Raorane Siddhesh, Stepinski Tadeusz, Packo Pawel
Department of Robotics and Mechatronics, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Krakow, 30-059, Poland.
Department of Robotics and Mechatronics, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Krakow, 30-059, Poland.
Ultrasonics. 2025 Jan;145:107483. doi: 10.1016/j.ultras.2024.107483. Epub 2024 Oct 3.
Applications of guided waves in various fields of engineering and science rely on elastic wave emitters for wave generation. Accurate prediction and understanding of the far-field responses of these wave emitters are crucial for the reliable and efficient application of guided waves-based technologies. In this paper, we propose a novel semi-analytical framework capable of predicting the far-field response of complex wave emitters of arbitrary shape and internal structure in any type of substrate. This framework is general, and is not confined to specific methods, enhancing its versatility. We applied the proposed semi-analytical framework to predict the directivity patterns of two different macro-fiber composite transducers, accurately modeled using their exact topologies. The framework's validity was experimentally confirmed by comparing the predicted directivity patterns with the results obtained from experimental measurements.
导波在工程和科学各个领域的应用依赖于弹性波发射器来产生波。准确预测和理解这些波发射器的远场响应对于基于导波技术的可靠且高效应用至关重要。在本文中，我们提出了一种新颖的半解析框架，该框架能够预测任意形状和内部结构的复杂波发射器在任何类型基底中的远场响应。此框架具有通用性，不限于特定方法，从而增强了其适用性。我们应用所提出的半解析框架来预测两种不同的宏观纤维复合换能器的指向性图，并使用其精确拓扑结构进行了精确建模。通过将预测的指向性图与实验测量结果进行比较，实验证实了该框架的有效性。
