Title

Application of Statistical Energy Analysis to Vibrations of Multi-Panel Structures

Date

1967

Index Abstract

Coming Soon

Photo Quality

Not Needed

Report Number

AFFDL TR 67-79

Creator

Ungar, Eric E.

Koronaiois, Nicholas

Manning, Jerome E.

Corporate Author

Bolt Beranek and Newman, Inc.

Extent

112

Identifier

AD0822086

Access Rights

Export Control

Distribution Classification

1

DTIC Record Exists

No

Distribution Change Authority Correspondence

PER AFFDL LTR

Abstract

Experimentally determined vibratory mean square velocity distributions on a multi-panel planar structure and on a ring-and-stringer reinforced cylindrical shell are compared with predictions obtained from statistical energy analysis. Generally good agreement is observed. The flow of mechanical power between two panels that are separated by a reinforcing beam is studied, in order to uncover the important parameters and to provide information on the coefficients of proportionality between power flow and average modal energy difference, which one must know in order to apply statistical energy analysis. No analytical prediction methods are developed for these coefficients, but an empirical measurement technique is presented and is shown to yield consistent results. Analyses pertaining to dynamic response concentrations in plate and shell structures are summarized, and investigations of response characteristics and response statistics which warrant further pursuit are delineated.

Report Availability

Full text available

Date Issued

1967-08

Provenance

Lockheed Martin Missiles & Fire Control

Type

report

Format

1 online resource