Fluid Structure Interaction Of A Vibrating
Circular Plate In A Bounded Fluid Volume:
Simulation And Experiment
Author(s)
J. Hengstler & J. Dual
Abstract
The eigenfrequencies and damping of a vibrating circular plate resting in a finite
fluid domain are studied. A plate which is clamped at the center and free along
the edge is excited by a coil and the vibrations are measured with a laser scanning
vibrometer. A 3D model of the plate is built up in ANSYS, using the experimental
data as verification. The focus of this work is to investigate the influence of
boundaries like a wall or a free water surface on the eigenfrequency of the plate.
Also the damping of the circular plate for different water levels is measured.
Keywords: fluid structure interaction, circular plate, vibration, added mass effect.
1 Introduction
There are some papers in the literature where the fluid structure interaction of
circular plates are studied. Bauer [1] investigated a clamped circular plate which
fully covers a liquid filled container theoretically and numerically. Later Amabili
[2] made comparisons to the work of Bauer and studied also sloshing modes in
the case where the fluid filled container is larger than the circular plate. Kwak and
Han [3] studied the same problem and made some experiments to validate their
results. Amabili et al. [4] and Kwak and Amabili [5] studied the eigenfrequencies
of a fully submerged circular plate neglecting the influence of the near bottom of
their container and the free water surface theoretically and experimentally. Jeong
and Kim [6] investigated a fully submerged circular plate in a closed container
completely filled with fluid theoretically and numerically. Due to the fixed size
of the container the variation of the water depth below changes also the water
Keywords
fluid structure interaction, circular plate, vibration, added mass effect
Related Book
Other papers in this volume
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