Non-linear rolling of ships in large sea waves
Name
190861393-MIT.pdf
Description
Full printable version
Size
9.03 MB
Format
Adobe PDF
Checksum (MD5)
ebf9b56d584d036840a999da938bbc50
Author(s)
Vanden Berg, Scott M
Advisor(s)
Jerome H. Milgram.
Date Issued
2007
Publisher
Massachusetts Institute of Technology
Abstract
The United States Navy has taken a new interest in tumblehome hulls. While the stealth characteristics of these hull forms make them attractive to the Navy, their sea keeping characteristics have proven to be problematic. Normal approximations of sea keeping characteristics using linear differential equations with constant coefficients predict a very stable platform, while observations in model tests show a ship that is prone to extreme roll transients. This thesis examines a simple method of producing a non-linear simulation of roll motion using a tumblehome hull provided by the Office of Naval Research. This research demonstrates the significant difference that a variable restoring coefficient introduces into a hull's seakeeping characteristics.
Description
Thesis (S.M. in Naval Architecture and Marine Engineering and Mechanical Engineering)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
Includes bibliographical references (leaf 51).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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