Experimental Evaluation of Transmission Loss of a Glass Cylinder Tube Containing a Fluid ()
Abstract
Transmission Loss (TL) of a glass cylinder
tube containing a fluid is studied experimentally. This test specimen
represents a typical double layer panel including a fluid. The tests are
carried out by using a modified four-microphone standing-wave
(impedance) tube for specimens with different lengths, 15 and 30 mm. Each cylinder tube is tested filled with one of the fluids
at a time. The fluids are air, water, motor oil and a nanoparticle fluid (in absence of magnetic field). The effects of the cylinder length
(thickness), impedance tube terminations, and the containing fluid are
discussed. The increasing of the thickness led to an increase of the TL values and a decrease in
resonance frequencies. Also, the addition of liquid middle layer led to
considerable increase of the TL.
Share and Cite:
Mohammadi, N. (2014) Experimental Evaluation of Transmission Loss of a Glass Cylinder Tube Containing a Fluid.
Open Journal of Acoustics,
4, 13-19. doi:
10.4236/oja.2014.41002.
Conflicts of Interest
The authors declare no conflicts of interest.
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