Computer Aided Geometrical Variation and Fairing of Ship Hull Forms.

Abstract

Two distinct aspects of computer aided ship design are addressed in this thesis. First, a geometrical hull form modification technique employing the longitudinal repositioning of sections is developed. The second aspect deals with the mathematical representation of lines and line fairing. Before this is done however, justification is presented for utilizing third degree polynomials as an approximation to the spline curves of the naval architect. The results obtained indicate that a fairing procedure based on a least squares curve fitting criteria and a lines representation procedure based on parametric cubic equations could be adapted to generate faired hull forms from the roughest preliminary hull design. Additionally, the hull form modification technique could be programmed so as to produce the designs with desired values of C sub p, LCB, C sub w and LCF from a basis design of similar type. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1978
Accession Number
ADA086640

Entities

People

  • Frederick Robertson Haberlandt

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Coordinate Systems
  • Crystal Structure
  • Curve Fitting
  • Engineering
  • Engineers
  • Equations
  • Geometry
  • Hulls (Marine)
  • Marine Engineering
  • Mechanical Engineering
  • Naval Architecture
  • Plastic Explosives
  • Procedures (Computers)
  • Ship Design
  • Ship Hulls

Readers

  • Approximation Theory.
  • Computational Modeling and Simulation
  • Marine Hydrodynamics