Simulation and Testing of a Tunable Organ Pipe for Ocean Acoustic Tomography
Teledyne Marine developed a system for the long-range ocean acoustic tomography, which uses a tunable, high-efficiency sound resonator. The high-Q resonator tunes to match the frequency and phase of a reference frequency-modulated signal. The analysis of a high-Q resonant organ pipe with an octal band 500-1000 Hz is analyzed using COMSOL Multiphysics® software. The finite analysis computer simulation gives the detailed picture of the resonator acoustics. The finite element simulation shows the structural acoustics of the tunable resonator. The results are compared with the experimental test. Application of COMSOL® software analysis predicted optimal parameters of the resonator and avoided a long series of water tests with parameters adjustment. The parameters of the sound source were close to the COMSOL simulations.
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