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Based on nonlocal beam theories,the dynamic behavior of a simply supported Euler-Bernoulli nanobeam subjected to a moving force are studied in this paper.The governing equations of motion for the dynamic response of the nanobeam including nonlocal effects are derived by using Eringens theories.The analytic solution of differential equation is obtained using state-space method.The effects of nonlocal and magnitude of the moving force on the dynamic responses of the nanobeam are discussed in detail.The results indicate that nonlocal effects and moving force play a significant role on the dynamic response of nanobeam.