Despite routine usages of finite element (FE) analysis on designing piezoceramic transducers, building FE models for these transducers unfortunately might involve significant errors because the required piezoceramic material values provided by the manufacturers are often inaccurate. Using only a few characteristic quantities extracted from a measured impedance function of the transducer, this study develops a novel methodology for updating sensitive material parameters of a piezoceramic thin-walled tube transducer; both short- and open-circuit models are utilized. The effectiveness of the proposed methodology is demonstrated through two numerical examples, including both computer simulation and lab experiment.

尽管在设计压电陶瓷换能器时常规使用有限元 (FE) 分析，但不幸的是，为这些换能器构建 FE 模型可能会出现重大错误，因为制造商提供的所需压电陶瓷材料值通常不准确。本研究仅使用从测量的换能器阻抗函数中提取的几个特征量，开发了一种更新压电陶瓷薄壁管换能器敏感材料参数的新方法；短路和开路模型都被使用。通过两个数值例子，包括计算机模拟和实验室实验，证明了所提出方法的有效性。