The underwater towed cable-array system has great practical importance in naval oceanographic and geophysical applications. In naval application the cable-array system is used for acoustic detection of a submerged target, wherein a series of hydrophones housed in a flexible cylindrical tube (referred to as an array) is connected at one end of the electromechanical or fibre-optic cable. The other end of this cable is wound on a winch drum, installed onboard a surface ship to tow the array. This paper reports on laboratory experiments conducted for the loop manoeuvre of underwater towed models of a cable-array system. The purpose of the experiment is to record the cable-array configuration in the vertical and azimuthal planes, and measure the tow-point tension while the tow-ship model is performing a full 360 Grad loop manoeuvre at different radii and speeds, in the calm waters of the wave-basin test facility. The test setup utilises an underwater video camera, TV, VCR and a ring-type strain-gauge load cell. The X, Y, Z coordinates of the cable-array system are obtained by measuring frozen displays of the experimental configuration. The coordinate and tension results obtained from experiments are compared with computed values.


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    Title :

    Experimental investigations on loop manoeuvre of underwater towed cable-array system


    Contributors:

    Published in:

    Ocean Engineering ; 25 , 1 ; 85-102


    Publication date :

    1998


    Size :

    18 Seiten, 18 Bilder, 7 Tabellen, 6 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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