Initial studies of structure coupling effects for a trolley/RRDF interface
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Authors
Teh, Chong-Ann
Subjects
Structure Coupling
Trolley
RRDF
Assumed Modes
Virtual Work
Trolley
RRDF
Assumed Modes
Virtual Work
Advisors
Papoulias, Fotis A.
Date of Issue
2003-03
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
The purpose of this thesis is to lay the foundation for analyzing structural coupling effects for a proposed trolley interface between a ship and a roll-on roll-off discharge facility (RRDF). Such a facility could allow heavy cargo transfer at higher sea states. Previous studies have analyzed motions assuming that there is no structural coupling between the trolley and the RRDF. A mathematical model that incorporates structural coupling is developed using the principle of virtual work. In order to assess the degree of necessity for the proposed model we conduct a systematic series of numerical experiments. In these calculations we model the trolley through a generalized stiffness coefficient and assess its influence on RRDF motions. It is shown that modeling of structural coupling may be necessary depending on the relative order of magnitude of trolley structural rigidity and trolley placement.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
xii, 63 p. : ill. (some col.) ;
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner.