PERFORMANCE OF UNDERWATER HORNS,

Abstract

The report presents the results of tests showing the performance of several types of experimental underwater horns, especially in regard to their effectiveness in increasing the radiation resistance loading on a vibrating transducer whose dimensions are small compared to the wavelength of the radiated sound. An NRL 2 kc transducer having a 5 in x 5 in radiating face was used as the driver and all the horns are of the same dimensions and shape except for the variations in their wall construction. Three steel horns were built in accordance with the requirements of the contract. In addition, a concrete horn structure was built outside the scope of the contract which incorporates proprietary ideas of a horn construction previously proposed for underwater applications. An experimental concrete structure also was built.

Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1964
Accession Number
AD0602368

Entities

People

  • Frank Massa Jr.

Tags

DTIC Thesaurus Topics

  • Concrete
  • Construction
  • Construction Materials
  • Contracts
  • Radiation
  • Radiation Resistance
  • Resistance
  • Transducers

Readers

  • Aerospace Test and Evaluation
  • Facility/Structural Engineering.
  • International Relations, focusing on Korea-Africa and North Korea-South Korea relations, and Nigeria-Latin American Relations.