Computer aided geometrical variation and fairing of ship hull forms
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Authors
Haberlandt, Frederick Robertson
Subjects
Advisors
Chryssostomidis, Chryssostomos
Date of Issue
1978-05
Date
May 1978
Publisher
Massachusetts Institute of Technology
Language
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 designs with desired values of
Cp, LCB, Cw and LCF from a basis design of similar type.
Type
Thesis
Description
This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library Collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.
Series/Report No
Department
Ocean Engineering
Organization
Massachusetts Institute of Technology