Adaptable integrated SHM system for metallic and composite structures

Tatu Muukkonen, H. Hytti, Henrik Huovila, Klaus Känsälä, Mikko Lehtonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Integrated structural health monitoring (SHM) system suitable for continuous use in industrial applications is presented in this research. The system integrates piezoelectric actuator and sensing technique with wireless data transfer, energy harvesting, online data check and signal analysis. The low power production of the local energy harvesting dominates both designing of the components as well as the basic operating principle of the integrated system. Generally the signal analysis methods used with Lamb wave based applications for structure diagnostics require both collecting a large number of data samples and relatively high computational capacity. This makes the SHM systems difficult to use on-line. In our system, only some key features from the piezoelectric sensor response to Lamb waves were measured and the original signal was reconstructed from those features. Simple and computationally effective signal processing, damage detection and analysis methods (e.g. correlation analysis) were then applied for the purpose of determining the condition of the structure. Demonstration of the independent components of the integrated system was successfully conducted including the piezoelectric actuator-sensor subsystem, sensor signal analysis, energy harvesting from vibration of the structure and wireless data transfer. The research further aims for the design and demonstration of an integrated system that can be tailored for specific applications in metallic and composite structures. (5 refs.)
Original languageEnglish
Title of host publicationProceedings of the 4th European Workshop on Structural Health Monitoring
Pages358-365
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
Event4th European Workshop on Structural Health Monitoring, EW SHM - Cracow, Poland
Duration: 2 Jul 20084 Jul 2008

Conference

Conference4th European Workshop on Structural Health Monitoring, EW SHM
Abbreviated titleEW SHM
CountryPoland
CityCracow
Period2/07/084/07/08

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Energy harvesting
Structural health monitoring
Signal analysis
Composite structures
Piezoelectric actuators
Data transfer
Surface waves
Sensors
Demonstrations
Correlation methods
Damage detection
Vibrations (mechanical)
Industrial applications
Signal processing

Cite this

Muukkonen, T., Hytti, H., Huovila, H., Känsälä, K., & Lehtonen, M. (2008). Adaptable integrated SHM system for metallic and composite structures. In Proceedings of the 4th European Workshop on Structural Health Monitoring (pp. 358-365)
Muukkonen, Tatu ; Hytti, H. ; Huovila, Henrik ; Känsälä, Klaus ; Lehtonen, Mikko. / Adaptable integrated SHM system for metallic and composite structures. Proceedings of the 4th European Workshop on Structural Health Monitoring. 2008. pp. 358-365
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Muukkonen, T, Hytti, H, Huovila, H, Känsälä, K & Lehtonen, M 2008, Adaptable integrated SHM system for metallic and composite structures. in Proceedings of the 4th European Workshop on Structural Health Monitoring. pp. 358-365, 4th European Workshop on Structural Health Monitoring, EW SHM, Cracow, Poland, 2/07/08.

Adaptable integrated SHM system for metallic and composite structures. / Muukkonen, Tatu; Hytti, H.; Huovila, Henrik; Känsälä, Klaus; Lehtonen, Mikko.

Proceedings of the 4th European Workshop on Structural Health Monitoring. 2008. p. 358-365.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Muukkonen T, Hytti H, Huovila H, Känsälä K, Lehtonen M. Adaptable integrated SHM system for metallic and composite structures. In Proceedings of the 4th European Workshop on Structural Health Monitoring. 2008. p. 358-365