Sound Absorbing Acoustic Horns

reportActive / Technical Report | Accession Number: ADA212831 | Open PDF

Abstract:

An exploratory study of acoustic horns as non-reflective liners for water-filled anechoic tanks was conducted. The goal was to determine if a suitably shaped horn could improve the reflection loss characteristics of acoustic materials. Horns were constructed and tested. In certain cases, the presence of a horn or an array of horns in an absorbing material clearly improved the process in which energy enters a material so that it may be absorbed.

Author(s):
Harrison, Richard W. ; Madigosky, Walter M. ; Vassos, Basil
Author Organization(s):
NAVAL SURFACE WARFARE CENTER SILVER SPRING MD
Descriptive Note:
Rept. for May-Aug 1986
Supplementary Note:
Prepared in collaboration with Puerto Rico Univ. DOI: 10.21236/ADA212831
Pagination:
0046

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NSWC-TR-86-38
Monitor Series:
NSWC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_1_Force Support; JCA_5.2_Understand; JCA_6_Net Centric; JCA_6.1.2_Wireless Transmission; JCA_1.2_Force Preparation; JCA_6.1_Information Transport; JCA_1.2.3_Educating; JCA_1.2.7_Experimentation; JCA_3.2_Engagement; JCA_3_Force Application
Communities of Interest:
Advanced Electronics
Descriptor(s):
*ACOUSTIC COATINGS, *ACOUSTIC HORNS, LOSSES, ACOUSTIC ABSORPTION, ACOUSTIC MATERIALS, ACOUSTIC REFLECTION, WATER TANKS, ABSORBERS(MATERIALS), SHAPE, ANECHOIC CHAMBERS
Field(s)/Group(s):
Test Facilities, Equipment and Methods, Acoustics
Keyword(s):
ACOUSTIC HORN ABSORBERS ANECHOIC TANKS, PE63562N
Report Date:
1986 Mar 14