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

  • 제12권8호
  • /
  • Pages.639-647
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  • 2002
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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와이어 충돌감쇠를 갖는 다공성 박판의 비선형 진동 해석

Nonlinear Vibration Analysis of Thin Perforated Plate with Wire Impact Damping

  • 김성대 (한국과학기술원 대학원 기계공학과) ;
  • 김원진 (계명대학교 기계·자동차공학부) ;
  • 이부윤 (계명대학교 기계·자동차공학부) ;
  • 이종원 (한국과학기술원 기계공학과)
  • 발행 : 2002.08.01
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초록

The nonlinear vibration of the thin perforated plate is analyzed in consideration of the V-shaped tension distribution and the effect of wire impact damping. The reduced order FEM model of the tension plate is obtained from dynamic condensation for the mass and stiffness matrices. Tension wire is modeled using the lumped parameter method to effectively describe its contact interactions with the plate. 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. From the evaluation of the computational accuracy and computation time for the deduced impact stiffness and damping coefficient, we determined proper values for the simulation works, accounting for the computational accuracy as well as the computational efficiency. Finally we discussed the results of nonlinear nitration analysis for variations of their design parameters.

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참고문헌

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