PCA-based Method for Damage Detection Exploring Electromechanical Impedance in a Composite Beam

被引：0
|
作者：
de Oliveira, Mario A. [1 ]
Inman, Daniel J. [2 ]
机构：
[1] Fed Inst Educ Mato Grosso, Dept Elect & Elect, Cuiaba, MT, Brazil
[2] Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA
来源：
STRUCTURAL HEALTH MONITORING 2015: SYSTEM RELIABILITY FOR VERIFICATION AND IMPLEMENTATION, VOLS. 1 AND 2 | 2015年
关键词：
DELAMINATION;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work proposes to identify structural damage in a Structural Health Monitoring (SHM) system using the Electromechanical Impedance based-method. All analysis is carried out considering the time-domain structural response obtained from PZT transducers. Principal Component Analysis is applied to those response signals and PCA loadings are used as input to compute the statistical metrics Root Mean Square Deviation (RMSD) and Welch's t-test. At first, experimental tests were carried out on a carbon fiber beam. This analysis also incorporates variation in the voltage level for the excitation procedure. Furthermore, tests also were carried out in a composite plate. Damage was simulated by drilling holes in the beam and adding mass to the plate. At the conclusion results for both experimental tests are presented and discussed.
引用
收藏
页码：740 / 747
页数：8
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