Recent experience of crane operations in the North Sea has shown that the environmental load conditions imposed on offshore cranes are essentially dynamic in nature and not static as has been assumed in design calculations in the past. The design philosophy which applies a global impact factor to the static solution is erroneous and can no longer be justified on the basis that the technology does not exist to carry out such dynamic analyses. The paper presents a nonlinear theory of dynamic equilibrium and describes the methods for solving the resulting equations of motion. The theory is then applied to a typical offshore crane operating under various conditions and the implications of the analysis are discussed.

Media Info

  • Features: References;
  • Pagination: p. 497

Subject/Index Terms

Filing Info

  • Accession Number: 00331595
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: Volume 2 Conf Proc
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM