Shear actuation mechanism and shear-based actuation capability of an obliquely reinforced piezoelectric fibre composite in active control of annular plates

Abstract

In this work, the mechanism of shear actuation and the shear mode actuation capability of an obliquely reinforced piezoelectric fibre composite are investigated in active control of annular plates. This piezoelectric fibre composite is capable of providing extensional and shear actuation forces in a transverse plane of its Cartesian material coordinate system, and these actuation forces are utilized for shear-based actuation of an annular plate by embedding the piezoelectric fibre composite patches at the core of the plate. First, the mechanism of shear actuation of the annular sandwich plate is analysed, and it mainly reveals an adverse effect of the coupling between the transverse normal strain and shear stresses on the shear actuation forces, even though a good shear-actuated bending deformation of the annular plate is observed. So, next, the effectiveness of the piezoelectric fibre composite patches in shear mode active control of flexural vibration of the annular sandwich plate is investigated, where a shear-based feedback control arrangement is proposed for effective active control of the plate according to the velocity feedback control law. The analysis reveals an indicative shear actuation capability of this obliquely reinforced piezoelectric fibre composite, and thus it may be a potential material for shear-based active control of vibration of annular plates.

Dynamic Modelling and Control of Flexible Link Manipulators: Methods and Scope - Part 2

“…It results in the generation of concentrated forces and moments at the boundaries of the surface of the structure. Shear actuation mechanism [Sakib et al, 2017] (90) ; [Carrera et al, 2018] (84) ; [Dubey and Panda, 2019] (91) ; [Altammar et al, 2019] (92) ; [Carrison et al, 2020] (93) ; [Reddy et al, 2021] (88) ; [Gupta et al, 2021] (94) The piezoelectric actuator is poled in the direction perpendicular to the applied electric field. This induces shear stresses within the piezoelectric material.…”

Simulation and Experiment of Active Vibration Control Based on Flexible Piezoelectric MFC Composed of PZT and PI Layer

“…Piezoelectric fiber composites can be bonded in various types of systems or embedded into composite structures, bending and twisting forms under the action of the applied voltage in order to generate or counteract vibration. They can be used as strain gauges to sense deformation, noise, and vibration when there is no applied voltage [10][11][12]. Piezoelectric fiber composites can also be used in precision sensor technology in microscopic mass sensing and measurements of viscosity, stiffness, and many other physical quantities using methods of influencing the electrical substitution model of piezoresonators [13,14].…”

Electromechanical response of multilayered piezoelectric BaTiO3/PZT-7A composites with wavy architecture

“…As an important type of piezoelectric composites, the flat multilayered piezoelectric composites have been studied extensively. For instance, the multilayered piezocomposites are utilized to yield high hydrostatic piezoelectric response, to satisfy the demanding requirements of clinic ultrasound imaging (Cannata et al, 2006), and to improve the shear piezoelectric actuation of beams and annular plates via an off-axis lamination design (Dubey and Panda, 2019;Panda and Kumar Dubey, 2020), as well as to create effective energy harvesting devices via parallel links (Asano et al, 2020) or a stacking design (Kim et al, 2020). Further, to better understand the relation between the constituent material properties and the overall response of the layered system which would enable the tailoring of composite system's performance, the electromechanical response and homogenized material properties have been extensively investigated via both analytical and numerical approaches by various researchers (Camarena and Yu, 2019;Challagulla and Venkatesh, 2009;Kar-Gupta and Venkatesh, 2013;Kim et al, 2009;Wang et al, 2009;Zhang et al, 2019).…”