Solid filled vibration isolation module for a towed sonar array

Details Solid filled vibration isolation module for a towed sonar array Solid filled vibration isolation module for a towed sonar array

1977-05-17

1978-05-16

Farley, Richard A.

Communications: electrical

Selective

Monitoring in addition to control

340 7R, 1741015, B63B 2100

Patent

active

040901688

ABSTRACT:
A vibration isolation module is interposed between a sonar array and its ing cable. A number of nylon cords contained within the vibration isolation module normally bear the load induced by the hydrodynamic drag of the array. Since the nylon cords are encased in a rubber-like envelope, noise and vibrations created by the towing cable are damped and prevented from overly interfering with the responsiveness of the sonar array. When, however, the array's drag is increased by, for example, a faster towing speed, the cords stretch and a central braided member bears the load. The braided member has a strength considerably in excess of the nylon cords to assure that the towed sonar array is not lost. Since the braided member is filled with a viscous material and there are no other voids in the rubber-like envelope, the module can be pulled through a hull penetrator to deploy or retrieve the sonar array.

REFERENCES:
patent: 3304364 (1967-02-01), Hetherington
patent: 3369216 (1968-02-01), Loper
patent: 3710006 (1973-01-01), Davis

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