Investigation of actuator debonding effects on active control in smart composite laminates

Bin Huang, Heung Soo Kim, Gil Ho Yoon

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This article presents a numerical study of active vibration control of smart composite laminates in the presence of actuator debonding failures. A comparison between the smart composite laminates with healthy actuator and various partially debonded actuator cases is performed to investigate the debonding effects on the vibration suppression. The improved layerwise theory with Heaviside's unit step function is adopted to model the displacement field with actuator debonding failure. The higher order electric potential field is adopted to describe the potential variation through the thickness. The finite element method-based formulations are derived using the plate element, taking into consideration the electromechanical coupling effect. The reduced-order model is represented by the state-space form and further for the vibration suppression using a simple constant gain velocity feedback control strategy. For the purpose of demonstration, a 16-layer cross-ply substrate laminate ([0/90]4s) is employed for the numerical study. The results show that the actuator debonding affects the closed-loop frequencies, active damping ratios, and efficiency of vibration suppression.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalAdvances in Mechanical Engineering
Volume7
Issue number4
DOIs
StatePublished - 1 Apr 2015

Keywords

  • Active control
  • Actuator debonding
  • Control performance
  • Smart composite laminate

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