文章基本信息

标题：Simulación numérica de una cerámica piezoeléctrica
本地全文：下载
作者：Nuria González-Salido ; Marcelino Ferri ; Noé Jiménez 等
期刊名称：Modelling in Science Education and Learning
印刷版ISSN：1988-3145
出版年度：2013
卷号：6
页码：131-144
DOI：10.4995/msel.2013.1990
语种：Spanish
出版社：Universitat Politècnica de València
摘要：In this paper, a mathematical model describing the dynamic behavior of a commercial piezoelectric ceramic, vibrating in thickness, is presented. This model solves, by finite differences, the piezoelectric equations which relate he mechanical and electrical phenomena produced in this kind of material. The behavior in time domain of some physical variables, as the electric field and particle velocity, is simulated too. In addition, we have implemented a GUI in Matlab that allows simple and affordable simulations for all users. The implemented interface provides two kind of study: Broadband and single frequency excitation. The output parameters, obtained after time domain simulation, are piezoelectric constants of the ceramic and the electric response in frequency domain, i.e. admittance and impedance curves. The results allow predicting vibration modes, electrical response and understanding the effect of piezoelectricity on the mechanical response.
其他摘要：In this paper, a mathematical model describing the dynamic behavior of a commercial piezoelectric ceramic, vibrating in thickness, is presented. This model solves, by finite differences, the piezoelectric equations which relate he mechanical and electrical phenomena produced in this kind of material. The behavior in time domain of some physical variables, as the electric field and particle velocity, is simulated too. In addition, we have implemented a GUI in Matlab that allows simple and affordable simulations for all users. The implemented interface provides two kind of study: Broadband and single frequency excitation. The output parameters, obtained after time domain simulation, are piezoelectric constants of the ceramic and the electric response in frequency domain, i.e. admittance and impedance curves. The results allow predicting vibration modes, electrical response and understanding the effect of piezoelectricity on the mechanical response.
关键词：Piezoelectricity;Finite differences;Ultrasound;Piezoelectricidad;Diferencias finitas;Ultrasonidos
其他关键词：Piezoelectricity; Finite differences; Ultrasound