Dynamic Response of an Infinite Beam Supported by a Fluid

by Z. G. Zhao, Clarkson Univ, Potsdam, NY, USA,
J. P. Dempsey, Clarkson Univ, Potsdam, NY, USA,

Document Type: Proceeding Paper

Part of: Engineering Mechanics


The objective of this study is to investigate the dynamic response of an infinite beam supported by a fluid on one side, and subjected to dynamic loading on the other side. The fluid underneath the beam is modeled using two-dimensional incompressible potential flow theory. Comparisons with the solution provided by an added mass model reveals that the effects of including the hydrodynamic reaction increase the mass of the beam significantly. Fundamental solutions are presented in this paper for a floating beam; by employing the superposition method, the solution for various loading cases can readily be obtained.

Subject Headings: Dynamic response | Beams | Fluid dynamics | Fluid flow | Two-dimensional flow | Structural models | Potential flow | Dynamic models

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