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具有主、被动约束层阻尼的拉压型结构研究

On Active-passive Constrained Layer Damping in Extension and Compression Structures
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摘要 粘弹性材料已广泛用于阻尼结构的弯曲振动。具有主动与被动相结合的约束层 阻尼技术研究目前也多集中于梁、板等结构的弯曲振动,而主、被动约束层阻尼拉压 型结构则很少研究。本文给出了一种主、被动约束层阻尼拉压型结构模型,推导了一 些数学表达式,给出了优化设计方法及分析结果。 Viscoelastic materials are used extensively to damp fiexural vibrations of metallic structures; nowadays a lot of research is focused on controlling fiexural vibrations of metallic structures. But active-passive constrained layer damping treatment, used in damping extend-compressed vibrations of structures is less considered. An analysis model of active-passive constrained layer treatment used in attenuating extendcompressed vibrations of structures is presented; structural complex loss factor and the optimized cover length formulas are given out. Finally, a numeric example is discussed. The numeric analysis results show that extend-compressed damping treatment is very effective in vibration control.
作者 郝联盈
出处 《机械科学与技术》 CSCD 北大核心 2000年第z1期54-55,共2页 Mechanical Science and Technology for Aerospace Engineering
关键词 主、被动约束层 振动控制 阻尼 Active-passive Extend-compressed damping treatment Vibration control
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参考文献2

  • 1[1]Ptunkett R, et al. Length Optimization for Constrained Viscoelastic Layer Damping[J]. J. A. S.A. 1970(48) :150~160
  • 2[2]Baz A, et al. Actively Controlled Constrained Layer Damping[Jl. Sound and Vibration Magazine, 28(3):18~21

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