Coupled Responses of Partially Liquid-Filled Container with Multielastic Annular Baffles under Lateral Excitations
Publication: Journal of Aerospace Engineering
Volume 31, Issue 6
Abstract
The coupled responses of partially liquid-filled containers equipped with multielastic baffles subjected to lateral excitations have been investigated. The liquid domain has been divided into some subdomains. The analytical solutions of the velocity potential of the subdomains are obtained using the separation variable method. The wet modes of the multi baffles are then presented based on the dry-modal functions. Finally, the coupled modes are obtained by expressing the free surface equations, the continuity conditions, and the coupled vibration equations in the form of Fourier–Bessel series. The orthogonality among the natural modes of the coupled system has been proved. The dynamic response equations of the coupled system are established. The formulae of the coupled responses are derived. The effect of the baffle parameters on the coupled responses are discussed in detail. With the help of the MATLAB optimization toolbox, the present method can be used for the optimization of the baffled container subjected to seismic excitations.
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Acknowledgments
The financial supports from National Natural Science Foundation of China (Grant Nos. 11702117, 11172123), the Jiangsu Natural Science Fund Project (BK20160482), and the Natural Science Fund (16KJB130001) for colleges and universities in Jiangsu Province are greatly appreciated.
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Published In
Journal of Aerospace Engineering
Volume 31 • Issue 6 • November 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Jan 17, 2018
Accepted: May 7, 2018
Published online: Aug 13, 2018
Published in print: Nov 1, 2018
Discussion open until: Jan 13, 2019
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