Stabilization and Decay Rate Estimation for AxiallyMoving Kirchho-type Beamwith Rotational Inertia under Nonlinear BoundaryFeedback Controls
Résumé
In this paper, we consider the stabilization of an axially moving
Kirchhoff-type beam with rotational inertia under controls of force
and torque at one boundary. The proposed negative feedbacks of the
transverse velocity and angular velocity applied at the control end
cover a large class of nonlinear feedback functions. The
well-posedness of the resulting closed-loop system is established
by means of the nonlinear semigroup theory, where the solution is
shown to be depending continuously on the initial value. The
asymptotic stability of the closed-loop system is guaranteed by
resolving a dissipative ordinary differential equation. The decay
rates of the vibration for some special nonlinear feedback
functions can be estimated by the dissipative ordinary differential
equation provided that growth restrictions on these nonlinear
feedbacks near the origin are required. Three types of examples
including exponential, polynomial and polynomial-logarithmic decay
forms are deduced, and the numerical simulations are presented to
verify the proposed control approach.
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