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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Control of Membrane with Tension Gradient Using Multiple Dynamic Absorber

다중 동흡진기를 이용한 장력구배를 갖는 박판의 진동 제어

  • 박종현 (LG전자(주) DD사업본부 OLED사업담당 개발 1Gr) ;
  • 김성대 (한국과학기술원 대학원 기계공학과) ;
  • 김원진 (계명대학교 기계자동차공학부)
  • Published : 2005.05.01
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Abstract

In this work, the multiple dynamic absorber( MDA ) is introduced to reduce several vibration modes of shadow mask simultaneously and its design method is developed from the theory of the simple dynamic absorber. When designing the dynamic absorber, there are three significant design parameters such as mass, damping ratio and tuning frequency. Therefore the sensitivity analysis for those parameters has been executed in order to find out the design criteria of multiple dynamic absorber using the finite element model of shadow mask. The multiple dynamic absorber(MDA) designed by the proposed method is tested theoretically and experimentally to estimate the efficiency of vibration reduction. From the results, it is verified that the method is feasible to apply the system having the multiple nitration modes and more efficient than the thin wire-type damper used commercially to reduce the vibration of shadow mask.

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References

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