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- Title
Simultaneous optimization of piezoelectric actuator topology and polarization.
- Authors
Gonçalves, Juliano F.; De Leon, Daniel M.; Perondi, Eduardo A.
- Abstract
This article addresses the problem of piezoelectric actuator design for active structural vibration control. The topology optimization method using the Piezoelectric Material with Penalization and Polarization (PEMAP-P) model is employed in this work to find the optimum actuator layout and polarization profile simultaneously. A coupled finite element model of the structure is derived assuming a two-phase material, and this structural model is written into the state-space representation. The proposed optimization formulation aims to determine the distribution of piezoelectric material which maximizes the controllability for a given vibration mode. The optimization of the layout and poling direction of embedded in-plane piezoelectric actuators are carried out using a Sequential Linear Programming (SLP) algorithm. Numerical examples are presented considering the control of the bending vibration modes for a cantilever and a fixed beam. A Linear-Quadratic Regulator (LQR) is synthesized for each case of controlled structure in order to compare the influence of the polarization profile.
- Subjects
PIEZOELECTRIC materials; ACTUATOR design &; construction; POLARIZATION (Electricity); TOPOLOGY; FINITE element method
- Publication
Structural & Multidisciplinary Optimization, 2018, Vol 58, Issue 3, p1139
- ISSN
1615-147X
- Publication type
Article
- DOI
10.1007/s00158-018-1957-8