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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Experimental Verification of Analysis Model of the Shadow Mask with Damping Wires

댐핑 와이어를 갖는 새도우 마스크의 해석모델에 대한 실험적 검증

  • 김성대 (한국과학기술원 대학원 기계공학과) ;
  • 김원진 (계명대학교 기계·자동차공학부) ;
  • 이종원 (한국과학기술원 기계공학과)
  • Published : 2002.09.01
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Abstract

Nonlinear vibration of the CRT shadow mask with impact damping wires is analyzed in consideration of the mask tension distribution and the effect of wire impact damping. A reduced order FEM model of the shadow mask is obtained from dynamic condensation of the mass and stiffness matrices, and damping wire is modeled using the lumped parameter method to effectively describe its contact interactions with the shadow mask. The nonlinear contact-impact model is composed of spring and damper elements, of which parameters are determined from the Hertzian contact theory and the restitution coefficient, respectively. The analysis model of the shadow mask with damping wires is experimentally verified through impact tests of shadow masks performed in a vacuum chamber.

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References

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