Remote Impedance-based Loose Bolt Inspection Using a Radio-Frequency Active Sensing Node

  • Park, Seung-Hee (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
  • Yun, Chung-Bang (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
  • Inman, Daniel J. (Center for Intelligent Material Systems and Structures, Virginia Polytechnic Institute and State University)
  • Published : 2007.06.30

Abstract

This paper introduces an active sensing node using radio-frequency (RF) telemetry. This device has brought the traditional impedance-based structural health monitoring (SHM) technique to a new paradigm. The RF active sensing node consists of a miniaturized impedance measuring device (AD5933), a microcontroller (ATmega128L), and a radio frequency (RF) transmitter (XBee). A macro-fiber composite (MFC) patch interrogates a host structure by using a self-sensing technique of the miniaturized impedance measuring device. All the process including structural interrogation, data acquisition, signal processing, and damage diagnostic is being performed at the sensor location by the microcontroller. The RF transmitter is used to communicate the current status of the host structure. The feasibility of the proposed SHM strategy is verified through an experimental study inspecting loose bolts in a bolt-jointed aluminum structure.

Keywords

References

  1. Giurgiutiu, V., and Rogers, C. A. (1997) Electro-mechanical (E/M) Impedance Method for Structural Health Monitoring and Nondestructive Evaluation, International Workshop on Structural Health Monitoring, Stanford University, CA, September 18-20, pp. 433-444
  2. Inman, D. J. and Grisso, B. L. (2006) Towards Autonomous Sensing, Proceedings of SPIE's 13th International Symposium on Smart Structures and Materials, San Diego, CA, February 26 - March 2, pp. 248-254
  3. Mascarenas, D. L., Todd, M. D., Park, G., and Farrar, C. R. (2006) A Miniaturized Electromechanical Impedance-Based Node for the Wireless Interrogation of Structural Health, Proceeding of SPIE's 13th Annual International Symposium on Smart Structures and Materials, 6177
  4. Park, G., Cudney, H., and Inman, D. J. (2000) Impedance-Based Health Monitoring of Civil Structural Components, ASCE Journal of Infrastructure Systems, Vol. 6, No. 4, pp. 153-160 https://doi.org/10.1061/(ASCE)1076-0342(2000)6:4(153)
  5. Park, G., Inman, D. J. (2005) Impedance-Based Structural Health Monitoring, Damage Prognosis for Aerospace, Civil and Mechanical Systems, John Wiley & Sons Ltd, Part II (13), pp. 275-292
  6. Park, G., Kabeya, K., Cudney, H., and Inman, D. J. (1999) Impedance-Based Health Monitoring for Temperature Varying Application, JSME International Journal, Vol. 42, pp. 249-258
  7. Park, G., Sohn, H., Farrar, C. R. and Inman, D. J. (2003) Overview of Piezoelectric Impedance-Based Health Monitoring and Path Forward, The Shock and Vibration Digest, Vol. 35, No. 6, pp. 451-463 https://doi.org/10.1177/05831024030356001
  8. Park, S., Ahmad, S., Yun, C.-B., and Roh, Y. (2006a) Multiple Crack Detection of Concrete Structures Using Impedance-Based Structural Health Monitoring Techniques, Experimental Mechanics, Vol. 46, pp. 609-618 https://doi.org/10.1007/s11340-006-8734-0
  9. Park, S., Inman, D. J., and Yun, C.-B. (2006b) An Outlier Analysis of MFC-Based Impedance Sensing Data for Wireless Structural Health Monitoring of Railroads, Engineering Structures, accepted for publication
  10. Park, S., Roh, Y., Yi, J. H., Yun, C. B, Kwak, H. K., and Lee, S. H. (2004) Impedance-Based Damage Detection for Civil Infrastructures, Smart Structures and Materials, Proc. of SPIE, 5391, pp. 705-716
  11. Park, S., Yun, C.-B., Roh, Y., and Lee, J.-J. (2005) Health Monitoring of Steel Structures Using Impedance of Thickness Modes at PZT Patches, Smart Structures and Systems, Vol. 1, No. 4, pp. 339-353 https://doi.org/10.12989/sss.2005.1.4.339
  12. Simmers Jr., G. E. (2005) Impedance-Based Structural Health Monitoring to Detect Corrosion, Mater's Thesis, Center for Intelligent Material Systems and Structures, Virginia Polytechnic Institute and State University
  13. Tseng, K. K., Soh, C. K., Gupta, A., and Bhalla, S. (2000) Health Monitoring of Civil Infrastructures Using Smart Piezoceramic Transducers, 2nd Int. Conf. on Compo Meth. For Smart Str. And Mat., pp. 153-162
  14. Wilkie, W. K., Bryant, R. G., High, J. W., Fox, R. L., Hellbaum, R. F., Jalink, A., Little, B. D., and Mirick, P. H. (2000) Low-Cost Piezocomposite Actuator for Structural Control Applications, Proc. of 7th SPIE Int'l Symposium on Smart Structures and Materials, Newport Beach, CA, March 5-9
  15. Williams, B. R., Park, G., Inman, D. J. and Wilkie, W. K. (2002) An Overview of Composite Actuators with Piezoceramic Fibers, Proceeding of IMAC XX, Los Angeles, CA, February 4-7
  16. www.analog.com
  17. www.smart-material.com
  18. Zagrai, A. N. and Giurgiutiu, V. (2001) Electro-Mechanical Impedance Method for Crack Detection in Thin Wall Structures, 3rd Int. Workshop of Structural Health Monitoring, Stanford Univ., CA, September 12-14