Sonar dome window damping and application procedure

摘要

A bow mounted steel sonar dome has a steel plating mounted on a rigid trusswork of circular rods and flat bars. Acoustically transparent damping tiles of graphite filled polymeric composite are mounted on the inside of the steel plating in a manner to prevent the entrapment of air between the plating and the damping tiles. Each damping tile has a plurality of tapered holes to allow any entrapped air between the steel and damping tile to collect in an adhesive slug that develops in the hole during manufacture.