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Mixed finite element method and applications to dynamic analysis of fluid-structure interaction systems subject to earthquake, explosion and impact loads

Xing, Jing Tang and Xiong, Yeping (2008) Mixed finite element method and applications to dynamic analysis of fluid-structure interaction systems subject to earthquake, explosion and impact loads In Proceedings of ISMA2008 International Conference on Noise and Vibration Engineering. Katholieke Universitert Leuven. 4384 pp, pp. 4055-4070.

Record type: Conference or Workshop Item (Paper)

Abstract

A mixed finite element method and corresponding computer code for dynamic analysis of fluid structure interaction systems subject to earthquake excitations, explosion waves and impact loads are presented. A variational principle is formulated to describe interaction dynamics and a mixed displacement-pressure finite element model is derived. To improve numerical efficiency, a substructure-subdomain technique is adopted. Three examples are presented to provide some engineering applications of the developed method and computer code. Example 1 concerns a LNG tank-water interaction system subject to an explosion pressure wave. Example 2 investigates the dynamics of a building structure-acoustic volume system subject to human footfall impacts. Example 3 studies a liquid storage tank excited by earthquake loads. Natural vibrations and dynamic responses of three examples are obtained and discussed for the designs of engineering products involving fluid-structure interactions.

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More information

Submitted date: February 2008
Published date: 15 September 2008
Additional Information: CD-ROM
Venue - Dates: 23rd ISMA Conference, 2008-09-15 - 2008-09-17
Keywords: fluid-structure interaction, sloshing dynamics, air-acoustic volume interaction, earthquake excitation, explosion waves, mixed fea method, two phase interface conditions, frequency shift techinique

Identifiers

Local EPrints ID: 63058
URI: http://eprints.soton.ac.uk/id/eprint/63058
ISBN: 9789073802865
PURE UUID: e2854d3c-c2b8-4741-937d-894d90331e1d
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 23 Sep 2008
Last modified: 30 Aug 2017 16:32

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