✦ LIBER ✦
Evaluation of ship radiated noise level from near-field measurements
✍ Scribed by Takaaki Musha; Akira Shinohara
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 537 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0003-682X
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✦ Synopsis
Recently it has become necessao' to determine far-field characteristics o[" marine vehicle noise from near-field measurements. It is possible to compute fitr-field characteristics from near-field measurements by using the Hehnholtz integral equation. But this method is not practical because a great number q[ points are required to obtain them. This paper presents a simple equation to obtain the source levels of marine vehich, s, which is used to evaluate far-field characteristics .fi'om near-field data. Good agreement with experimental results.from ships is obtained.