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Title A brief study of complex viscous damping
Creator/Author Pastrnak, J.W. ; Hurty, W.C.
Publication Date1986 Oct 28
OSTI IdentifierOSTI ID: 7111811; DE87002750
Report Number(s)UCID-20913
DOE Contract NumberW-7405-ENG-48
Resource TypeTechnical Report
Resource RelationPortions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Research OrgLawrence Livermore National Lab., CA (USA)
Subject420000 -- 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 PublicationUnited States
LanguageEnglish
FormatPages: 14
AvailabilityNTIS, PC A02/MF A01; 1.
System Entry Date2001 May 13

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