Improvement Noise Insulation Performance of Polycarbonate Pane using Sandwich Structure

スポンサーリンク

概要

• 論文の詳細を見る

• 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.

著者

• Nakagawa Noritoshi

  Faculty Of Engineering Hiroshima University

• NAGAMURA Kazuteru

  Graduate School of Engineering, Hiroshima University

• SHEN Min

  Graduate School of Engineering, Hiroshima University

• OKAMURA Masaharu

  DaikyoNishikawa Coporation

関連論文

• Analysis of Transient Sound Energy Flow in Impact Noise
• A Study of the Impact Noise of Machines (2nd Report, Formative Process of Sound Pressure) : Series C : Vibration, Control Engineering, Engineering for Industry
• Behavior of Impact Waves at the Interface of an Elastic-viscoelastic Bar
• Improvement Noise Insulation Performance of Polycarbonate Pane using Sandwich Structure

スポンサーリンク