Author(s): Z. G. Zhao; J. P. Dempsey
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Keywords: No Keywords
Abstract: The objective of this study is to investigate the dynamic response of a floating beam supported by a fluid. The fluid underneath the beam is modeled using twodimensional incompressible potential flow theory. The fundamental solutions are presented, and as an application, the dynamic behavior of a forced sub-surface uplift problem is studied. The comparisons with the solution obtained by an added mass model are made. The results reveal that the true hydrodynamic model increases the mass and damping of the beam significantly. Once the solution for the beam displacement is obtained, the other physical quantities of interest - the temporal and spatial distributions of the slope, moment, shear and even the buoyant force, the inertial force of the fluid and the inertial force of the beam - can be evaluated numerically. Advantageously, using superposition and the fundamental solutions presented in this paper, the solution for various loading cases can be readily obtained.
Year: 1992