Microactuation Using Piezoceramics

该项目包括分析和实验研究 压电陶瓷的三维几何形状 从而合成三维压电陶瓷 微执行器基于有限元的初步分析模型 将开发单元方法来预测 任意几何形状的三维压电陶瓷材料 在各种静态载荷条件下。 研究的目标是： . 为了扩大基于有限元的分析范围， 建模以可靠地预测三维 压电陶瓷几何形状 . 进行三维实验研究， 压电陶瓷的几何形状，以调查的水平 分析模型的性能，以及 . 开始三维的概念设计 压电陶瓷微执行器 长期目标是设计一个实用的三维 可执行压电陶瓷微定位装置 高度精确的平移和旋转，同时能够 同时施加巨大的表面力。 这种装置 预计将大大提高国家的 工业自动化技术也涉及微装配 如在医学中的外科应用。 ***

This project involves analytical and experimental investigations of piezoelectric ceramics of chosen three-dimensional geometries leading to synthesis of three-dimensional piezoceramic microactuators. Preliminary analytical models based on finite element methods will be developed to predict the behavior of three-dimensional piezoceramic materials of arbitrary geometries under a variety of static loading conditions. The goals of the research are: . To enhance the scope of the finite element based analytical modeling to reliably predict the behavior of three-dimensional piezoceramic geometries. . To conduct experimental studies on three-dimensional piezoceramic geometries to investigate the level of performance of the analytical models, and . To initiate conceptual designs of three-dimensional piezoceramic microactuators. The long term goal is to design a practical three-dimensional piezoceramic micropositioning device capable of executing highly precise translations and rotations, while capable of exerting large surface forces simultaneously. Such a device would be expected to significantly advance the state of the art in industrial automation involving micro-assembly as well as in surgical applications in medicine. ***