Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Design of a Dynamic Absorber Using Permanent Magnet Force

영구자석의 자력을 이용한 동흡진기의 설계

  • 손솔산 (계명대학교 대학원 기계공학과) ;
  • 김원진 (계명대학교 기계자동차공학과)
  • Received : 2010.09.29
  • Accepted : 2010.11.01
  • Published : 2010.11.20
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Abstract

In this work, a dynamic absorber with a plate-type cantilever using magnetic force is proposed to reduce the vibration of a compressor directly. The dynamic absorber using magnetic force has some advantages of easily tuning the control frequency by adjusting the magnet spacing and obtaining wider control frequency band. The dynamic absorber is designed theoretically and tested experimentally to estimate the control frequency band. When the compressor is equipped with the dynamic absorber, the vibration of compressor and the noise level of refrigerator are reduced by 30 % and 3.2 dB respectively.

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References

  1. Ahn, C. W., Choi, S. C. and Kim, D. Y., 1997, “A Study on the Effects of Dual Dynamic Vibration Absorber for Damped Vibration System,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 7, No. 6, pp. 1039-1048.
  2. Bea, C. H., Cho, C. W., Yang, K. H. and Park, Y. P., 2001, “Vibration Reduction By Dynamic Absorber of Vertical Pump System,” Proceedings of the KSNVE Annual Autumn Conference, pp. 628-632.
  3. Lee, H. S., 2000, “Design of Dynamic Absorber to Improve Shock Performance of Actuator Arm in a Hard Disk Drive,” Proceedings of the KSNVE Annual Spring Conference, pp. 468-471.
  4. Kim, M. C., Lee, B. Y. and Kim, W. J., 2005, “Optimal Design of a Dynamic Absorber for the Large-size Pressure Vessel of the Petrochemical Plant,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 5, pp. 612-619. https://doi.org/10.5050/KSNVN.2005.15.5.612
  5. Cho, U. R., Lim, S. H., Park, Y. P., Park, N. C., Park, K. S., Soh, W. Y. and Kim, K. T., 2009, “Vibration Reduction in Optimal Disc Drive Using L-shape Type Dynamic Vibration Absorber,” Proceedings of the KSNVE Annual Spring Conference, pp. 334-336.
  6. No, T. H., 2006, Magnetic Materials, Dooyangsa, pp. 47-59.
  7. Kenneth, G. M., 1995, Vibration Testing, Jhon Wiley & Sons, NewYork.
  8. Park, J. H., Kim, S. D. and Kim, W. J., 2005, “Vibration Control of Membrane with Tension Gradient Using Multiple Dynamic Absorber,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 5, pp. 595-603. https://doi.org/10.5050/KSNVN.2005.15.5.595
  9. KSC9305, 1999, 9.2.14, Refrigerator-freezers and Freezers.