A time-space decomposition method for fast calculations of transient pressure fields generated by ultrasound phased arrays

Authors

  • James F. Kelly Dept. of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United States
  • Robert J. McGough Dept. of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United States

Keywords:

Acoustic arrays, Computation theory, Computer simulation, Pistons, Pressure effects, Time domain analysis, Wave equations, Circular pistons, Time-space decomposition, Transient pressure fields, Ultrasound phased arrays

Abstract

A rapid single integral approach has been developed for computing the time domain pressure generated by a baffled circular piston. A time domain solution to the lossless wave equation can be derived subject to an input pulse, which models the uniform normal velocity of the piston. A linear array of 129 circular elements is simulated with pistons of radius (0.30mm) and interelement spacing (0.90mm). It is concluded that an exact time-domain solution forms the basis for array simulations, which is accelerated by decomposing the spatial dependence of the integrand.

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Published

2005-09-01

How to Cite

1.
Kelly JF, McGough RJ. A time-space decomposition method for fast calculations of transient pressure fields generated by ultrasound phased arrays. Canadian Acoustics [Internet]. 2005 Sep. 1 [cited 2021 Sep. 24];33(3):106-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1767

Issue

Section

Proceedings of the Acoustics Week in Canada