Ultraschall-Motor basierend auf dem piezoelektrischen Schereffekt

基于压电剪切效应的超声波电机

• 批准号: 42165171
• 负责人: Professor Dr. Peter Hagedorn
• 金额: --
• 依托单位: Arbeitsgruppe Dynamik und Schwingungen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/42165171?language=en
• 关键词: Ultraschall; Motor; basierend; auf; dem

Piezoceramics are being used more and more in technical applications, such as power transducers, ultrasonic acoustic sources, positioning devices, linear motors or rotatory motors. Along with the development of prototypes, the development of mathematical-mechanical models describing the behavior of piezoelectric materials (PZT) and mechanical setups has been studied in recent years. In the Darmstadt dynamics group, an ample competence in both fields, the research in materials behavior, among others regarding the piezoelectric shear effect, as well the development of models describing the dynamics of actuators based on PZT, has been generated since the 1980's. This project aims at minimizing the gap existing in the technology of actuators based on the piezoelectric shear effect, especially in ultrasonic motors (USM). Theoretically, this mode of operation should have a superior performance; however in practical applications it is rarely used. The goal of the planned research is a deeper understanding of the dynamics of shear actuators, development of guidelines for shear-effect based actuators, and deployment of prototype motors based on the gained experience.

压电陶瓷在技术应用中的应用越来越广泛，例如功率传感器、超声波声源、定位装置、线性电机或旋转电机。近年来，随着原型的发展，描述压电材料 (PZT) 行为和机械装置的数学机械模型的发展也得到了研究。自 20 世纪 80 年代以来，达姆施塔特动力学小组在这两个领域都拥有丰富的能力，包括材料行为研究、压电剪切效应研究以及描述基于 PZT 的执行器动力学的模型的开发。该项目旨在最大限度地缩小基于压电剪切效应的执行器技术中存在的差距，特别是超声波电机（USM）。理论上，这种运行方式应该具有优越的性能；但在实际应用中很少使用。计划研究的目标是更深入地了解剪切致动器的动力学，制定基于剪切效应的致动器的指南，并根据所获得的经验部署原型电机。