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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/2841

Title: 制振材を積層した自動車車体用パネルの減衰特性の有限要素解析 : 第1報, ビードパネルの減衰特性の実験結果と数値計算結果の比較
Other Titles: Finite Element Analysis for Vibration Properties of Panels in Car Bodies Having Viscoelastic Damping Layer : 1st Report, Comparison of Damping Properties between Experimental Results and Numerical Results for Stiffened Panel
Authors: 山口, 誉夫
黒沢, 良夫
松村, 修二
野村, 章
Keywords: Damping
Damping Material
Automobile
Noise
Sound-Proof Structure
Computer Aided Analysis
Issue Date: 25-Feb-2003
Publisher: 日本機械学会
Citation: 日本機械学會論文集 C編. 69(678), 297-303 (2003)
Abstract: This paper describes vibration phenomena for stiffened elastic panels having viscoelastic damping layer. The panels are stiffened by beads. The laminated panels are modeled using three-dimensional finite elements in consideration with complex modulus of elasticity. Further, applying asymototic method to the discreted equations of motion, explicit expressions of modal loss factors for the laminates are derived. Consequently, the expressions have similar form to Modal Strain Energy Method, which is proposed by Jonson. Numerical code is developed related to the expressions. Vibration damping properties of the bead panels, which are calculated by the code, is consistent with experimental results. Temperature dependence of the damping properties by FEM also agreed well with the experiments. These investigations reveal that modal damping decreases due to beads of the panels.
URI: http://hdl.handle.net/10087/2841
ISSN: 0387-5024
Appears in Collections:学術雑誌論文

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