Nonlinear Effects on Long-Term Distributions of Wave-Induced Loads for Tankers

[+] Author and Article Information
C. Guedes Soares

Unit of Marine Technology and Engineering, Technical University of Lisbon, Instituto Superior Técnico, Avenida Rovisco Pais, 1096 Lisboa, Portugal

T. E. Schellin

Germanischer Lloyd, Vorsetzen 32 D-20459, Hamburg 11, Germany

J. Offshore Mech. Arct. Eng 120(2), 65-70 (May 01, 1998) (6 pages) doi:10.1115/1.2829525 History: Received April 01, 1997; Revised December 30, 1997; Online December 17, 2007


A method of long-term formulation of the nonlinear wave-induced vertical load effects on ships was applied to three tanker hulls of different sizes. For large tanker hulls, the nonlinear effect is not significant, and thus linear theories can continue to be used for earlier studies on these kind of ships, contrary to what was shown earlier for containership hulls. However, for smaller tankers, significant nonlinear values were obtained, with both sagging and hogging nonlinear results being larger than the linear ones.

Copyright © 1998 by The American Society of Mechanical Engineers
Topics: Stress , Waves , Tankers , Hull , Ships
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