EXPERIMENTAL STUDIES OF THE ACOUSTIC PROPERTIES OF A FINITE ELASTIC PIPE FILLED WITH WATER/AIR

✍ Scribed by L. Feng

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 445 KB
• Volume: 189
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1996.0032

✦ Synopsis

Vibration of, and sound power radiated from, a water/air-filled steel pipe are measured and analyzed. Two types of pipe terminal are employed in the experiments: embedded in sand boxes or without any absorption treatment. Comparisons are made between experiments and theoretical analysis. The measured wavenumbers agree well with those predicted as do modal responses and sound power of the air-filled pipe. For the water-filled steel pipe used in the test (inner diameter 150 mm), measured modal responses and sound power at high frequencies (higher than 4•5 kHz) are much lower than expected for the lossless model. Influences of pipe terminals on the coupling between the water and pipe are also examined.