Accession Number:

ADA071225

Title:

Measurements on Goodyear Elastomer-Coated Reinforced Panels.

Descriptive Note:

Corporate Author:

NAVY UNDERWATER SOUND REFERENCE LAB ORLANDO FL

Personal Author(s):

Report Date:

1964-02-03

Pagination or Media Count:

12.0

Abstract:

Transmission loss measurements were made for seven elastomer-coated cord-reinforced panels, one elastomer-coated metal-reinforced panel, and one gum-rubber panel. The transmission loss of each panel was measured at 5 deg. intervals by an insertion loss method at orientations from 0 deg. to 45 deg. measured from a line normal to the test panel at the center. The results of these measurements are tabulated. Reflection from a panel which had a low transmission loss at all frequencies and angles, and one which had the highest transmission loss per inch thickness of the cord-reinforced materials, was measured over the frequency range 5 to 20 kc by both continuous-wave and pulsing techniques. The results by the two methods were substantially the same, and the reflection varied from 2 of incident-sound intensity for the first to 7 for the second panel. Measurements were limited to normal incidence and frequencies above 5 kc by panel size.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Elastomers and Rubber
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE