XII International Conference on Computing Mechanics and Advanced Applied Codes

Stabilizing of a nonconservative system by introduction of high frequency harmonic force

V. A. Postnov, G. A. Tumashik

State Marine Technical University of St. Petersburg

Abstract: The problem of stabilizing (increasing of the buckling load) of a cantilevered beam under partial follower force by additional introduction of high frequency harmonic force is considered. The stabilizing influence of this force on the behavior of a non-conservative system in divergence and flutter regions of instability is studied with two versions of additional harmonic force: “dead” and purely follower. Numerical results indicate on the high efficacy of the considered method for increasing of stability of elastic systems.

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