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- W2959687434 abstract "This paper investigates the potential use of an equivalent cylindrical shell model to analyze the vibration of a ring truss structure for a large deployable circular mesh antenna clamped along one generatrix. The simplified method, which reduces the three-dimensional cell structure into a two-dimensional “flattened” cell structure of the ring truss, is presented. According to the drum-like structure of the antenna, the equivalent cylindrical shell model of the ring truss structure is established. Using the flattened cell structure, the equivalent membrane stiffness and bending stiffness are derived by using the equivalent process and the homogenization method. The differential governing equation of motion for the equivalent cylindrical shell clamped along one generatrix is established based on the Donnell thin shell theory. The theoretical results are verified by numerical simulations. The natural frequencies of the equivalent cylindrical shell are calculated with the non-normal boundary condition clamped along one generatrix. The natural frequencies are compared to ones obtained using a full-scale model by using the finite element method (FEM). The mode shapes of the equivalent cylindrical shell agree well with the ones of the ring truss structure for the full-scale finite element." @default.
- W2959687434 created "2019-07-23" @default.
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- W2959687434 date "2019-10-01" @default.
- W2959687434 modified "2023-10-14" @default.
- W2959687434 title "An equivalent cylindrical shell model of vibration analysis based on simplified repeating unit cell for ring truss structure" @default.
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- W2959687434 doi "https://doi.org/10.1016/j.jsv.2019.114847" @default.
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