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Accession Number:
ADA183084
Title:
Computational Methods in Ocean Structural Engineering - A Review.
Descriptive Note:
Final rept. Oct 82-Sep 84,
Corporate Author:
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
Report Date:
1987-05-01
Pagination or Media Count:
255.0
Abstract:
This report describes the state-of-the-art in computational methods for ocean structural engineering related to Navy shore and off-shore facilities. It is divided into three main parts wave loads, structural response, and reliability methods. The basics of fluid mechanics that relate to wave load hydrodynamics are presented so that the technical problems faced by engineers as they seek tractability in the solution of problems governed by the highly nonlinear Navier-Stokes equation are appreciated. The concept of added mass is shown to be a mathematical artifice, but nonetheless remains indispensible to tractability in computing wave loads. Emphasis is given to the derivation and numerical solution of the diffraction boundary value problem for hydrodynamic wave loads on partially or fully submerged, large structures. The Morison equation approach for determining wave loads on small, cylindrically shaped structural members is discussed. Boundary element methods play a large role in numerical situations for ocean wave forces. The structural mechanics of ocean cable systems in the context of finite element technology is discussed. The emphasis is on solution methods for the discrete nonlinear finite element equations. Keywords Potential flow Diffraction theory Towing Stability Parametric resonance Structural reliability.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
