Report on Survey of Methods for Determining the Damping and the Acoustic Properties of Sonar Dome Materials.
Abstract
Materials intended for use in sonar domes are normally evaluated for damping and acoustic properties. For example, the sonar dome shell material is evaluated for damping properties; the acoustic 'window' material for transmission loss; and the baffles for both anechoic and decoupling properties. Because these properties are important factors in efficient sonar performance, it is essential that the activities developing sonar dome materials have available, reliable, meaningful methods for their evaluation. Preliminary investigation of test methods available to determine the damping and acoustic properties of materials revealed a lack of standardization. The methods used to study these properties were found to vary with the different investigators. As a result, it is frequently difficult and sometimes impossible to compare data obtained by the different activities engaged in this work. In view of this condition, a survey was planned in with the object of defining currently used test methods for evaluating damping and acoustic properties of sonar dome materials. The ultimate goal of this work is to develop meaningful, reliable test methods and to standardize these methods for use by laboratories evaluating sonar dome materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 16, 1966
- Accession Number
- ADA072570
Entities
People
- A. D. Stuart
- A. N. Savacchio
- G. Gerstel