Design and optimization of an OPFC ultrasonic linear phased array transducer

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• 作者：Ziping Wang ; Ying Luo ; Guoqi Zhao…
• 关键词：OPFC ; Ultrasonic phased array ; Transducer ; Array optimization ; Damage detection
• 刊名：International Journal of Mechanics and Materials in Design
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：13
• 期：1
• 页码：57-69
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Continuum Mechanics and Mechanics of Materials; Classical Mechanics; Characterization and Evaluation of Materials; Engineering Design;
• 出版者：Springer Netherlands
• ISSN：1573-8841
• 卷排序：13

文摘

In contrast to piezoceramics, orthotropic piezoelectric fibre composites (OPFC) which can be used as actuator/sensor elements in damage detection show clear advantages because of their high sensitivity along the fibre direction and directivity. The focusing acoustic field distribution of the OPFC phased array transducer is analyzed by the finite element method together with directivity analysis in metallic materials. The optimal array parameters such as spacing, width and number of elements are obtained by studying the total displacement changes as various parameters change at the focus point. The feasibility of an OPFC ultrasonic phased array transducer for damage detection is validated.