The role of a crane ship in the construction of production platforms in the northern North Sea is described with special emphasis on a newly developed on-board computerized vessel performance monitoring and prediction system. The planning stages of the operation are discussed with reference to analytical studies performed in order to assess operational constraints such as module motions and velocities and their effects, ship motion parameters, relative motion, etc. and to compare the performance of different crane ships for the specific job. An onboard system capable of providing the crane ship operating personnel with an on-line access to the data along with real time monitoring of key operational parameters is described. A description of the system is given illustrating its modes of operation, i.e., automatic and trend display in the monitoring mode and a response simulation in the prediction mode. Examples of heavy lifts performed are illustrated, giving full account of the system application during the operation. The merits of the quantification of responses and their simulation prior to actual operation is illustrated and discussed.

  • Supplemental Notes:
    • Presented at the 10th Annual OTC in Houston, Texas, May 8-11, 1978.
  • Corporate Authors:

    Offshore Technology Conference

    6200 North Central Expressway
    Dallas, TX  United States  45206
  • Authors:
    • Hoffman, D
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00178168
  • Record Type: Publication
  • Source Agency: Offshore Technology Conference
  • Report/Paper Numbers: OTC 3147, Vol 2 Proceeding
  • Files: TRIS
  • Created Date: Jul 19 1978 12:00AM