Upper ball joint force variations due to riser tensioner and vessel motions. Part I. Derivation of general equations

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

Research output: Contribution to conferencePaper

Abstract

A general equation for the tensioner cable forces and for the forces exerted on a riser upper ball joint by a ship joint-tensioner system are derived. An analysis of the variation of forces acting on the upper ball 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.

Original languageEnglish
Pages51-63
Number of pages13
StatePublished - Jan 1 1990
EventFossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition - New Orleans, LA, USA
Duration: Jan 14 1990Jan 18 1990

Conference

ConferenceFossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition
CityNew Orleans, LA, USA
Period01/14/9001/18/90

    Fingerprint

Cite this

Kozik, T. J., Lovell, J. E., & Ertas, A. (1990). Upper ball joint force variations due to riser tensioner and vessel motions. Part I. Derivation of general equations. 51-63. Paper presented at Fossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition, New Orleans, LA, USA, .