A software investigation of the radiation impedance of disc, cone and dome pistons

✍ Scribed by J.R. Wright

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 875 KB
• Volume: 35
• Category: Article
• ISSN: 0003-682X
• DOI: 10.1016/0003-682x(92)90039-u

✦ Synopsis

A BSTRA CT

The effects of radiation impedance on the acoustical output of a sound source are often dismissed or overshnplified. This paper addresses the effects of geometJ T on the radiation impedance of disc, cone and dome piston sources, by developing a geometrical model which can be easily implemented on a Personal Computer. The technique is found to be accurate for the disc, but h~itial attempts to extend the model to the non-planar sources demonstrate that the effects of reflections across the surface must be included. However, results at high .frequencies indicate that such modifications wouM be worthwhile.