Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80349
Title: Modification of boundary condition for the optimization of natural frequencies of plate structures with fluid loading
Authors: Ou, D
Mak, CM 
Keywords: Boundary condition
Boundary element analysis
Finite element analysis
Fluid loading effects
Fluid mechanics
Genetic algorithm
Natural frequencies
Optimization
Plate structure
Issue Date: 2018
Publisher: SAGE Publications
Source: Advances in mechanical engineering, 2018, v. 10, no. 8 How to cite?
Journal: Advances in mechanical engineering 
Abstract: A finite element method, boundary element method, and genetic algorithm combined method is developed for the optimization of natural frequencies of fluid-loaded plates. In this method, the coupled finite element method–boundary element method is used for the free flexural vibration analysis of plates with arbitrary fluid loading effects and arbitrary elastic boundary conditions, and the genetic algorithm method is combined with the finite element method–boundary element method for searching the optimal values of plate’s boundary parameters. By using this method, multiple natural frequencies of a given fluid-loaded plate can be optimized simultaneously to different target values. The coupled finite element method–boundary element method is first validated by comparing with earlier published results. The proposed optimization method is then applied to the optimal boundary condition design of four different cases. The results show natural frequencies of a fluid-loaded plate are sensitive to its boundary conditions. The possibility of optimizing the natural frequencies of a fluid-loaded plate by modifying boundary conditions is demonstrated, as well as the effectiveness of the proposed method as a structural optimization tool. According to the authors’ knowledge, this study is the first attempt of optimizing fluid-loaded plate natural frequencies by considering arbitrary boundary conditions as optimization variables.
URI: http://hdl.handle.net/10397/80349
ISSN: 1687-8132
EISSN: 1687-8140
DOI: 10.1177/1687814018796008
Rights: © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
The following publication: Ou, D., & Mak, C. M. (2018). Modification of boundary condition for the optimization of natural frequencies of plate structures with fluid loading. Advances in Mechanical Engineering is available at https://doi.org/10.1177/1687814018796008
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