Related Experiment Video
Updated: Jul 14, 2026

Measurement of Chladni Mode Shapes with an Optical Lever Method
Published on: June 5, 2020
The modal low frequency noise of an elastically supported circular plate
Wojciech P Rdzanek1, Witold J Rdzanek, Zbigniew Engel
1Department of Acoustics, University of Rzeszów, Rzeszów, Poland. wprdzank@univ.rzeszow.pl
Abstract:
The modal low frequency noise generated by a vibrating elastically supported circular plate embedded into a flat infinite baffle has been examined. The main aim of this study is the analysis of the radiation efficiency. Low frequency approximated formulas have been presented. They are valid for all the limiting boundary conditions of the plate with its edge clamped, guided, simply supported or free as well as for all the intermediate axisymmetric boundary configurations. The formulas are expressed in the elementary form, useful for numerical computations. They are a generalization of some earlier published results. First, they are valid for axisymmetric and asymmetric modes since both kinds of modes play an important role in the low frequency range. Second, a single formula for the radiation efficiency, valid for all the axisymmetric boundary configurations, has been proposed. A numerical example for the sound power radiation has been given for some hatchway covers mounted on a ship deck.
More Related Videos
10:52Conducting Elevated Temperature Normal and Combined Pressure-Shear Plate Impact Experiments Via a Breech-end Sabot Heater System
Published on: August 7, 2018
11:03An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Related Concept Videos
Fluid Pressure over Curved Plate of Constant Width
Fluid Pressure over Flat Plate of Constant Width
The resultant force...
Magnetic Damping
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
Fluid Pressure over Flat Plate of Variable Width
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
Steady, Laminar Flow Between Parallel Plates
Circular Shafts - Elastoplastic Materials
As torque on the...