Upper ball joint force variations due to riser tensioner and vessel motions - part II: analysis and computer simulation.

T. J. Kozik, J. E. Lovell, A. Ertas

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

An analysis of the variation of forces acting on the upper bal joint of a riser string due to drill ship motion and riser tensioner dynamic has been conducted. The analysis includes the effect of breakaway torque on the tensioner sheaves while assuming vessel and upper ball joint motion to be independent. General equations for the tensioner cable forces and for the forces exerted on the riser upper ball joint by the ship joint-tensioner system derived in Part I are solved. The variation in the tensioner cable forces is compared to data generated in field operation. (A)

Original languageEnglish
Title of host publicationOFFSHORE AND ARCTIC OPERATIONS SYMP., 1990. PAPERS PRESENTED AT THE 13TH ENERGY-SOURCES TECHNOLOGY CONF. & EXHIB., NEW ORLEAN
PublisherNew York, U.S.A., American Society of Mechanical Engineers
Volume29 )
ISBN (Print)0791804534, 9780791804537
StatePublished - 1990

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    Kozik, T. J., Lovell, J. E., & Ertas, A. (1990). Upper ball joint force variations due to riser tensioner and vessel motions - part II: analysis and computer simulation. In OFFSHORE AND ARCTIC OPERATIONS SYMP., 1990. PAPERS PRESENTED AT THE 13TH ENERGY-SOURCES TECHNOLOGY CONF. & EXHIB., NEW ORLEAN (Vol. 29 )). New York, U.S.A., American Society of Mechanical Engineers.