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基于复损耗的杆式超声波电机定子建模及其仿真

, PP. 185-190

Keywords: 超声波电机,复损耗,振动模型,谐振状态,有限元仿真

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Abstract:

近些年来,采用压电材料的驱动结构和传感设备在工程中得到了广泛的应用。本文提出了一种使用压电陶瓷的微型杆式超声波电机,利用Rayleigh理论和等效的方法建立了定子的数学模型,并进一步提出了一种基于复损耗的谐振振幅的近似计算方法,同时使用Ansys有限元分析软件对比验证了数学模型的准确性。研究成果对于改善和优化超声波电机的输出性能以及考虑损耗的压电结构建模具有实践指导作用。

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