Title

On An Application Of Complex Damping Coefficients

Report Number

WL-TR-91-3078 Volume I, p. DCC-1 thru DCC-19

Creator

Tong, M.

Liang, Z.

Lee, G. C.

Corporate Author

State University of New York at Buffalo

Laboratory

Wright Laboratory

Date

1991

Date Issued

1991-08

Extent

19

Contract

Laboratory Research - No Contract

DoD Project

2401

DoD Task

240104

Identifier

ADA241311

Format

1 online resource

Abstract

Complex damping theory is a useful tool in analysis of energy transformations among modes of a vibration system. Based on this theory, there are many applications and improvements in the areas of system identification, vibration control and damper optimization design. This paper presents an application of the theory in regard to finite element model corrections. First, a common shortfall of usual correction procedures is analyzed. In order to deal with this problem, a correct correspondence rule is then proposed. With the help of complex damping coefficients, improvements to certain correction procedures are discussed.

Description

Complex damping theory is a useful tool in analysis of energy transformations among modes of a vibration system. Based on this theory, there are many applications and improvements in the areas of system identification, vibration control and damper optimization design. This paper presents an application of the theory in regard to finite element model corrections. First, a common shortfall of usual correction procedures is analyzed. In order to deal with this problem, a correct correspondence rule is then proposed. With the help of complex damping coefficients, improvements to certain correction procedures are discussed.

Distribution Classification

1

Distribution Conflict

No

DTIC Record Exists

No

Illinois Tech Related

No

Photo Quality

Complete

Report Availability

Full text available

Type

article

Is Part Of

Proceedings of Damping '91: 13-15 February 1991 San Diego, California (Pages AAC-1 through DCC-19)