Abstract
This paper offers an actuating equation for MFC arc-plate structures to obtain MFC’s accurate actuating force and actuating bending moment to are-plate structures and increase MFC control effect on vibration. This paper proposes the P1 type MFC arc-plate actuating equation which considers the recombination action of MFC and controlled structure, and arc-plate curvature influence on MFC, obtaining the MFC actuating force and actuating bending moment for arc-plate structures. The vibration control experiment of MFC arc-plate structures is performed, and the deviation between finite element simulation results adopting this equation and the experimental data is less than 8.5 %. The research shows that the P1 type MFC actuating equation deduced in this paper is correct and fully applicative to the MFC vibration control simulation to arc-plate structures.
Highlights
The widely used piezoelectric materials include piezoelectric crystal and piezoelectric ceramics which, as fragile materials with poor flexibility and elasticity, cannot bend and be applied to curved surface structures such as sphere or cylinder
Domestic and overseas scholars have developed a new type of piezoelectric material – macro fiber composite (MFC) which makes piezoelectric ceramics fibrous and recombines it with organic polymer matrix according to different connection methods, volume ratios, and spatial distribution [1]
Shun-Qi Zhang et al [2] have established the finite element model pasted with MFC cantilever by applying the linear piezoelectric constitutive equation based on Reissner-Mindlin theory, and studied the impact difference on cantilever deformation made by different arrangement modes of piezoelectric fibers under normal pressure
Summary
The widely used piezoelectric materials include piezoelectric crystal and piezoelectric ceramics which, as fragile materials with poor flexibility and elasticity, cannot bend and be applied to curved surface structures such as sphere or cylinder. Jullière [4] have conducted active control over the thermal-induced deformation of cantilever with MFC and performed composite structure modeling and the experiment with finite element software, indicating that MFC has a remarkable effect on reducing the thermal-induced deformation of cantilever. Based on those studies, this paper deduces the actuating equation which considers the recombination action between MFC and the controlled structure and the actuating force in the radial direction made by MFC influenced by the arc-plate curvature.
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