STATISTICAL ESTIMATION OF TANK STRESS BY TOTAL SYSTEM ANALYSIS FOR SPHERICAL TANK LNG CARRIER (PHASE I). INFLUENCE OF CORRELATIONS BETWEEN WAVE INDUCED LOADINGS ON TANK STRESS

This paper explains and discusses an analysis procedure called "Total System Analysis Phase I" procedure, which has been developed to accurately estimate long-term statistical values of the tank stresses. This procedure is an extension of the concept of the commonly-used statistical analysis of the long-term prediction of response of ship's motions and wave induced loadings. In establishing the procedure specific items such as the introduction of stress response functions and the approximation of probability density functions of tank stress local maxima (or minima) to Rayleigh distributions, etc. are discussed. These itmes are verified by numerical experiments by a computer. Hitachi Zosen-CBI Spherical Tank LNG Carrier has been analyzed by this procedure; the results show that the correlations between types of wave induced loadings have a large influence on the tank stress.

• Corporate Authors:

  Hitachi Zonsen Company Limited, Technical Inst

  60, Sakurajima Kitanomachi, Konohanaku
  Osaka,   Japan 
• Authors:
  • Harada, K
  • Tateishi, M
  • Ikeda, J
  • Kataza, T
  • Hiroi, T
• Publication Date: 1978-6

Media Info

• Features: References;
• Pagination: p. 81-88
• Serial:
  • Hitachi Zosen Technical Review
  • Volume: 39
  • Issue Number: 2

Subject/Index Terms

• TRT Terms: Analysis; Container tanks; Information processing; Liquefied gases; Liquefied natural gas; Loads; Ship motion; Statistical analysis; Stresses; Structural analysis; Tankers; Waves
• Uncontrolled Terms: Computer aided analysis
• Old TRIS Terms: Tank stresses; Wave induced loads
• Subject Areas: Data and Information Technology; Design; Marine Transportation;

Filing Info

• Accession Number: 00190422
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Mar 28 1979 12:00AM