On a Linear Property of Lightly Damped Systems

Item

Title
On a Linear Property of Lightly Damped Systems
Report Number
WL-TR-91-3078 Volume I, p. BCC-1 thru BCC-13
Creator
Liang, Z.
Lee, G. C.
Tong. M.
Corporate Author
State University of New York at Buffalo
Laboratory
Wright Laboratory
Date
1991
Date Issued
1991-08
Extent
13
Contract
Laboratory Research - No Contract
DoD Project
2401
DoD Task
240104
Identifier
ADA241311
Format
1 online resource
Abstract
As one of the direct applications of complex damping theory, a useful property of structural damping is presented in this paper. If a structure is linear and lightly damped, (i.e. the maximum damping ratio < 0 .. 3), then increased damping of the structure will result in proportional change in each modal damping ratio of the system. This property is particularly useful in damping re-design and damping measurement. A number of experimental and numerical exariples are also presented.
Description
As one of the direct applications of complex damping theory, a useful property of structural damping is presented in this paper. If a structure is linear and lightly damped, (i.e. the maximum damping ratio < 0 .. 3), then increased damping of the structure will result in proportional change in each modal damping ratio of the system. This property is particularly useful in damping re-design and damping measurement. A number of experimental and numerical exariples are also presented.
Distribution Classification
1
Distribution Conflict
No
DTIC Record Exists
No
Illinois Tech Related
No
Photo Quality
Not Needed
Report Availability
Full text available
Type
article
Media
article11