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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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|
|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
|Date Deposited:||23 Sep 2008|
|Last Modified:||02 Mar 2012 12:13|
|Publisher:||Katholieke Universitert Leuven|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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