Analysing the Effects of Integrating Riser / Mooring Line Design

P.Chakrabarti, Zentech Inc.; R.Chandwani, I.Larsen, Zentech International

OMAE'96 Conference, Florence, Italy, June 16-20 1996

The design of riser and mooring systems for a floating production system usually assume uncoupled behaviour of the two systems, and each system is analysed for the effects of the vessel response given as input. In certain situations the presence of the risers can affect natural periods, damping, and slow drift response of the vessel thereby influencing the system design. This paper discusses a method for analysing the coupled riser/mooring system using Zentech's suite of programs with emphasis on the effect of the risers on the total system behaviour.