Subsonic flutter suppression using self-straining actuators

Analytical (rather than purely computational) study, using full continuum models of bending-torsion wing flutter in inviscid subsonic aerodynamics. Performance evaluation of self-straining actuators for flutter suppression. Time domain analysis — unsteady aerodynamics — using the theory of semigroups of operators. Root locus of aeroelastic modes and precise operational definition of flutter speed. Analytical relationship of flutter speed to structure parameters too complex. Numerical results for the Goland wing model with torsion mode flutter. Finding: while effective in increasing structure damping prior to flutter, self-straining controllers have little or no effect on the flutter speed.