A DESIGN AND ANALYSIS PROGRAM SYSTEM FOR OFFSHORE STRUCTURES

To design offshore structues for various conditions of the sea and weather to fully display the intended function and performances, it is indispensable to quantitatively grasp the behavior of the structures in the sea. Recently, in the research of seakeeping quality of a ship, much development has been made in the calculation method based on so-called Strip Theory. It is being applied to the rational design and study of proper operation of a ship having a proper seaworthiness. The authors have, with these ideas in mind, applied this concept to the analysis of motion responses of marine structures and developed a series of electronic computer programs from systematic calculation of hydrostatic characteristics to motion responses and strength analysis of offshore structures with complicate hull forms, such as semi-submersible vessels, tension leg platforms, jacket type platforms and jack-up rigs, as well as conventional vessels. By this computer program the following items can be calculated. Hydro-static characteristics, Motion responses, Inertia force, Wave loads, Strength analysis, and Statistical prediction of responses. Usefulness and rationality of the theory have actually been endorsed through its successful applications to practical design and comparisions with experimental results. This paper is intended to present the outline of a computer programming, its features and the method of theoretical calculation together with a few examples of its application.

• Corporate Authors:

  Mitsui Shipbuilding and Engineering Company, Ltd

  6-4 Tsukiji, 5-chome, Chuo-ku
  Tokyo,   Japan 
• Authors:
  • Kanetsuna, M
  • Tanaka, O
  • Kayanuma, H
  • Sato, T
  • Kobayashi, M
  • Hineno, M
  • Harada, K
• Publication Date: 1978

Media Info

• Pagination: p. 1-30
• Serial:
  • Mitsui Technical Review
  • Issue Number: 103
  • Publisher: Mitsui Shipbuilding and Engineering Company, Ltd

Subject/Index Terms

• TRT Terms: Computer programs; Force; Hydrostatic pressure; Inertial forces; Loads; Motion; Offshore platforms; Offshore structures; Semisubmersibles; Statistical analysis; Strength of materials; Structural design; Tension; Water waves; Waves
• Old TRIS Terms: Computer programs (Platform motions); Hydrostatic loading; Inertia force determination; Jack up rigs; Motion response of platforms; Offshore platform design; Platform motions; Strength analysis; Tension leg platforms; Wave forces on structures; Wave loads
• Subject Areas: Bridges and other structures; Data and Information Technology; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00184779
• Record Type: Publication
• Source Agency: Mitsui Shipbuilding and Engineering Company, Ltd
• Files: TRIS
• Created Date: Jan 13 1979 12:00AM