流体ジェットの横従動力を受ける片持ばりの圧電アクチュエータによる能動制御

概要

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Theoretical studies on the dynamic stability and the active Control of a cantilevered beam under a transverse follower force due to a fluid jet are presented in this paper. In order to stabilize the cantilevered beam, the active control force is derived from the bending moment produced by a piezoelectric actuator partially attached to the beam. The equations of motion afe reduced to a finite degree-of-freedom system with Galerkin's method. A control law is determined using the optimal regulator theory. Through the numerical calculations for various conditions, the effects of the internal viscous damping of the beam, the mass, rigidity, length and the location of the piezoelectric actuators on the stability of the uncontrolled beam are clarified. Moreover, the optimal location, mass, rigidity and length of the actuator for the control are discussed.
社団法人日本機械学会の論文
1990-07-25