Naval Architecture Conformal/Planar Array Sonar System.

摘要

This report presents the results of ship model tests conducted on a destroyer type hull form which was fitted with a number of array housings, each suitable for accommodating different sizes of horizontally oriented conformal/planar array sonar transducers. The basic hull form was developed from ship characteristics furnished by the Bureau of Ships. These tests were limited to obtaining resistance test data, flow test photographs and wave profile photographs; since these were considered sufficient to provide parametric naval architectural inputs to a trade-off analysis of hydrodynamic versus sonar performance. To aid in evaluating the hydrodynamic performance of these array housings, tests were also conducted for the basic hull without sonar appendages and for the basic hull with the dome for the AN/SQS-26 sonar transducer appended. All array housings tested offered considerable improvement in total ship resistance over the AN/SQS-26 dome throughout the low and moderate speed ranges. Relative sensitivities of changes in array dimensions upon total ship resistance are included in this report. Lines plans of the basic hull form and of the two array housings selected from the results of the preliminary trade-off analysis of hydrodynamic versus sonar performance have been furnished the David Taylor Model Basin (DTMB) for further ship model investigations including resistance, maneuvering, sea-keeping, directional stability, local flow behavior and cavitation inception. (Author)