部分主动约束阻尼梁振动的假设模态法建模

王 淼;孟 光

振动与冲击 ›› 2009, Vol. 28 ›› Issue (4) : 38-41.

PDF(1034 KB)
PDF(1034 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (4) : 38-41.
论文

部分主动约束阻尼梁振动的假设模态法建模

  • 王 淼,孟 光
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vibration modeling of a partially ACLD beam with assumed mode method

  • Wang Miao, Meng Guang
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摘要

摘 要:基于夹层结构的Mead-Markus基于假设使用假设模态法对部分主动约束阻尼覆盖的梁结构进行建模计算,并与有限元结果进行比较。重点研究压电层厚度、阻尼层厚度、ACLD长度和位置对模态损耗因子的影响,研究表明,适当增加压电层厚度,减小阻尼层厚度,增加ACLD长度有利于增强阻尼效果。

Abstract

Abstract:Based on the Mead-Markus assumptions,the assumed mode method(AMM)was used to model a partially ACLD beam.And the validity and effectiveness of AMM were examined by comparing the results with those of FEM.Furthermore,the geometrical effects of a ACLD patfch as ,PZT thickness,VEM thickness,its location and length on matural frequencies and modal loss factors of the beam were also atudied.It seemed that it is useful for damping efffct to increase PZT thickness,reduce VEM thickness and exted the ACLD patch.

关键词

主动约束阻尼 / Mead-Markus模型 / 假设模态法 / 几何效应

Key words

active constrained layer damping(ACLD) / assumed mode method(AMM) / geometrical effects / Mead-Markus model.

引用本文

导出引用
王 淼;孟 光. 部分主动约束阻尼梁振动的假设模态法建模[J]. 振动与冲击, 2009, 28(4): 38-41
Wang Miao;Meng Guang. vibration modeling of a partially ACLD beam with assumed mode method[J]. Journal of Vibration and Shock, 2009, 28(4): 38-41

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