›› 2015, Vol. 28 ›› Issue (7): 169-.

• 论文 • 上一篇    下一篇

基于PZT传感器的管道扭转模态激励效果研究

毛亚东,张伟,严有琪   

  1. (1.江苏省特种设备安全监督检验研究院 镇江分院,江苏 镇江 212000;
    2.江苏大学 机械工程学院,江苏 镇江 212013)
  • 出版日期:2015-07-15 发布日期:2015-07-13
  • 作者简介:毛亚东(1965—),男,高级工程师。研究方向:特种设备检验检测。E-mail:65688289@qq.com
  • 基金资助:

    江苏省科技基金资助项目(KJ(Y)2012049)

Research on Excitation of Torsional Mode in Pipes Based on the Piezoelectric Sensor

MAO Yadong,ZHANG Wei,YAN Youqi   

  1. (1.Special Equipment Safety Supervision Inspection Institute of Jiangsu Province,Zhenjiang 212013,China;
    2.School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)
  • Online:2015-07-15 Published:2015-07-13

摘要:

导波激励模态单一性与衰减特性是导波激励效果的重要指标。采用PZT传感器,在建立基于PZT-5材料传感器并置于管道一端均匀对称分布的导波激励系统的基础上,以模态单一性与降低衰减特性为目标,研究了在低频段内模态特性以及传感器对T(0,1)模态的影响,得出了激励T(0,1)模态的最优激励方案。

关键词: 超声导波, PZT传感器, 管道检测, 扭转模态

Abstract:

Modal unity and attenuation characteristics are important indicators of the incentive effects of guided wave.A guided-wave excitation system is established in which the PZT-5 wafers are symmetrical distributed at one end of the pipeline.In order to reduce the modal unity and attenuation characteristics,experiments have been conducted to study the effect of PZT wafer and modal characteristics on the T(0,1) mode.The optimal scheme to excitation of T(0,1) mode is obtained.

Key words: ultrasonic guided wave;PZT wafer;pipeline inspection;torsional mode

中图分类号: 

  • TP277