Kalantarova, J. V.Aliyeva, G. N.2023-06-162023-06-1620222076-25852219-1259https://hdl.handle.net/20.500.14365/3188We obtain uniform estimates for solutions of second-order nonlinear nonautonomous differential-operator equation in a Hilbert space with structural damping. It is shown that when the given source term in the equation tends to zero as t -> infinity, the corresponding solution of the Cauchy problem for this equation also tends to zero as t -> infinity. Exponential decay of solutions for the corresponding autonomous equation is also obtained. Applications to the initial boundary value problems for some nonlinear Kirchhoff type and beam equations are given.eninfo:eu-repo/semantics/closedAccessKirchhoff equationdamped beam equationstructural stabilityuniform estimatesexponential decay of solutionsStabilityArticle