Effect of self-induced electric displacement field on the response of a piezo-bimorph actuator at high electric field

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• 作者：Nilanjan Chattaraj ; Ranjan Ganguli ; ^{ganguli@aero.iisc.ernet.in}
• 关键词：Piezoelectric bimorph ; Piezoelectric actuator ; High electric field ; Piezoelectric coupling coefficient ; Self-induced electric displacement field
• 刊名：International Journal of Mechanical Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：120
• 期：Complete
• 页码：341-348
• 全文大小：809 K
• 卷排序：120

文摘

Analysis of the electromechanical response of a piezoelectric bimorph operated by a constant voltage source is developed. The self-induced electric displacement field is considered using the extended Hamilton's principle for electromechanical systems. The tip deflection of a piezoelectric bimorph is affected by the self-induced displacement field. The short-circuit stiffness of a piezoelectric bimorph depends on the piezoelectric coupling coefficient.. The analytical results are validated with the experimental results published in literature.