Topology Optimization of Piezoelectric Structures : Micro-Actuators and Energy Harvesters

This paper reviews the primary research efforts conducted within the AS2M department of the FEMTO-ST institute, focusing on topology optimization of piezoelectric structures. The paper primarily highlights the principle and the possibilities offered by topology optimization with a specific emphasis on the SIMP approach (Solid Isotropic Material with Penalization). Then, the design processes of piezoelectric micro-actuators and energy harvesters are described. The optimized piezoelectric structures are presented and the improvements over classical designs are assessed. Finally, the paper discusses the feasibility and the potential of multi-material topology optimization.