Preliminary Experiments of a Structural Health Monitoring Method with an Accurately Controlled Small Vibrator and Wireless Sensor Networks
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Bibliografische Angaben
| Autor(en): |
Takahiro Otani
Takefumi Okumura Mika Tsukahara Katsuya Ishii Masayuki Saeki |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015 | ||||
| Veröffentlicht in: | IABSE Conference Nara 2015 | ||||
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| Seite(n): | 304-305 | ||||
| Anzahl der Seiten (im PDF): | 8 | ||||
| Jahr: | 2015 | ||||
| DOI: | 10.2749/222137815815775088 | ||||
| Abstrakt: |
This paper shows a structural health monitoring method based on artificially induced vibration response measurements. The method utilizes an accurately controlled small vibrator and multiple wireless sensors, and is capable of precisely measuring frequency response functions in a specified frequency band. The paper shows a design of the instruments and a structure estimation procedure which utilizes the above mechanical system. The procedure is based on the structural analysis of the linear N-degree-of-freedom system and formalizes the task as a maximum likelihood estimation problem. The effectiveness of the method is verified by a numerical simulation with a simple model, and its usability and limits are discussed. |
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