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Impedance based structural health monitoring using an active piezoelectric sensor.

机译:使用有源压电传感器的基于阻抗的结构健康监测。

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摘要

Structural health monitoring is a new technology under development aiming to detect structural integrity damages at their incipient stage. Early detection of structural integrity damage can bring about appropriate repairs and retro reinforcements to prevent the progression of the damage from causing a catastrophic failure of the structure. An impedance-based sensing technique is one of the promising structural health monitoring systems. The impedance-based structural monitoring system uses a collocated piezoelectric actuator/sensor to interrogate the structure under test and measure the resulting impedance response of the sensor. Inspecting the deviations of the resulting impedance spectrum of a damaged condition of the structure from that of the "healthy" condition of the same structure, the structural integrity condition can be assessed. In this thesis, a collocated piezoelectric actuator/sensor was surface bonded on a cantilevered bolt jointed aluminum beam. (Abstract shortened by UMI.)
机译:结构健康监测是一种正在开发中的新技术,旨在在其初始阶段检测结构完整性损坏。及早发现结构完整性损坏,可以进行适当的维修和加固,以防止损坏的进展导致结构的灾难性破坏。基于阻抗的传感技术是有前途的结构健康监测系统之一。基于阻抗的结构监测系统使用并置的压电致动器/传感器来询问被测结构,并测量传感器的最终阻抗响应。检查结构损坏状态的所得阻抗谱与相同结构的“健康”状态的阻抗谱之间的偏差,可以评估结构完整性状态。本文将并置的压电致动器/传感器表面粘接在悬臂螺栓连接的铝梁上。 (摘要由UMI缩短。)

著录项

  • 作者

    Manchinila, Trilok Chander.;

  • 作者单位

    The University of Alabama in Huntsville.;

  • 授予单位 The University of Alabama in Huntsville.;
  • 学科 Engineering Mechanical.
  • 学位 M.S.
  • 年度 2005
  • 页码 54 p.
  • 总页数 54
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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