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Dynamic response analysis of an onshore LNG-storage tank interaction system subject to impact or earthquake loads

Dynamic response analysis of an onshore LNG-storage tank interaction system subject to impact or earthquake loads
Dynamic response analysis of an onshore LNG-storage tank interaction system subject to impact or earthquake loads
Liquefied Natural Gas (LNG) has become an increasingly important element for energy supplies and LNG terminals are planned and built to enable the import and export of LNG from producers to consumers. There are concerns from the communities near LNG terminals about the safety and security of onshore LNG storage tanks under different loads. This paper presents a numerical investigation of the dynamic behaviour of an LNG-tank interaction system subject to impact and earthquake to assess its safety. The coupling system is modelled by a mixed finite element approach where pressure and shell elements are adopted for LNG and the tank wall respectively. The natural characteristics of the dry tank, LNG sloshing in the rigid tank and the coupling system are calculated. The displacement / stress responses of the system are obtained. In the analysis, the multi-layered tank wall is idealised using shell elements with equivalent mechanical properties. An available earthquake data and empirical formula for the impact loads are used. The influence of the fluid-structure interactions is studied for various filling levels of the tank and the different loading conditions. Some conclusions for engineering applications are drawn from the outcome of the simulations.
flud-structure interaction, sloshing dynamics, LNG storage tank, earthquake dynamic response, aircraft impact response, FSIAP program
9788360716717
1-8
International Institute of Acoustics and Vibration
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Xing, Jing Tang
d4fe7ae0-2668-422a-8d89-9e66527835ce
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Xing, Jing Tang
d4fe7ae0-2668-422a-8d89-9e66527835ce

Tan, Mingyi, Xiong, Yeping and Xing, Jing Tang (2009) Dynamic response analysis of an onshore LNG-storage tank interaction system subject to impact or earthquake loads. In Proceedings of the Sixteenth International Congress on Sound and Vibration - ICSV16. International Institute of Acoustics and Vibration. pp. 1-8 .

Record type: Conference or Workshop Item (Paper)

Abstract

Liquefied Natural Gas (LNG) has become an increasingly important element for energy supplies and LNG terminals are planned and built to enable the import and export of LNG from producers to consumers. There are concerns from the communities near LNG terminals about the safety and security of onshore LNG storage tanks under different loads. This paper presents a numerical investigation of the dynamic behaviour of an LNG-tank interaction system subject to impact and earthquake to assess its safety. The coupling system is modelled by a mixed finite element approach where pressure and shell elements are adopted for LNG and the tank wall respectively. The natural characteristics of the dry tank, LNG sloshing in the rigid tank and the coupling system are calculated. The displacement / stress responses of the system are obtained. In the analysis, the multi-layered tank wall is idealised using shell elements with equivalent mechanical properties. An available earthquake data and empirical formula for the impact loads are used. The influence of the fluid-structure interactions is studied for various filling levels of the tank and the different loading conditions. Some conclusions for engineering applications are drawn from the outcome of the simulations.

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More information

Submitted date: February 2009
Published date: 5 July 2009
Venue - Dates: 16th International Congress on Sound and Vibration - ICSV16, Krakow, Poland, 2009-07-05 - 2009-07-09
Keywords: flud-structure interaction, sloshing dynamics, LNG storage tank, earthquake dynamic response, aircraft impact response, FSIAP program
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 66721
URI: http://eprints.soton.ac.uk/id/eprint/66721
ISBN: 9788360716717
PURE UUID: 1ea83c8f-2f15-4e95-9647-6aa3a400fd87
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 15 Jul 2009
Last modified: 07 Mar 2024 02:38

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