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Computer Aided Design of Semi-submersible for Deepwater Operations

Ruzanna Binti Abu Bakar, Ruzanna (2010) Computer Aided Design of Semi-submersible for Deepwater Operations. Universiti Teknologi Petronas. (Unpublished)

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In PETRONAS, there is no known design library of offshore floaters thus extensive iterative process is typically being engaged for concept design and selection work. Determination of specific parameters with respect to scaled model testing and calibration is not always straightforward, and involves cross referencing between numerical analysis and experimental testing. Hence, the objectives of the project are to develop semisubmersible’s hull section to eliminate some of the iteration in concept design and selection work by initiating a semi-submersible computer aided design (CAD) model library for future design selection work and to evaluate the stability of three different values of waterplane area of column of a semi-submersible CAD model at operating condition at the same water depth. The scope of the study is to focus on developing the hull section of a four-column ring pontoon semi-submersible production platform model using CATIA V5R12, the chosen parameter that will be varied is the waterplane area of the column under fixed design specifications and the semi-submersible’s stability will be analyze by vertical center of gravity and draft. The design library was achieved through literature review, calculation, part design and assembly design for CAD model development, application of parameters and formula function and analysis and data generation. The expected results would be three sets of semi-submersible’s hull CAD model that differ in waterplane area of column with automated selected parameters computation and an analysis on the relation of the waterplane area of column with draft and vertical center of gravity of each model. As a conclusion, the three CAD models of four-column ring pontoon semi-submersible’s hull and the analysis are the initiator for the offshore floaters design library which eliminates some of the iteration in conceptual design stage for future design selection work and the increment of waterplane area of column increases vertical center of gravity and reduces draft. Both conditions increased the probability of the semi-submersible to be flooded.

Item Type: Final Year Project
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1425

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