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Reliability analysis of production ships with emphasis on load combination and ultimate strength

Abstract

This thesis deals with ultimate strength and reliability analysis of offshore production ships, accounting for stochastic load combinations, using a typical North Sea production ship for reference. A review of methods for structural reliability analysis is presented. Probabilistic methods are established for the still water and vertical wave bending moments. Linear stress analysis of a midships transverse frame is carried out, four different finite element models are assessed. Upon verification of the general finite element code ABAQUS with a typical ship transverse girder example, for which test results are available, ultimate strength analysis of the reference transverse frame is made to obtain the ultimate load factors associated with the specified pressure loads in Det norske Veritas Classification rules for ships and rules for production vessels. Reliability analysis is performed to develop appropriate design criteria for the transverse structure. It is found that the transverse frame failure mode does not seem to contribute to the system collapse. Ultimate strength analysis of the longitudinally stiffened panels is performed, accounting for the combined biaxial and lateral loading. Reliability based design of the longitudinally stiffened bottom and deck panels is accomplished regarding the collapse mode under combined biaxial and lateral loads. 107 refs., 76  More>>
Authors:
Publication Date:
May 01, 1995
Product Type:
Thesis/Dissertation
Report Number:
NEI-NO-675
Reference Number:
SCA: 423000; PA: NW-96:005293; EDB-96:151659; NTS-97:003349; SN: 96001673539
Resource Relation:
Other Information: DN: Reprints of two previously printed papers are attached; TH: Thesis (Dr.Ing.); PBD: May 1995
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; OFFSHORE OPERATIONS; SHIPS; RELIABILITY; ULTIMATE STRENGTH; DESIGN
OSTI ID:
377656
Research Organizations:
Trondheim Univ. (Norway). Norges Tekniske Hoegskole
Country of Origin:
Norway
Language:
English
Other Identifying Numbers:
Other: ON: DE97703291; ISBN 82-7119-792-4; TRN: NO9605293
Availability:
OSTI as DE97703291
Submitting Site:
NW
Size:
197 p.
Announcement Date:

Citation Formats

Wang, Xiaozhi. Reliability analysis of production ships with emphasis on load combination and ultimate strength. Norway: N. p., 1995. Web.
Wang, Xiaozhi. Reliability analysis of production ships with emphasis on load combination and ultimate strength. Norway.
Wang, Xiaozhi. 1995. "Reliability analysis of production ships with emphasis on load combination and ultimate strength." Norway.
@misc{etde_377656,
title = {Reliability analysis of production ships with emphasis on load combination and ultimate strength}
author = {Wang, Xiaozhi}
abstractNote = {This thesis deals with ultimate strength and reliability analysis of offshore production ships, accounting for stochastic load combinations, using a typical North Sea production ship for reference. A review of methods for structural reliability analysis is presented. Probabilistic methods are established for the still water and vertical wave bending moments. Linear stress analysis of a midships transverse frame is carried out, four different finite element models are assessed. Upon verification of the general finite element code ABAQUS with a typical ship transverse girder example, for which test results are available, ultimate strength analysis of the reference transverse frame is made to obtain the ultimate load factors associated with the specified pressure loads in Det norske Veritas Classification rules for ships and rules for production vessels. Reliability analysis is performed to develop appropriate design criteria for the transverse structure. It is found that the transverse frame failure mode does not seem to contribute to the system collapse. Ultimate strength analysis of the longitudinally stiffened panels is performed, accounting for the combined biaxial and lateral loading. Reliability based design of the longitudinally stiffened bottom and deck panels is accomplished regarding the collapse mode under combined biaxial and lateral loads. 107 refs., 76 refs., 37 tabs.}
place = {Norway}
year = {1995}
month = {May}
}