Accession Number : ADA298610

Title :   Optimization of an Advanced High Speed Hull Form.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Zajic, Henri W.

PDF Url : ADA298610

Report Date : 12 MAY 1995

Pagination or Media Count : 254

Abstract : It is the purpose of this research to examine the engineering process required to adequately predict the total resistance of unique hullforms. A comparison of the significant physical effects present in monohull and advanced hullforms testing is made. The historically accepted method of scaling using Froude's Hypothesis is studied and its underlying assumptions are considered in detail. An overall design philosophy is created for achieving resistance minimization through a range of operating speeds. This discussion is applied to a specific hullform called SLICE which is an adaptation of the Small Waterplane Area Twin Hull (SWATH) concept. To further develop the body of available SLICE resistance data, three models were built and tested at the US Naval Academy's 380 feet towing tank in Annapolis Maryland. The results of these tests is reported on and a video demonstration of their performance is provided as part of this report. Finally, a numerical method approach to the solution of Mitchell's integral is presented as a possible means of calculating SLICE wave making resistance. This is considered as an intermediate step tool in design optimization, useful after preliminary model tests are completed and before final designs are decided for powered model testing.

Descriptors :   *SHIP HULLS, *SWATH SHIPS, MARYLAND, OPTIMIZATION, DEMONSTRATIONS, TOOLS, PHYSICAL PROPERTIES, ENGINEERING, MODEL TESTS, SCALING FACTOR, NUMERICAL METHODS AND PROCEDURES, VIDEO SIGNALS.

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE