Axisymmetric dynamic instability of rotating polar orthotropic sandwich annular plates with a constrained damping layer

Yu Ren Chen, Lien Wen Chen, Ching Cheng Wang

研究成果: Article同行評審

27 引文 斯高帕斯(Scopus)

摘要

A sandwich annular plate built with two constrained layers of polar orthotropic material and a viscoelastic core layer is subjected to a periodic uniform radial stress while rotating. The axisymmetric dynamic instability of such a rotating sandwich plate is analyzed using finite elements. By employing a discrete layer axisymmetric annular element and Hamilton's principle, the finite element equations of motion that facilitate considerations of transverse shear effect shear effect are derived. The viscoelastic material in the core layer is assumed to be incompressible, and its extensional and shear moduli are described by complex quantities. The regions of dynamic instability are determined by Bolotin's method. Numerical results show that the constrained viscoelastic core layer tends to stabilize the sandwich annular plate system. In addition, the widths of instability regions decrease as the rotation speed increases.

原文English
頁(從 - 到)290-302
頁數13
期刊Composite Structures
73
發行號3
DOIs
出版狀態Published - 2006 六月

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 土木與結構工程

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