https://scholars.lib.ntu.edu.tw/handle/123456789/636666
標題: | Traveling Wave Characteristics on Two-dimensional Finite Structures using Hilbert Transform | 作者: | Yang, Meng Han YU-HSIANG HSU CHIH-KUNG LEE |
關鍵字: | Hilbert transform | piezoelectric actuator | traveling wave | two-integer-frequency two-mode method | 公開日期: | 1-一月-2023 | 卷: | 12483 | 來源出版物: | Proceedings of SPIE - The International Society for Optical Engineering | 摘要: | In this study, we develop a method to analyze traveling waves generated by two bending modes of a two-dimensional piezoelectric actuator. This actuator has a composite structure constructed by a stainless-steel plate and piezoelectric PZT sheets. A developed analytical model analyzed the characteristics and efficiency of the traveling waves generated by the superposition of different bending modes. Using the multi-integer frequency, two-mode (MIF-TM) driving method, a steady traveling wave can be generated using two driving frequencies with an integer multiple relationships and near two bending modes. The optimization of the driving parameters is conducted by developing a cost function using the Hilbert transform, in which the driving voltages and the phase difference between the two driving frequencies are used. Finally, this analysis method is verified by using the finite element method. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/636666 | ISBN: | 9781510660731 | ISSN: | 0277786X | DOI: | 10.1117/12.2657425 |
顯示於: | 應用力學研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。