Vibration and dynamic stability of a traveling sandwich beam

Wen Pei Yang, Lien-Wen Chen, Ching Cheng Wang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The vibration and dynamic stability of a traveling sandwich beam are studied using the finite element method. The damping layer is assumed to be linear viscoelastic and almost incompressible. The extensional and shear moduli of the viscoelastic material are characterized by complex quantities. Complex-eigenvalue problems are solved by the state-space method, and the natural frequencies and modal loss factors of the composite beam are extracted. The effects of stiffness and thickness ratio of the viscoelastic and constrained layers on natural frequencies and modal loss factors are reported. Tension fluctuations are the dominant source of excitation in a traveling sandwich material, and the regions of dynamic instability are determined by modified Bolotin's method. Numerical results show that the constrained damping layer stabilizes the traveling sandwich beam.

Original languageEnglish
Pages (from-to)597-614
Number of pages18
JournalJournal of Sound and Vibration
Volume285
Issue number3
DOIs
Publication statusPublished - 2005 Jul 22

Fingerprint

dynamic stability
Natural frequencies
Damping
State space methods
vibration
resonant frequencies
damping
thickness ratio
Elastic moduli
Stiffness
Finite element method
stiffness
finite element method
Composite materials
eigenvalues
shear
composite materials
excitation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

Cite this

Yang, Wen Pei ; Chen, Lien-Wen ; Wang, Ching Cheng. / Vibration and dynamic stability of a traveling sandwich beam. In: Journal of Sound and Vibration. 2005 ; Vol. 285, No. 3. pp. 597-614.
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Vibration and dynamic stability of a traveling sandwich beam. / Yang, Wen Pei; Chen, Lien-Wen; Wang, Ching Cheng.

In: Journal of Sound and Vibration, Vol. 285, No. 3, 22.07.2005, p. 597-614.

Research output: Contribution to journalArticle

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