Bibliographic Citation
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Title | A brief study of complex viscous damping |
Creator/Author | Pastrnak, J.W. ; Hurty, W.C. |
Publication Date | 1986 Oct 28 |
OSTI Identifier | OSTI ID: 7111811; DE87002750 |
Report Number(s) | UCID-20913 |
DOE Contract Number | W-7405-ENG-48 |
Resource Type | Technical Report |
Resource Relation | Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted |
Research Org | Lawrence Livermore National Lab., CA (USA) |
Subject | 420000 -- Engineering; MECHANICAL VIBRATIONS-- DAMPING; EIGENVALUES;EIGENVECTORS;MATHEMATICAL MODELS;MECHANICAL STRUCTURES |
Description/Abstract | In the study of the vibration response of structures damping is often ignored since in many cases it is small.^There are cases, however, in which it cannot be ignored and a better understanding of the damped response is necessary.^The present study is directed toward structures in which damper devices are deliberately installed in order to control and reduce vibrations.^In these systems vibration response will be characterized by complex eigenvalues and eigenvectors.^This response has been called non-proportional damping in contrast to proportional damping in which eigenvalues and vectors are real.^Interpreted physically, this means that damped vibration modes are the same as the undamped modes in the latter case, whereas, they are quite different in the former case. |
Country of Publication | United States |
Language | English |
Format | Pages: 14 |
Availability | NTIS, PC A02/MF A01; 1. |
System Entry Date | 2001 May 13 |
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