Publication Detail

The Dynamics of Towed Arrays

George Triantafyllou, Chryssostomos Chryssostomidis
6 pp.
MITSG 89-32J

Towed arrays of hydrophones are used for bottom exploration and target detection. The hydrophones are attached to a long, slender, flexible cylinder, which is towed horizontally. Since motions of the cylinder can induce uncertainties in the measurements of the hydrophones, the hydroelasticity of the cylind er is an important consideration. This report details a procedure for calculating the response of an array to a harmonic excitation at the upstream end. It is found that, when the separation drag is included, the array exhibits the behavior of an over-damped system, responding only to low-frequency excitations.

type: Technical reports

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