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Title: Finite element analysis of two-dimensional nonlinear sloshing problems in random excitations
Authors: Wang, C.Z. 
Khoo, B.C. 
Keywords: Energy spectrum
Nonlinear wave velocity potential theory
Random waves
Issue Date: Feb-2005
Citation: Wang, C.Z., Khoo, B.C. (2005-02). Finite element analysis of two-dimensional nonlinear sloshing problems in random excitations. Ocean Engineering 32 (2) : 107-133. ScholarBank@NUS Repository.
Abstract: A two-dimensional nonlinear random sloshing problem is analyzed by the fully nonlinear wave velocity potential theory based on the finite element method. A rectangular container filled with liquid subjected to specified horizontal random oscillations is studied. Both wave elevation and hydrodynamic force are obtained. The spectra of random waves and forces have also been investigated, and the effects of the peak frequencies and spectral width of the specified spectrum used for the generation of the random oscillations are discussed. It is found that the energy mainly concentrates at the natural frequencies of the container and is dominant at the ith order natural frequency when the peak frequency is close to the ith order natural frequency. Some results are compared between the fully nonlinear solutions, the linear solutions and the linear plus second-order solutions. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Ocean Engineering
ISSN: 00298018
DOI: 10.1016/j.oceaneng.2004.08.001
Appears in Collections:Staff Publications

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