“…1) The potential gradient (PG) method based on a series development of the elementary doublet function as introduced by Jones and Appa [18] for supersonic flows.…”
= number of mode shapes N = number of support points ! = circular frequency, rad=s, =p p = differential operator (d=dt), also eigenvalue of the flutter equation U = true air speed, m=s Subscripts i, j = mode number m = support point number
“…1) The potential gradient (PG) method based on a series development of the elementary doublet function as introduced by Jones and Appa [18] for supersonic flows.…”
= number of mode shapes N = number of support points ! = circular frequency, rad=s, =p p = differential operator (d=dt), also eigenvalue of the flutter equation U = true air speed, m=s Subscripts i, j = mode number m = support point number
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