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Archive of Applied Mechanics
Published in: Archive of Applied Mechanics 6/2021

15-04-2021 | Technical notes

Modal parameter calculation for viscoelastic composite structures from reduced order models

Authors: Lai Wei, Sheng Li

Published in: Archive of Applied Mechanics | Issue 6/2021

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Abstract

The moduli and loss factors of viscoelastic materials are frequency-dependent, which brings difficulty to solve the eigenvalue problems. In this note, an estimation method for resonance frequencies and loss factors of viscoelastic composite structures from reduced order models is presented. The reduced order model could be constructed from calculated or measured forced vibration data, and there is no need to know the specific structural matrices or to solve the eigenvalue problem of the vibration system directly. Thus, the difficulties caused by frequency-dependent behaviors of moduli and loss factors of viscoelastic materials are avoided. Numerical examples are presented to illustrate and validate the method.
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Metadata
Title
Modal parameter calculation for viscoelastic composite structures from reduced order models
Authors
Lai Wei
Sheng Li
Publication date
15-04-2021
Publisher
Springer Berlin Heidelberg
Published in
Archive of Applied Mechanics / Issue 6/2021
Print ISSN: 0939-1533
Electronic ISSN: 1432-0681
DOI
https://doi.org/10.1007/s00419-021-01936-y

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