| 研究生: |
林育正 Yu-Cheng Lin |
|---|---|
| 論文名稱: |
含多種形狀孔洞的阻尼板之振動分析 vibration analysis of damped plate with multi-shaped holes |
| 指導教授: |
王有任
Yu-Zane Wang |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 機械工程學系 Department of Mechanical Engineering |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 72 |
| 中文關鍵詞: | 總勢能 、各種形狀 、多孔 、板振動 、阻尼薄板 、孔板 |
| 外文關鍵詞: | vibration, damped plate, holes, hamilton, shaped |
| 相關次數: | 點閱:10 下載:0 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
摘 要
本篇論文主要在探討,一薄板上含有多個不同形狀之孔洞,並考慮阻尼效應,對於此板作振動分析。
本文應用ectoplasm概念貼一層很薄的薄膜,以變厚度模擬孔洞部分,如此一來可視為處理板為變厚度的振動問題;作法概要為將模態函數以傅利葉雙重級數展開,以形狀函數修正方板使其成為孔板,推導出此孔板的動能,勢能及外力所作的功,代入Hamilton’s Function 由Hamilton’s 原理變分Hamilton’s Function為零的觀念,變分後處理,可得此板振動之統御方程式,此統御方程式可由Frazer, Duncan, and Collar 的變換矩陣法解出,可得振動頻率、模態與振動之響應。
本文探討了許多不同形狀孔洞、不同孔洞個數與不同孔洞大小等,對於孔板自然頻率的影響,並考慮阻尼效應對於不同的孔板作響應與頻譜分析,以了解孔板的振動特性。
vibration analysis of damped plate with multi-shaped holes
參 考 文 獻
[1]. T. KUMAI 1952 Proceeding of second Japanese national congress of applied mechanics,339-342. "The flexural vibrations of square plate with a central hole".
[2]. S. TAKAHASI 1958 Japanese society of mechanical engineers Bulletin 1,380-385. "Vibration of rectangular plates with circular holes".
[3]. C. V. JOGA RAO and G. PICKETT 1961 Journal of the Aeronautical Society of India 13,83-88. "Vibrations of plates of irregular shapes and plates with holes".
[4]. G. AKSU and R.ALI 1976 Journal of Sound and Vibrations 44,147-158. "Determination of dynamic characteristics of rectangular plates with cutouts using a finite difference formulation".
[5]. R. ALI and S. J. ATWAL 1980 Computers and Structures
12, 819-823. " Prediction of natural frequencies of vibration of rectangular plates with rectangular cutouts".
[6]. P. A. A. LAURA, P. A. LAURA and V. H. CORTINEZ 1986 Journal of Sound and Vibration 106, 187-192. " A note on transverse vibrations of a rectangular plate with a free ,rectangular corner cut-out".
[7]. 陳志良1994年 "具阻尼薄板之振動分析"
[8]. O. BESLIN, J. L. GUYADER 1995 Journal of Sound and Vibration 191, 935-954. " The use of an “ECTOPLASM” to free vibration of plates with cut-outs".
[9]. P. A. A. LAURA,R. H. GUTIERREZ and R. E. ROSSI
1996 Journal of Sound and Vibration 201, 636-640. "Vibrations of rectangular membranes and plates with rectangular holes with fixed boundaries".
[10]. K. SIVAKUMAR,N. G. R. IYENGAR 1998 Journal of Sound and Vibration 221, 443-470. "Free vibration of laminated composite plates with cutout".
[11]. M. HUANG 1999 Journal of Sound and Vibration 226,
769-786. "Free vibration analysis of rectangular plates
with variously-shaped holes".
[12]. H. A. LARRONDO and R. E. ROSSI 2000 Journal of Sound and Vibration 244,738-745. "Vibration of simply supported rectangular plates with varying thickness and same aspect ratio cutouts".
[13]. 陳建勳 2001年 "有洞薄方板之動態分析與激振後之聲
場"
[14]. R. A. Frazer, W. J. Duncan, and A. R. Collar, p.289 "Elementary Matries".
[15]. 王柏村 1996年出版 "振動學" 全華書局