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RESEARCH PAPERS

Optimum Design of Spread Mooring Systems

[+] Author and Article Information
H. L. Jones

Texas A&M University, College Station, Tex. 77843

J. K. Nelson

Exxon Company, USA, Houston, Tex. 77001

J. Energy Resour. Technol 104(1), 78-83 (Mar 01, 1982) (6 pages) doi:10.1115/1.3230384 History: Received January 12, 1981; Revised April 22, 1981; Online October 22, 2009

Abstract

The design of a spread mooring system of given pattern with single segment lines on a flat seafloor is formulated as a mathematical programming (optimization) problem. Design variables are the outboard length and initial tension in each line. Constraints limit maximum tension, anchor pull and anchor uplift for each line under each loading condition. Maximum vessel excursion is limited to a circle of specified radius. The optimal design is that which minimizes total weight of outboard line and is obtained by computer solution of the optimization problem. Three examples are presented to demonstrate the method.

Copyright © 1982 by ASME
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