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.

在技​​术应用中越来越多地使用了压电，例如功率传感器，超声声音源，定位设备，线性电动机或旋转电动机。随着原型的发展，近年来已经研究了描述压电材料（PZT）和机械设置的数学机械模型的发展。自1980年代以来，已经产生了Darmstadt Dynamics组，在两个领域中具有足够的能力，材料行为的研究以及其他有关压电剪切效应的研究，以及描述基于PZT的执行器动力学的模型的发展。该项目旨在最大程度地减少基于压电剪切效应的执行器技术中存在的差距，尤其是在超声波电机（USM）中。从理论上讲，这种操作模式应该具有出色的性能。但是，在实际应用中，很少使用它。计划研究的目的是对剪切执行器的动态，基于剪切效应的执行器的制定以及基于获得的经验的原型电机的部署。