Seafloor Interaction with Steel Catenary Risers Conference Paper

abstract

• This paper describes the key features of a seafloor-riser interaction model. The soil is represented in terms of non-linear load-deflection (P- y) relationships, which are also able to account for soil stiffness degradation due to cyclic loading. The analytical framework considers the riser-seafloor interaction problem in terms of a pipe resting on a bed of springs, and requires the iterative solution of a fourth-order ordinary differential equation. A series of simulations is used to illustrate the capabilities of the model. Thanks to the non-linear soil springs with stiffness degradation it is possible to simulate the trench formation process and estimate moments in a riser. Copyright 2008 by The International Society of Offshore and Polar Engineers (ISOPE).

authors

• Aubeny, Charles

published proceedings

• PROCEEDINGS OF THE EIGHTEENTH (2008) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2

author list (cited authors)

• You, J., Biscontin, G., & Aubeny, C. P.

complete list of authors

• You, J||Biscontin, G||Aubeny, CP

publication date

• December 2008

published in

• Proceedings of the International Offshore and Polar Engineering Conference  Journal

keywords

• Finite Differences
• P-y Curve
• Steel Catenary Riser

International Standard Book Number (ISBN) 13

• 9781880653708

start page

• 110

end page

• 117