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**Subsonic flutter suppression using self-straining actuators.**
*(English)*
Zbl 0981.74015

Summary: We present an analytical (rather than purely computational) study, using full continuum models of bending-torsion wing flutter in inviscid subsonic aerodynamics, and evaluate the performance of self-straining actuators for flutter suppression. A time domain analysis which uses the theory of semigroups of operators is employed to determine the root locus of aeroelastic modes and to give a precise operational definition of flutter speed. Numerical results are presented for Goland wing model with torsion mode flutter. The main result: while effective in increasing structure damping prior to flutter, self-straining controllers have little or no effect on the flutter speed.

### MSC:

74F10 | Fluid-solid interactions (including aero- and hydro-elasticity, porosity, etc.) |

76G25 | General aerodynamics and subsonic flows |

### Keywords:

bending-torsion wing flutter; inviscid subsonic aerodynamics; self-straining actuators; flutter suppression; time domain analysis; theory of semigroups of operators; aeroelastic modes; Goland wing model
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\textit{A. V. Balakrishnan}, J. Franklin Inst. 338, No. 2--3, 149--170 (2001; Zbl 0981.74015)

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### References:

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