Probability Based Ship Design: Implementation of Design Guidelines

摘要

This report displays a probabilistically based prototype code for the design ofimportant elements of a surface ship structure. It represents the first step toward the development of a reliability based code for surface ships. A reliability based code allows for the uncertainties in design variables (both in loading and structural resistance) to be explicitly taken into account and so provides an explicit framework for establishing safety levels. The examples include applications to a cruiser and a tanker. The work is presented in two major sections: (1) the results are expressed in a partial safety factor format for use in design so that the designer does not have to perform an explicit reliability analysis, and (2) the support (assumptions and methods) for the results is presented in appendices so that the designer can assess the applicability of a particular code section to the work being done.