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  • 标题:Improvement Noise Insulation Performance of Polycarbonate Pane using Sandwich Structure
  • 本地全文:下载
  • 作者:Min SHEN ; Kazuteru NAGAMURA ; Noritoshi NAKAGAWA
  • 期刊名称:Journal of System Design and Dynamics
  • 电子版ISSN:1881-3046
  • 出版年度:2012
  • 卷号:6
  • 期号:1
  • 页码:61-72
  • DOI:10.1299/jsdd.6.61
  • 出版社:The Japan Society of Mechanical Engineers
  • 摘要:

    Polycarbonate (PC) laminates offer the possibility of designing strong and light weight panes application in automobile. However, the noise insulation performance of PC pane is worse than glass pane because of its high rate of stiffness to low weight. In this work, a new ultra-thin(less than 10mm) sandwich pane is proposed to obtain high transmission loss(TL). The sandwich structure consists of two thin laminates plates of the same PC material and a thin lightweight damping core bonded between those plates. Then TL is predicted using decoupled equations representing symmetric and anti-symmetric motions for a sandwich PC pane. The effects of various structural and material parameters on noise insulation performance are investigated with numerical examples. Numerical results show that the shear rigidity has evident effect on coincidence frequency and proposed structure has better noise insulation properties than single layer PC pane of equivalent thickness.

  • 关键词:Sound Transmission Loss; Polycarbonate Window Pane; Sandwich Structure; Automobile
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