Accession Number:

ADA248251

Title:

Analytical Strength Formulas for Ship Hulls

Descriptive Note:

Technical rept. Sep-Dec 1991,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MATHEMATICS

Personal Author(s):

Report Date:

1992-02-21

Pagination or Media Count:

19.0

Abstract:

The subject of this report is a proposed new surface ship hull concept consisting of a double skin that wraps around the bottom, sides and main deck. The two skins are connected by plates normal to the surfaces, forming a cellular structure similar to a cardboard box. Modeling the ship hull as a circular cylindrical orthotropic shell surrounding an elastic core, we are able to obtain analytical formulas for estimating the principal stresses in such a structure, subjected to end bending moments and lateral pressure. These formulas indicate that the stiffness of the proposed bulkheads in the proposed design could be reduced by a factor of 10 without incurring significant secondary stresses in the double hull.

Subject Categories:

  • Marine Engineering
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE