매끄러운 위상 최적화 기법을 활용한 이방성 압전 액추에이터 설계

Abstract

This study investigates the optimization of piezoelectric actuators by integrating anisotropic material properties with topology optimization (TO) techniques to enhance performance and manufacturability. The finite element method was employed to analyze the behavior and performance of piezoelectric actuators, revealing that anisotropic materials exhibit superior design potential compared to isotropic and moderately anisotropic materials. Optimized designs demonstrate complex polarization and deformation patterns, significantly improving actuator efficiency. However, anisotropy introduces challenges, such as stress concentrations and potential structural weaknesses, requiring careful design considerations. Building upon existing studies, this research not only addresses these challenges but also presents a novel approach by combining anisotropic material properties and smooth TO techniques, optimizing both structural performance and manufacturing feasibility. This integrated method provides practical advancements for additive manufacturing and expands the potential of piezoelectric actuators in highperformance aerospace and industrial applications.