Optimal Design of Submersible Frame Stiffened, Circular, Cylindrical Hulls

摘要

The report presents the results of a series of optimal design studies of submersible hulls. In this design procedure the designer specifies the design parameters such as the operating depth, hull diameter, hull segment length, hull eccentricity (out-of-roundness), construction material properties, the factors of safety to be used in design, the maximum and minimum values permitted for the design variables, and, when required, a maximum (when external frames are used) or minimum (when internal frames are used) frame diameter. The synthesis procedure selects those values of the design variables, plating, frame web and frame flange thicknesses, frame flange width, and frame spacing that minimize the hull weight/weight displaced ratio while still satisfying all the design equations conventionally used in submersible hull design. (Author)