NON-LINEARITIES IN SEMISUBMERSIBLE ROLL BEHAVIOUR UNDER FIRST AND SECOND-ORDER WAVE EXCITATION

This paper presents some findings from the last phase of a research programme on the influence of non-linear wave effects on the dynamic behaviour and stability of semisubmersibles. More specifically, the paper explores some non-linearities in the semisubmersible roll response, aiming to highlight their significance in affecting stability assessment. To enhance understanding of some of the qualitative aspects in the non-linear behaviour of semisubmersibles, an investigation is presented using a GVA 4000 semisubmersible, where conventional time domain simulation is combined with phase-plane analysis, highlighting the geometrical character os semisubmersible behaviour. Based on the derived results conclusions are drawn on the effectiveness of the existing procedures in assessing semisubmersible stability.

  • Supplemental Notes:
    • STAB 94, 5th Intl Conf on Stability of Ships and Ocean Vehicles; 7-11 Nov 1994; Melbourne, Florida, USA. Sponsored by SNAME, USA and RINA, UK. Procs. Publ by Florida Inst Technology, USA. Vol 1, Session 2 [15 p, 9 ref, 23 fig]
  • Authors:
    • SPYROU, K
    • Vassalos, D
  • Publication Date: 1994

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00710963
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM