Structural damage monitoring and localization with longitudinal wave measuring technique by PZT patches
Transactions of the Japan Society of Mechanical Engineers. C Volume 67 Issue 660
Page 2580-2586
published_at 2001-08
Title
圧電素子を用いた縦弾性波計測による構造物の損傷監視と位置同定
Structural damage monitoring and localization with longitudinal wave measuring technique by PZT patches
Creator Keywords
structural health monitoring
assessment of damage location
impedance-based technique
piezoelectric sensor/actuator
longitudinal wave propagation
This paper presents a practical and quantitative technique for assessment and localization of infancy damages in a structure by measuring the impedance change of piezoelectric patches which were glued on the structure. The consideration of longitudinal wave propagation in structures is introduced for quantitative assessment of damage characteristics because the corresponding frequency regions are easily determined with longitudinal wave propagation analysis. It is shown that the damage location can be simply estimated by measuring the PZT's electric impedance and comparing with the longitudinal strain mode shape functions in the healthy structure.
Languages
jpn
Resource Type
journal article
Publishers
日本機械学会
Date Issued
2001-08
Rights
Copyright: 日本機械学会 (The Japan Society of Mechanical Engineers)()
File Version
Version of Record
Access Rights
open access
Relations
[ISSN]0387-5024
[NCID]AN00187463
[isVersionOf]
[URI]http://www.jsme.or.jp/publish/ronbun/
Schools
大学院理工学研究科（工学）