Dynamic Response Analysis of a Jumper in Subsea Production Facility Under Earthquake

LAI Wen-Long;TANG Wen-Yong;XUE Hong-Xiang

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (4) : 48-53.

PDF(2599 KB)
PDF(2599 KB)
Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (4) : 48-53.
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Dynamic Response Analysis of a Jumper in Subsea Production Facility Under Earthquake

  • LAI Wen-Long, TANG Wen-Yong, XUE Hong-Xiang
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Abstract

Dynamic responses of a jumper in subsea production facility under earthquake are analyzed. Seismic waves are input into subsea jumper in both horizontal and vertical direction, the nonlinear springs are used to simulate the soil- jumper interaction, and hydrodynamic forces due to earthquake are considered. Different models are analyzed and compared. It shows that vertical earthquake has more magnificent effect on the horizontal frequency of jumper dynamic response than the magnitude, the soil- jumper interaction increases the magnitude and stimulates higher modals, hydrodynamic forces have great influence on magnitude. In conclusion, the proposed approach provides strategy to the subsea jumper design and safety assessment.

Key words

Subsea production facility / Jumper / Dynamic response / Seismic waves / Nonlinear spring

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LAI Wen-Long;TANG Wen-Yong;XUE Hong-Xiang. Dynamic Response Analysis of a Jumper in Subsea Production Facility Under Earthquake[J]. Journal of Vibration and Shock, 2013, 32(4): 48-53
PDF(2599 KB)

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