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Sound Field Calculations of Elliptical Pistons by the Superposition of Two-Dimensional Gaussian Beams |
| ZHANG Yu;LIU Jin-Qiu;DING De-Sheng |
| Department of Electronic Engineering, Southeast University, Nanjing 210096 |
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| Cite this article: |
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ZHANG Yu, LIU Jin-Qiu, DING De-Sheng 2002 Chin. Phys. Lett. 19 1825-1827 |
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Abstract We present an alternative approach to calculate the sound field of ultrasonic transducers. The distribution function of sources is expanded into the superposition of a series of two-dimensional Gaussian functions. The corresponding radiated sound field is expressed as the superposition of these two-dimensional Gaussian beams and is then reduced to the computation of these simple functions. This treatment does not require the condition that the shape of source is of circular axial-symmetry. A numerical example is presented for the uniform elliptical piston transducer and is in good agreement with the results given by complicated computation.
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| Keywords:
43.20.Rz
43.20.Bi
43.20.El
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Published: 01 December 2002
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| PACS: |
43.20.Rz
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(Steady-state radiation from sources, impedance, radiation patterns, boundary element methods)
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43.20.Bi
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(Mathematical theory of wave propagation)
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43.20.El
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(Reflection, refraction, diffraction of acoustic waves)
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