces may also be precalculated and the required analysis values interpolated using the parameter. Two elements of the modalized air force matrix corresponding to a bending mode and a torsion mode of a large transport are shown in Fig. 3. The aerodynamics are calculated using a lifting surface technique similar to the doublet lattice method of Ref. 3. The complex parameter p is also very useful for representing the modalized aerodynamics for the generalized motion required in active controls analysis.