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Nonlinear free vibration of reticulated shallow spherical shells taking into account transverse shear deformation

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Abstract

This paper deals with nonlinear free vibration of reticulated shallow spherical shells taking into account the effect of transverse shear deformation. The shell is formed by beam members placed in two orthogonal directions. The nondimensional fundamental governing equations in terms of the deflection, rotational angle, and force function are presented, and the solution for the nonlinear free frequency is derived by using the asymptotic iteration method. The asymptotic solution can be used readily to perform the parameter analysis of such space structures with numerous geometrical and material parameters. Numerical examples are given to illustrate the characteristic amplitude-frequency relation and softening and hardening nonlinear behaviors as well as the effect of transverse shear on the linear and nonlinear frequencies of reticulated shells and plates.

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Authors and Affiliations

  1. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai, 200092, China

    Rong Wang & Guohua Nie

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  1. Rong Wang
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  2. Guohua Nie
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Correspondence to Guohua Nie.

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Wang, R., Nie, G. Nonlinear free vibration of reticulated shallow spherical shells taking into account transverse shear deformation. Appl. Math. Mech.-Engl. Ed. 39, 1825–1836 (2018). https://doi.org/10.1007/s10483-018-2399-9

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  • DOI: https://doi.org/10.1007/s10483-018-2399-9

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Chinese Library Classification

2010 Mathematics Subject Classification

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