Evaluation of Piezoelectric-based Composite for Actuator Application via FEM with Thermal Analogy

IF 1.5 Q3 MECHANICS
Alexander Kevin, M. Akbar, Leonardo Gunawan, Darryl Khalid Aulia, Rizqy Agung, S. S. Rawikara, R. A. Sasongko, D. Widagdo
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引用次数: 0

Abstract

In the present work, a new study on the piezoelectric-based structure by means of Finite Element Method (FEM) is conducted. Currently, the piezoelectric model in the FEM-based commercial software is only applicable via 2D plane stress and 3D solid elements. However, piezoelectric structures are usually manufactured as thin-walled structures, i.e., plates and disks. Therefore, it is more convenient to model a piezoelectric-based structure with 2D shell elements. In this study, FEM with a thermal analogy approach is implemented. Thermal coupling characteristics are utilised as the equivalent of electromechanical properties. Thermal analysis is much more established in FEM-based software; thus, applications with various types of elements are enabled. Therefore, the evaluation of piezoelectric structure via shell element with a thermal analogy approach could be performed. Static and dynamic analyses are conducted with experimental and numerical validations. As depicted in some details in this paper, the shell model with thermal analogy shows an excellent agreement with the 3D solid piezoelectric elements with insignificant variances, less than 0.3%.
通过有限元与热学类比评估压电基复合材料在致动器中的应用
本研究通过有限元法 (FEM) 对基于压电的结构进行了新的研究。目前,基于有限元法的商业软件中的压电模型仅适用于二维平面应力和三维实体元素。然而,压电结构通常是薄壁结构,即板和盘。因此,使用二维壳元素对基于压电的结构建模更为方便。在本研究中,有限元模型采用了热类比方法。热耦合特性等同于机电特性。热分析在基于有限元的软件中更为成熟,因此可以应用各种类型的元素。因此,可以通过壳元素和热类比方法对压电结构进行评估。通过实验和数值验证进行了静态和动态分析。正如本文详细描述的那样,采用热类比的壳体模型与三维实体压电元件显示出极好的一致性,差异小于 0.3%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.70
自引率
8.30%
发文量
0
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