Abstract
A structural health monitoring (SHM) system for the purpose of maintenance cost reduction or performance guarantee of civil, mechanical and aerospace systems is proposed. The proposed system utilizes an active sensing diagnostic technique to predict the location of structure damage with a limited number of PZT elements and some vibrators if necessary. As PZT elements are inexpensive, small in size, and function as sensors and actuators, it is possible to integrate them into a structural component without reducing structural performance. In this study, an active sensing diagnostic technique using PZT elements is proposed to characterize damage in plates. Built-in PZTs working as Lamb wave emitters and receivers are used to predict damage by comparing differences of Lamb wave signals recorded before and after damage. Such differences are due to the change of the physical parameters relevant to damage in the structure. Amplitude modulation is used in this paper by actuating PZTs with different driving signals to effectively extract damage features. Modulated signals are processed to form feature vectors for support vector machines to estimate damage automatically.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | S.C. Liu |
| Pages | 21-29 |
| Number of pages | 9 |
| Volume | 5391 |
| DOIs | |
| Publication status | Published - 2004 |
| Event | Smart Structures and Materials 2004 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States Duration: 2004 Mar 15 → 2004 Mar 18 |
Other
| Other | Smart Structures and Materials 2004 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 04/3/15 → 04/3/18 |
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Keywords
- Amplitude modulation
- Damage detection
- Health monitoring
- Support vector machine
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Active damage detection method using support vector machine and amplitude modulation. / Mita, Akira; Taniguchi, Ryuta.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / S.C. Liu. Vol. 5391 2004. p. 21-29.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Active damage detection method using support vector machine and amplitude modulation
AU - Mita, Akira
AU - Taniguchi, Ryuta
PY - 2004
Y1 - 2004
N2 - A structural health monitoring (SHM) system for the purpose of maintenance cost reduction or performance guarantee of civil, mechanical and aerospace systems is proposed. The proposed system utilizes an active sensing diagnostic technique to predict the location of structure damage with a limited number of PZT elements and some vibrators if necessary. As PZT elements are inexpensive, small in size, and function as sensors and actuators, it is possible to integrate them into a structural component without reducing structural performance. In this study, an active sensing diagnostic technique using PZT elements is proposed to characterize damage in plates. Built-in PZTs working as Lamb wave emitters and receivers are used to predict damage by comparing differences of Lamb wave signals recorded before and after damage. Such differences are due to the change of the physical parameters relevant to damage in the structure. Amplitude modulation is used in this paper by actuating PZTs with different driving signals to effectively extract damage features. Modulated signals are processed to form feature vectors for support vector machines to estimate damage automatically.
AB - A structural health monitoring (SHM) system for the purpose of maintenance cost reduction or performance guarantee of civil, mechanical and aerospace systems is proposed. The proposed system utilizes an active sensing diagnostic technique to predict the location of structure damage with a limited number of PZT elements and some vibrators if necessary. As PZT elements are inexpensive, small in size, and function as sensors and actuators, it is possible to integrate them into a structural component without reducing structural performance. In this study, an active sensing diagnostic technique using PZT elements is proposed to characterize damage in plates. Built-in PZTs working as Lamb wave emitters and receivers are used to predict damage by comparing differences of Lamb wave signals recorded before and after damage. Such differences are due to the change of the physical parameters relevant to damage in the structure. Amplitude modulation is used in this paper by actuating PZTs with different driving signals to effectively extract damage features. Modulated signals are processed to form feature vectors for support vector machines to estimate damage automatically.
KW - Amplitude modulation
KW - Damage detection
KW - Health monitoring
KW - Support vector machine
UR - http://www.scopus.com/inward/record.url?scp=10044283273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=10044283273&partnerID=8YFLogxK
U2 - 10.1117/12.540268
DO - 10.1117/12.540268
M3 - Conference contribution
AN - SCOPUS:10044283273
VL - 5391
SP - 21
EP - 29
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Liu, S.C.
ER -