Preliminary Propeller Selection Using the Wageningen B-Screw Series and a General Purpose Nonlinear Optimizer.

Abstract

This thesis presents the use of a general purpose nonlinear optimization program in the preliminary stage of ship design for the selection of a propeller based on methodical series propeller test data. The propeller series used is the well-known Wageningen B-Series. Three design cases -- representing the thrust, power and matching approaches to powering problems -- are formulated as FORTRAN subprogram analysis codes for solution by the synthesis/optimization program COPES/CONMIN. Designer constraints considered that diameter limitation; cavitation limit on expanded area ratio using Keller's criterion; and strength requirement determined by an empirical relation and by a method developed by Schoenherr with modifications by the author. Objective functions considered are maximized open water efficiency and minimized propeller blade weight. Optimized solutions to specific problems previously presented by other authors are obtained and results are compared.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA132414

Entities

People

  • Michael Peter Smith Ii

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computer Programming
  • Computer Programs
  • Engineering
  • Engineers
  • Linear Programming
  • Marine Engineering
  • Marine Propellers
  • Mechanical Engineering
  • Mechatronic Engineering
  • Naval Architecture
  • Open Water
  • Plastic Explosives
  • Propeller Blades
  • Propellers
  • Propulsion Systems
  • Ship Design
  • Three Dimensional

Readers

  • Aerodynamics.
  • Marine Hydrodynamics
  • Operations Research