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Exponential stability of the semigroup associated with a non-homogeneous flexible beam with boundary damping. (English) Zbl 1163.35432

Summary: We show the exponential stability of the semigroup associated with the Euler-Bernoulli beam equation with boundary damping at one end, where the bending moment and shear force applied to that end are given in feedback form. In the model, we consider a non-homogeneous beam wherein the density, stiffness and damping depend on the spatial variable \(x\).

MSC:

35L35 Initial-boundary value problems for higher-order hyperbolic equations
35L75 Higher-order nonlinear hyperbolic equations
74K10 Rods (beams, columns, shafts, arches, rings, etc.)
35B35 Stability in context of PDEs
35B40 Asymptotic behavior of solutions to PDEs
93D15 Stabilization of systems by feedback