Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Generation and Detection of Torsional Waves in a Rotating Shaft Using a Magnetostrictive Patch Array

자기변형 패치 배열을 이용한 회전축에서의 비틀림파 발생 및 감지

  • 조승현 (서울대학교 대학원 기계항공공학부) ;
  • 한순우 (서울대학교 정밀기계설계공동연구소) ;
  • 박찬일 (서울대학교 대학원 기계항공공학부) ;
  • 김윤영 (서울대학교 기계항공공학부)
  • Published : 2006.03.01
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Abstract

A new magnetostrictive patch array transducer for the generation and detection of torsional waves is developed fur the on-line health monitoring of rotating shafts. Even though the torsional wave is useful in nondestructive evaluation due to its non-dispersive property, a transducer generating torsional waves in rotating shafts has not been developed so far. In this research, a torsional wave transducer using the magnetostrictive effect is newly developed. By bonding an away of magnetostrictive rectangular patches on the outer surface of the shaft at an oblique angle of $45^{\circ}$ and encircling the array by a solenoid coil, we have successfully generated and measured torsional waves by the developed transducer. Several experiments were carried out to check the transducer performance.

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References

  1. Ha, K. H., Hong, J. P., Kim, G. T. , Chang, K.C. and Lee, J.,2000, 'Orbital Analysis of Rotor Due to Electromagnetic Force for Switched Reluctance Motor,' IEEE Transactions on Magnetics, Vol. 36, No. 4, pp. 1407-1411 https://doi.org/10.1109/20.877702
  2. Areny, R. P. and Webster, J. G., 2001, Sensors and Signal Conditioning, Wiley-Inter Science, New York
  3. Goodwin, M. J., 1989, Dynamics of Rotor-Bearing Systems, Unwin Hyman Ltd., London
  4. Bucher, I. and Ewins, D. J., 2001, 'Modal Analysis and Testing of Rotating Structures,' Phil. Trans. R. Soc. Lnd., Vol. A 359, pp. 61-96 https://doi.org/10.1098/rsta.2000.0714
  5. Rothberg, S. and Bell, J., 2004, 'On the Application of Laser Vibrometry to Translational and Rotational Vibration Measurements on Rotating Shafts,' Measurement, Vol. 35, No. 2, pp. 201-210 https://doi.org/10.1016/j.measurement.2003.04.001
  6. Jiles, D. C., 1995, 'Theory of the MagnetoMechanical Effect,' J. Phys. D: Appl. Phys.,Vol. 28, pp 1537-1546 https://doi.org/10.1088/0022-3727/28/8/001
  7. Kim, Y. Y., Cho, S. H. and Lee, H. C., 2003, 'Application of Magnetomechanical Sensor in Modal Testing,' J. Sound and Vibration, Vol. 268, No. 4, pp. 799-808 https://doi.org/10.1016/S0022-460X(03)00476-0
  8. Kim, Y. Y., Han, S. W. and Lee, H. C., 2002, 'Non-Contact Damage Detection of a Rotating Shaft by Using the Magnetostrictive Effect,' Trans. of the KSME (A), Vol. 26, No.8, pp. 1599-1607 https://doi.org/10.3795/KSME-A.2002.26.8.1599
  9. Graff, K. F, 1975, Wave Motion in Elastic Solids, Ohio State Univ. Press, Columbus
  10. Kwun, H. and Bartels, K. A., 1998, 'MagnetoStrictive Sensor Technology and Its Applications,' Ultrasonics, Vol. 36, pp. 171 -178 https://doi.org/10.1016/S0041-624X(97)00043-7
  11. Kwun, H., 2002, 'Method and Apparatus Generating and Detecting Torsional Wave Inspection of Pipes or Tubes,' United States Patent, Patent No: ？US 6429650 Bl
  12. Kim, Y. Y., Park, C. I., Cho, S. H. and Han, S. W., 2005, 'Torsional Wave Experiments with a New Magnetostrictive Transducer Configuration,' J. Acoust. Soc. Am., Vol. 117, No. 6, pp. 3459-3468 https://doi.org/10.1121/1.1904304
  13. Rose, J. L., 1999, Ultrasonic Waves in Solid Media, Cambridge Univ. Press, New York
  14. Rose, J. L., Pelts, S. P. and Quarry, M. J., 1998, 'A Comb Transducer Model for Guided Wave NDE,' Ultrasonics, Vol. 36, pp. 163-169 https://doi.org/10.1016/S0041-624X(97)00042-5
  15. Kim, I. K. and Kim, Y. Y., 2005, 'Wireless Frequency-Tuned Generation and Measurement of Torsional Waves Using Magnetostrictive Nickel Gratings in Cylinders,' Sensors and Actuators A, In Press https://doi.org/10.1016/j.sna.2005.09.027
  16. www.cartech.com
  17. Hong, J. C. and Kim, Y. Y., 2004, 'Determination of the Optimal Gabor Wavelet Shape for Best TimeFrequency Localization Using the Entropy Concept,' Experimental Mechanics, Vol. 44, pp. 387-395 https://doi.org/10.1007/BF02428092