OPERABILITY ANALYSIS FOR A MONOHULL CRANE VESSEL

This paper presents calculations leading to the definition of operability for a monohull crane vessel, ITM CHALLENGER of 43,500 tons displacement, which is under construction for ITM (Offshore) Ltd. Wave induced forces and moments acting on the vessel are used in conjunction with a mathematical model of the vessel, crane and lift wire elasticity and the pendulum swing of the hook load to deduce the coupled motions of the vessel and the hook load, as well as to derive the magnitudes of vertical and lateral inertia forces on the crane jib. These results are used to derive a typical operability curve for the crane vessel. The potential Mathieu instability is also investigated and an envelope of conditions for stable motions is presented.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00358967
• Supplemental Notes:
  • Transactions paper
• Authors:
  • Patel, M H
  • Brown, D T
  • Witz, J A
• Publication Date: 1987

Media Info

• Features: References;
• Pagination: 11p., incl. discuss.
• Serial:
  • Royal Institution of Naval Architects Transactions
  • Volume: 129
  • ISSN: 0035-8967

Subject/Index Terms

• TRT Terms: Floating cranes; Mathematical models
• Old TRIS Terms: Monohulls; Operability
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00656763
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM