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, Ye Ping (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. 23rd ISMA Conference Leuven, Belgium, Katholieke Universitert Leuven, 4055-4070. (ID562).

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Description/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.

Item Type: Book Section
Additional Information: CD-ROM
ISBNs: 9789073802865 (hardback)
Related URLs:
Keywords: fluid-structure interaction, sloshing dynamics, air-acoustic volume interaction, earthquake excitation, explosion waves, mixed fea method, two phase interface conditions, frequency shift techinique
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TH Building construction
Q Science > QA Mathematics > QA76 Computer software
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 63058
Date Deposited: 23 Sep 2008
Last Modified: 27 Mar 2014 18:44
URI: http://eprints.soton.ac.uk/id/eprint/63058

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