FINITE ELEMENT MODELLING OF MACRO FIBER COMPOSITE WITH INTERDIGITATED ELECTRODE FOR ENGINEERING APPLICATIONS
Smart structures with Macro fiber composite (MFC) piezoelectric actuators have been increasingly applied in engineering.A simple but elaborate finite element model of the smart structures not only can predict vibration dynamics, but also can reduce challenges and computational expense in engineering application.Therefore, a simplified FEM developed to model MFC with interdigitated electrodes (IDEs) is proposed in this paper.A new scheme of FEM for IDEs in MFC is presented.With assuming the poling direction is along the same direction and voltage-progressive electrodes configuration in FEM, the piezoelectric elements employ an equivalent periodic tensile/compressive strain and constant electric potential in the poling direction.Numerical tests of free strain and blocking force and experimental methods are both employed to verify the FEM in this paper.A cantilever aluminum beam with a single MFC actuator is presented.The natural frequencies, vertical deflection and Modal Assurance Criterion (MAC) based on the resonant frequencies show the fidelity of the EF model agree well with experimental measurement.This work presented provides a novel FEM to model MFC for engineering applications such as vibration actuation.
Macro Fiber Composite actuators finite element model numerical test MAC Laser vibrometer ANSYS
Dan-dan HUANG
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200000, China
国际会议
The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)
成都
英文
463-470
2017-10-27（万方平台首次上网日期，不代表论文的发表时间）