Free vibration analysis of functionally graded circular plate in contact with bounded fluid

Vibration of the structures in contact with fluid is a phenomenon that a structure has the interaction between the fluid. Hydroelastic characteristics of plates in contact with fluid are important in various engineering applications such as in nuclear engineering, liquid storage tanks, reactor internal components, and solar plates and offshore, naval or marine structures. Fluid-coupled vibrations may be caused the structural fatigue and failure. So, the control and debilitation of the hydoelastic characteristics are important in the safety positions. This study is focused on the hydroelastic vibration of FG circular plate in contact with the bounded fluid with clamped boundary conditions. The natural frequencies of the plate coupled with fluid are calculated by finite element software ANSYS. The software method is verified by comparing the results with the results obtained by experimental tests in case homogeneous plate (Aluminum). Finally, the effects of some parameters such as fluid density, fluid height and volume fraction index on natural frequencies are discussed in details.