Smart Structures and Systems

  • 제7권5호
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  • Pages.365-378
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  • 2011
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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A low cost miniature PZT amplifier for wireless active structural health monitoring

  • Olmi, Claudio (Department of Electrical Engineering, University of Houston) ;
  • Song, Gangbing (Department of Electrical Engineering, University of Houston) ;
  • Shieh, Leang-San (Department of Electrical Engineering, University of Houston) ;
  • Mo, Yi-Lung (Department of Civil Engineering, University of Houston)
  • 투고 : 2009.12.20
  • 심사 : 2011.03.09
  • 발행 : 2011.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Piezo-based active structural health monitoring (SHM) requires amplifiers specifically designed for capacitive loads. Moreover, with the increase in number of applications of wireless SHM systems, energy efficiency and cost reduction for this type of amplifiers is becoming a requirement. General lab grade amplifiers are big and costly, and not built for outdoor environments. Although some piezoceramic power amplifiers are available in the market, none of them are specifically targeting the wireless constraints and low power requirements. In this paper, a piezoceramic transducer amplifier for wireless active SHM systems has been designed. Power requirements are met by two digital On/Off switches that set the amplifier in a standby state when not in use. It provides a stable ${\pm}180$ Volts output with a bandwidth of 7k Hz using a single 12 V battery. Additionally, both voltage and current outputs are provided for feedback control, impedance check, or actuator damage verification. Vibration control tests of an aluminum beam were conducted in the University of Houston lab, while wireless active SHM tests of a wind turbine blade were performed in the Harbin Institute of Technology wind tunnel. The results showed that the developed amplifier provided equivalent results to commercial solutions in suppressing structural vibrations, and that it allows researchers to perform active wireless SHM on moving objects with no power wires from the grid.

키워드

참고문헌

  1. Chang, P.C., Flatau, A. and Liu, S.C. (2003), "Review paper: health monitoring of civil infrastructure", Struct. Health Monit., 2, 257-267. https://doi.org/10.1177/1475921703036169
  2. Naidu, A.S.K. and Soh, C.K. (2004), "Damage severity and propagation characterization with admittance signatures of piezo transducers", Smart Mater. Struct., 13(2), 393-403. https://doi.org/10.1088/0964-1726/13/2/018
  3. Gu, H., Olmi, C. and Mo, Y.L. (2007), "Structural health monitoring of a concrete frame structure using piezoceramic based smart aggregates", Proceedings of the World Forum on Smart Materials and Smart Structures Technology, Chongqing and Nanjing, China.
  4. Liao, W.I., Gu, H., Olmi, C., Song, G., Mo, Y.L. and Loh, C.H. (2008), "Structural health monitoring of a concrete column subjected to shake table excitations using smart aggregates", Proceedings of the Earth and Space, San Diego.
  5. G.S.O. Timothy, P. Gyuhae, M.F. Kevin, and R.F. Charles, (2008), "Development of an extremely compact impedance-based wireless sensing device", Smart Mater. Struct., 17(6).
  6. Song, G., Olmi, C. and Gu, H. (2007), "An overheight vehicle - bridge collision monitoring system using piezoe lectric transducers", Smart Mater. Struct., 16(2), 462-468. https://doi.org/10.1088/0964-1726/16/2/026
  7. Jeongyeup, P., Chintalapudi, K., Govindan, R., Caffrey, J. and Masri, S. (2005), "A wireless sensor network for structural health monitoring: performance and experience", Proceedings of the 2nd IEEE workshop on Embedded Networked Sensors: IEEE Computer Society.
  8. Li, P., Song, G., Zheng, R. and Mo, Y.L. (2009), "Piezo-based wireless sensor networks for civil structural health monitoring", Proceedings of the 1st International Postgraduate Conference on Infrastructure and Environment, Hong Kong.
  9. Olmi, C., Song, G. and Mo, Y.L. (2008), "Development of a portable and low cost power amplifier for piezoceramic actuators", Proceedings of the 4th International Workshop on Advanced Smart Materials and Smart Structures, Tokyo, Japan.
  10. Olmi, C., Song, G. and Mo, Y.L. (2009), "Develop a mini-scale amplifier for piezoceramic active sensing devices for civil structural health monitoring", Proceedings of the 1st International Postgraduate Conference on Infrastructure and Environment, Hong Kong, China.
  11. Mide, "Quick pack hi voltage piezo amplifier", http://www.mide.com/, 2011.
  12. Bosko, G. (2009), "PZT based embedded systems for teaching engineering concepts and wireless structural health monitoring of wind turbine blades", in Cullen College of Engineering Dept. of Mechanical Engineering Houston: University of Houston.

피인용 문헌

  1. Piezoelectric and dielectric properties of PZT–cement–aluminum nano-composites vol.41, pp.1, 2015, https://doi.org/10.1016/j.ceramint.2014.05.136
  2. Influence of aluminium inclusions on dielectric properties of three-phase PZT–cement–aluminium composites vol.26, pp.2, 2014, https://doi.org/10.1680/adcr.12.00059
  3. Delamination monitoring in CFRP laminated plates under noisy conditions using complex-wavelet 2D curvature mode shapes vol.26, pp.10, 2017, https://doi.org/10.1088/1361-665X/aa8316