Model
Digital Document
Publisher
Florida Atlantic University
Description
The energy flow and the acoustic radiation of fluid-loaded
panels are investigated using the Energy Accountancy
Concept. The various energy components of the systems are
defined and studied. Each component is a function of the
excitation, the structure, the medium and their coupling.
An energy balance equation is written for the system. This
method is applied to study the acoustic radiation from a
point-excited clamped plate placed on the free surface of a
water tank. The radiation efficiency of the plate is
measured and compared to previous works. The energy
balance equation gives very good results at frequencies
between 50 Hz and 12 kHz. An undefined source of energy
dissipation is observed in one experiment. The results of
this study have shown that the Energy Accountancy Concept
can be used to describe the energy flow in a vibrating
structure under water-loading.
panels are investigated using the Energy Accountancy
Concept. The various energy components of the systems are
defined and studied. Each component is a function of the
excitation, the structure, the medium and their coupling.
An energy balance equation is written for the system. This
method is applied to study the acoustic radiation from a
point-excited clamped plate placed on the free surface of a
water tank. The radiation efficiency of the plate is
measured and compared to previous works. The energy
balance equation gives very good results at frequencies
between 50 Hz and 12 kHz. An undefined source of energy
dissipation is observed in one experiment. The results of
this study have shown that the Energy Accountancy Concept
can be used to describe the energy flow in a vibrating
structure under water-loading.
Member of