Title

Reduction of Acoustic Responses using Viscoelastic Damping Materials

Description

This paper presents the results of a development test conducted at GE/ASD for reduction of acoustic responses of honeycomb panels using viscoelastic damping material. The damping strip consists of viscoelastic damping material, honeycomb core, and graphite constraint layer. Acoustic tests were conducted on the undamped and damped panels. The comparison of the acoustic responses with and without damping strip are presented. Analytical prediction of the reduction factors and their comparison with the test results are also described.

Creator

Chu, David F.

Stahle, C.

Peir, Jong

Staley, J.

McMeekin, M.

Publisher

Wright-Patterson Air Force Base, OH : Wright Laboratory, Flight Dynamics Directorate, Air Force Systems Command

Date

1991

Format

1 online resource (15 pages) : ill.

Type

article

Abstract

This paper presents the results of a development test conducted at GE/ASD for reduction of acoustic responses of honeycomb panels using viscoelastic damping material. The damping strip consists of viscoelastic damping material, honeycomb core, and graphite constraint layer. Acoustic tests were conducted on the undamped and damped panels. The comparison of the acoustic responses with and without damping strip are presented. Analytical prediction of the reduction factors and their comparison with the test results are also described.

Date Issued

1991-08

Extent

15

Corporate Author

GE/Astro Space Division

Laboratory

Wright Laboratory

Report Number

WL-TR-91-3078 Volume II, pages FBB-1 to FBB-15

DoD Project

2401

DoD Task

240104

Distribution Conflict

No

Index Abstract

Contrails only

Photo Quality

Not Needed

Distribution Classification

1

Report Availability

Full text available

Provenance

University of Colorado Colorado Springs, Kraemer Family Library

Identifier

ADA241312

Is Part Of

Proceedings of Damping '91: 13-15 February 1991 San Diego, California (EAA-1 through GBC-16)