Optimal design 1-3 composite piezoelectrics

被引：18

作者：

Gibiansky, LV

Torquato, S

机构：

[1] Dept. of Civ. Eng. and Oper. Res., Princeton Materials Institute, Princeton University, Princeton

来源：

STRUCTURAL OPTIMIZATION | 1997年 / 13卷 / 01期

关键词：

D O I：

10.1007/BF01198372

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 [计算机应用技术]; 0835 [软件工程];

摘要：

An optimal design problem for piezoelectric composite hydrophones is considered. The hydrophone consists of parallel piezoelectric rods embedded in a porous transversely isotropic polymer matrix. We find the shape, volume fraction, and spatial arrangement of the piezoceramic rods, and the structure of the matrix material that maximizes the hydrophone performance characteristics. We found that the optimal composite consists of a hexagonal array of rods with small volume fraction, in a highly anisotropic matrix that is characterized by negative Poisson's ratios in certain directions. The performance characteristics of hydrophones with such a matrix are significantly higher than those with an isotropic polymer matrix. The results can be viewed as theoretical upper bounds on the hydrophone performance.

引用

页码：23 / 28

页数：6

共 17 条

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AVELLANEDA M, 1994, CALCULATING PERFORMA

[2]

SIMPLE-MODEL FOR PIEZOELECTRIC CERAMIC POLYMER 1-3 COMPOSITES USED IN ULTRASONIC TRANSDUCER APPLICATIONS [J].