A finite element, developed for straight generally layered smart beam, is used to investigate vibration damping capability of circuit elements. First, the electric state is analytically condensed to kinematical quantities and the mechanical model is then written for shear deformable Timoshenko’s beam including the effects of electro-elastic couplings stacking sequence. The contributions of the external electric loads on both the equivalent stiffness properties and the equivalent mechanical boundary conditions are also taken into account. The finite element is formulated by using Hermite shape functions, which depend on parameters representative of the staking sequence through the equivalent electro-elastic stiffness coefficients. It is found that the electric boundary conditions are transferred to the FEM representation as nodal work-equivalent axial forces and bending moments. The State Space representation is then invoked for the assembled smart beam FEM model to favour its implementation in block diagram environment for multidomain simulation. The damping capability of some circuitry arrangements are analysed to show the versatility of the proposed model.

Alaimo, A., Milazzo, A., Orlando, C. (2013). A FEM piezoelectric beam model for damping circuit analysis. In Proceedings of the Italian Association of Aeronautics and Astronautics XXII Conference.

A FEM piezoelectric beam model for damping circuit analysis

MILAZZO, Alberto;
2013-01-01

Abstract

A finite element, developed for straight generally layered smart beam, is used to investigate vibration damping capability of circuit elements. First, the electric state is analytically condensed to kinematical quantities and the mechanical model is then written for shear deformable Timoshenko’s beam including the effects of electro-elastic couplings stacking sequence. The contributions of the external electric loads on both the equivalent stiffness properties and the equivalent mechanical boundary conditions are also taken into account. The finite element is formulated by using Hermite shape functions, which depend on parameters representative of the staking sequence through the equivalent electro-elastic stiffness coefficients. It is found that the electric boundary conditions are transferred to the FEM representation as nodal work-equivalent axial forces and bending moments. The State Space representation is then invoked for the assembled smart beam FEM model to favour its implementation in block diagram environment for multidomain simulation. The damping capability of some circuitry arrangements are analysed to show the versatility of the proposed model.
Settore ING-IND/04 - Costruzioni E Strutture Aerospaziali
2013
Italian Association of Aeronautics and Astronautics XXII Conference
Naples
september 9th-12th
XXII
2013
2013
10
Alaimo, A., Milazzo, A., Orlando, C. (2013). A FEM piezoelectric beam model for damping circuit analysis. In Proceedings of the Italian Association of Aeronautics and Astronautics XXII Conference.
Proceedings (atti dei congressi)
Alaimo, A; Milazzo, A; Orlando, C
File in questo prodotto:
File Dimensione Formato  
076_Alaimo.pdf

Solo gestori archvio

Dimensione 283.94 kB
Formato Adobe PDF
283.94 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/100080
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact