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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Optimization of matching layer structure for piezoelectric fiber composite ultrasonic actuator and performance testing
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Optimization of matching layer structure for piezoelectric fiber composite ultrasonic actuator and performance testing

机译：压电纤维复合超声致动器匹配层结构的优化与性能测试

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摘要

Orthotropic piezoelectric fiber composite is used as a functional material for new phased array transducer, which can be applied in a wide range of fields such as natural gas, power industry, aerospace and other nondestructive evaluation fields. The backing layer of the transducer affects the pulse width and axial resolution directly. In order to find transducers with good sensitivity and short pulses, the pulse shape and frequency response for orthotropic piezoelectric fiber composite elements have been studied both theoretically and experimentally. The acoustic impedance of velocity testing criterion has been provided, and the relative theory and experiment have also been researched. The results show that orthotropic piezoelectric fiber composite has lower acoustic impedance and higher mechanical coupling factor. Also, the sensitivity and bandwidth of orthotropic piezoelectric fiber composite ultrasonic actuator have been improved.
机译：正交各向异性压电纤维复合材料用作新型相控阵换能器的功能材料，可广泛应用于天然气，电力工业，航空航天和其他非破坏性评估领域。换能器的衬里层直接影响脉冲宽度和轴向分辨率。为了找到具有良好灵敏度和短脉冲的换能器，对正交各向异性压电纤维复合材料元件的脉冲形状和频率响应进行了理论和实验研究。给出了速度测试准则的声阻抗，并研究了相关的理论和实验。结果表明，正交各向异性压电纤维复合材料具有较低的声阻抗和较高的机械耦合因子。同样，正交各向异性压电纤维复合超声致动器的灵敏度和带宽也得到了提高。

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  • 作者

    Ziping Wang; Ying Luo; Bo Yu;

  • 作者单位

    Key Laboratory for Mechanical Structure Damage Detection Technology, China Machinery Industry Federation, Jiangsu University, Zhenjiang, China,Faculty of civil engineering and mechanics, jiangsu University, Zhenjiang, 212013, China;

    Key Laboratory for Mechanical Structure Damage Detection Technology, China Machinery Industry Federation, Jiangsu University, Zhenjiang, China;

    Key Laboratory for Mechanical Structure Damage Detection Technology, China Machinery Industry Federation, Jiangsu University, Zhenjiang, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Orthotropic piezoelectric fiber composite; ultrasonic; actuator; backing layer; optimization;

    机译：正交各向异性压电纤维复合材料;超声波执行器底层优化;

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