311 - Critical comparison of viscoelastc damping, electrorheological fluid and magnetorheological fluid core damping in cantilever skew plates
Narayana V.
Abstract
In this article, damping and frequency behavior of a cantilever skew sandwich plate having Viscoelastc layer (VEL) core or electrorheological (ER) fluid core or Magnetorheological Fluid core (MR) are determined by using finite element method. The behaviors obtained by these types are compared. The present study included effect of skew angle and core thickness on frequency as well as damping behaviors. In addition, influence of electric field and magnetic field on frequency and loss factor are investigated. In case of ER and MR, the complex shear modulus depends on electric field and magnetic fields respectively; therefore at higher electric and magnetic fields system becomes stiffer. The skew sandwich plate with VEL is stiffer and shows higher frequency than the sandwich plate with ER and MR core, it is due to fact that the complex shear modulus of VEL is much higher than ER and MR. But the sandwich plate with ER and MR have good damping characteristics than sandwich plate with VEL, it is due to fact that the shear parameter of ER and MR is higher in this particular boundary condition.
Citation
Narayana V.: Critical comparison of viscoelastc damping, electrorheological fluid and magnetorheological fluid core damping in cantilever skew plates, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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