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This paper investigates nonlinear dynamic behaviors of a rotating blade subjected to the blast pulse. The rotating blade is simplified as a presetting, pretwist, rotating functionally graded material cylindrical panel. According to the power-law distribution, the effective material properties are assumed to be graded along the thickness direction. The centrifugal and Coriolis effects are considered in the structural model. Nonlinear strain-displacement relationships of the functionally graded material cylindrical panel are obtained by the Green strain tensor. The aerodynamic pressure is derived by the first-order piston theory. Based on the first-order shear deformation theory, nonlinear partial differential governing equations are obtained by using the Hamilton principle. Galerkin procedure is used to acquire the dynamic discrete system. Numerical simulations about nonlinear transient dynamic responses of the system subjected to the blast pulse are performed by considering the effects of different parameters of the functionally graded material cylindrical panel © Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.
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Year: 2019
Language: English
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