Dynamic Behavior of Submarine Pipelines Under Laying Operation

[+] Author and Article Information
N. Suzuki, N. Jingu

Technical Research Center, Nippon Kokan, K. K., Kawasaki, Japan

J. Energy Resour. Technol 104(4), 313-318 (Dec 01, 1982) (6 pages) doi:10.1115/1.3230421 History: Received September 07, 1981; Revised December 02, 1981; Online October 22, 2009


Theoretical and experimental study on dynamic behavior of submarine pipelines under laying operation with articulated stingers is described in this paper. Wave response tests in regular waves and forced oscillation tests in still water were conducted using the 1/20 scale model of 406.4 mm o.d. (16 in. o.d.) pipeline laid in 150 m (500 ft) water depth. The results show that: 1) the maximum dynamic bending moment of pipeline M D max occur at a stinger roller, 2) dynamic bending moment of pipelines M D at shorter periods are larger than those at longer periods, 3) the values of M D in an over-bend region depend highly upon stinger motion, 4) those of M D in a sag-bend region are less than M D max in an over-bend region, 5) the values of M D /HM Y increase as the stinger volume increases and that 6) stinger motion at shorter periods are different from those at longer periods.

Copyright © 1982 by ASME
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