Directional Sources in Wave-Based Acoustic Simulation

Directional Waveform Deformation and Directivity of Transient Acoustic Wave Radiation

Simulation of acoustic wave devices using Matlab

A review of the principles and applications of surface acoustic wave (SAW) devices is given. An implementation of a design method for SAW devices using MATLAB is described. Results of a comparison between the proposed simulation technique and experimental test results are

Accurate Simulation of Acoustic Emission Sources in Composite Plates

Acoustic emission (AE) signals propagate as the extensional and ßexural plate modes in thin composite plates and plate-like geometries such as shells, pipes, and tubes. The relative amplitude of the two modes depends on the directionality of the source motion. For source motions with large out-ofplane components such as delaminations or particle impact, the ßexural or bending plate mode dominat...

Simulation of turbulent acoustic sources in the Sun

Oscillatory behavior is one of the basic properties of the solar surface. Stochastic wave excitation in the turbulent convective medium and frequent interference of acoustic wavefronts make the problem of understanding of the mechanism of solar oscillations very complicated. In observational data individual wave excitation events overlap with other wave events. Nevertheless, individual impulsiv...

Rapid calculation of acoustic fields from arbitrary continuous-wave sources.

A Green's function solution is derived for calculating the acoustic field generated by phased array transducers of arbitrary shape when driven by a single frequency continuous wave excitation with spatially varying amplitude and phase. The solution is based on the Green's function for the homogeneous wave equation expressed in the spatial frequency domain or k-space. The temporal convolution in...