한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제19권7호
  • /
  • Pages.98-105
  • /
  • 2020
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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구조 재배치를 이용한 탄성체 진동 저감

Reduction of Vibration for an Elastic Structure by means of a Relocation of Part

  • 김기만 (국립금오공과대학교 기계시스템공학과) ;
  • 최성대 (국립금오공과대학교 기계시스템공학과)
  • Kim, Giman (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Choi, Seongdae (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • 투고 : 2020.05.14
  • 심사 : 2020.06.19
  • 발행 : 2020.07.31
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초록

This study deals with the passive control of the dynamic characteristics of a theoretical model which is a string with fixed ends and loaded by two point masses - a main mass (Mo) and a secondary mass (Ms). It has been controlled passively by means of a relocation of a secondary mass. A main mass placed on the string is considered as a vibrating receiver which be forced to vibrate by a vibrating source being positioned on the string. By analyzing the motion of a string, the equation of motion for a string was derived by using a method of variation of parameters. To define the optimal conditions for the vibration reduction, the governing equation, which denotes the dynamic response of a string was derived in the closed form and then evaluated numerically. The possibility of reduction of an amplitude and a power being transmitted to a main mass were found to depend on the location and the magnitude of a secondary mass as well as the range of a forcing frequency.

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참고문헌

  1. Pan, J. and Hansen, C. H., "Active control of total vibratory power flow in a beam. I : Physical System Analysis," The Journal of the Acoustical Society of America, Vol. 89, No. 1, pp. 200-209, 1991. https://doi.org/10.1121/1.400502
  2. Scchwenk, A. E., Sommerfeldt, S. D., and Hayek, S. I., "Adaptive control of structural intensity associated with bending waves in a beam," The Journal of the Acoustical Society of America, Vol. 96, pp. 2826, 1994. https://doi.org/10.1121/1.411288
  3. Kim, G. M., "Active control of vibrational intensity at a reference point in an infinite elastic plate," Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 11. No. 4, pp. 22-30, 2001.
  4. Kim, G. M. and Choi, S. D., "The Design Parameter analysis of a Dynamic Absorber for the Control of a Machine Body Vibration," Journal of the KSMTE, Vol. 18, No. 1, pp. 1-8, 2019.
  5. Kim, G. M. and Choi, S. D., "Active control of dynamic response for a discrete system in an elastic structure," Advanced Materials Research, Vol. 505, pp. 512-516, 2012. https://doi.org/10.4028/www.scientific.net/AMR.505.512
  6. Son, I. S., Kim, C. H., Bae, S. H., Lee and J. Y., "Rescue Lift Development Using Structural Analysis", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14 No. 1, pp. 111-116, 2015. https://doi.org/10.14775/ksmpe.2015.14.1.111
  7. Yi, C. S., Kang, D. S., Jeong E. I., Kim H. K., and Baek, I. C., "Structure Analysis on the Material Supply Device for Small Scale Machine Tool," Proc. of the KSMPE Autumn Conference, pp. 126, 2018.
  8. Kim, G. M. and Choi, S. D., "Analysis of the Reduction of the Dynamic Response for the CNC 5 Axles Machining Center," The Korean Society of Manufacturing Process Engineers, Vol. 9, No. 5, pp. 83-89, 2010.
  9. Moon, Y.-M. and Kota, S., "Design of Reconfigurable Machine Tools," Journal of Manufacturing Science and Engineering. Vol. 124, No. 2, pp. 480-483, 2002. https://doi.org/10.1115/1.1452748