Seismic Response Analysis of Free Long-Span Submarine Flexible Pipelines under Earthquakes

Yu Lin Deng; Yu Bian; Fan Lei

doi:10.4028/www.scientific.net/AMM.580-583.1704

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Seismic Response Analysis of Free Long-Span...

Seismic Response Analysis of Free Long-Span Submarine Flexible Pipelines under Earthquakes

Abstract:

Submarine pipelines are described as the lifeblood of offshore oil and it is crucial to ensure the seismic safety of the submarine pipelines. Based on the fluid-structure interaction numerical analysis method and by using finite element software ADINA, the analysis models of the free long-span submarine flexible pipelines under earthquakes were established. By employing dynamic time-history method, the influences of fluid-structure interaction on the seismic response of the submarine pipelines were researched. The results showed that the peak normal stress and the peak displacement of submarine pipelines’ mid-span considering the influences of the fluid-structure interaction are greater than those without considering the influences, and the influences of the fluid-structure interaction on the seismic response of the submarine pipelines will increase with the increase of the submarine pipelines‘ diameter.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

1704-1707

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.1704

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Online since:

July 2014

Authors:

Yu Lin Deng*, Yu Bian, Fan Lei

Keywords:

Dynamic Analysis, Fluid Structure Interaction (FSI), Seismic Response, Submarine Flexible Pipeline

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* - Corresponding Author

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