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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36607完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李志中 | |
| dc.contributor.author | Kun-Huang Lee | en |
| dc.contributor.author | 李昆晃 | zh_TW |
| dc.date.accessioned | 2021-06-13T08:07:36Z | - |
| dc.date.available | 2005-07-26 | |
| dc.date.copyright | 2005-07-26 | |
| dc.date.issued | 2005 | |
| dc.date.submitted | 2005-07-21 | |
| dc.identifier.citation | [1] Shabana, A.A., “Dynamics of Multibody Systems,Cambridge University Press,2nd ed.”, 1988.
[2]Shabana, A. A., “Computational dynamics”, Wiley, 1994 [3]Sunada, W. and Dubowsky , S. , ”The Application of Finite Element Methods to the Dynamic Analysis of Flexible Spatial and Co-planar Linkage Systems” , Jouranl of Mechanical Design , Transactions of the ASME , Vol. 103, pp. 643-651,1981 [4]Dobowsky, S. and Dect, J. F. and Costello, H., “the Dynamic Modeling of Flexible Spatial Machine Systems with Clearance connections”, Journal of Mechanisms, Transmissions, and Automation in Design, Transactions of the ASME, Vol. 109,pp. 87-94,1987 [5]Fallahi, B., “An Enhanced Computational Scheme for The Analysis of Elastic Mechanisms”, Computers & Structures, Vol. 62, pp. 369-372, 1997. [6]Wrigger,P. and Simo, J. C., “A general procedure for the direct computation of turning and bifurcation points”, Int. J. Numer. Meth. Engrg 30,155-176.1990 [7]Holden, J. T. “On the finite deflections of thin beams”, Int. J. Solid structures 8, 1051-1055, 1972. [8]Wang, C.Y., “postbuckling of an externally pressurized ring with a higge, Int. J. Solids Structures 27 , 1287-1293 , 1991. [9]Ting, Edward C. Shih, Chiang; Wang, Yeon-Kang , “Fundamentals of a vector form intrinsic finite element”, Journal of Mechanics, v 20, n 2, June, 2004, p 113-122 [10]Townsend , M. A. and Mansour , W. M. , “A Pendulating Model for Mechanisms With Clearances in the Revolutes ” , Jouranl of Enginnering for Industry , Transactions of the ASME. , Vol. 97 , pp. 345-358,1975 [11]Miedema, B. and Mansour, W. M., “Mechanical Joints With Clearance: A three_Mode Model”, Journal of Enginnering for Industry, Transactions of the ASME. , Vol. 98, pp. 1319-1323, 1976. [12]Earles, S.W.E. and Seneviratne, L. D., “Some Kinematic Effects of Clearances in Revolute Joints of Linkage Mechanisms”, Proceedings of the Seventh World Congress on the Theory of Machines and Mechanisms, Vol. 1, pp. 523-528,1987. [13] Dubowsky , S. and Freudenstein, F. , “Dynamic Analysis of Mechanical Systems with Clearances , part 1:Formation of Dynamic Mode , and part 2 : Dynamic Response “, Journal of Enginnering for Industry , Transactions of the ASME. , Vol. 93 , pp. 305-316 , 1971 [14]Dubowsky, S. and Gardner,T.N. “Dynamic Interations of Link Elasticity and Clearance Connections in Planar Mechanical System”, Journal of Transactions of the ASME. , Vol. 97, pp. 652-661, 1975 [15] Soog, K. and Thompson, B.S., “A Theoretical and Experimental Investigation of the Dynamic Response of a Slider-Crank Mechamism with Radial Clearance in the Gudgron-Pin Joint”, Journal of Mechanical Design, Transactions of the ASME , Vol. 112 , pp. 183-189 , 1990 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36607 | - |
| dc.description.abstract | 機構中所使用的接頭因為加工誤差或熱膨脹等因素產生間隙，間隙會導致接頭在運動的過程中產生分離，衝擊等現象，造成機台壽命降低、振動增加與輸出誤差。本文主旨在於應用向量式有限元素法及彈簧阻尼法(Spring Dashpot Approach)模擬具間隙撓性桿件機構，並探討具間隙撓性連桿機構之動態特性。具間隙撓性連桿在運動的過程中，有穿透，撞擊等現象，而向量式有限元素之優點正在於可以處理桿件運動過程經歷大的幾何變形，如破裂，穿透，撞擊，或非線性的材料性質，因此我們選用向量式有限元素來模擬具間隙之撓性連桿。 | zh_TW |
| dc.description.abstract | Most of the time, inaccurate machining and heat expansion will cause clearance to exist in the joint. The existence of the clearance increases the impact force that the joint has to sustain due to the phenomenon like separation and impact happen in the kinematical process. Those effects will shorten the joint’s life and increase the vibration of the machine, which then causes the error on machine’s output. In this thesis, the dynamic analysis of flexible mechanisms with clearance using vector form intrinsic finite element (VFIFE) method and Spring Dashpot Approach is performed.
We choose VFIFE to analyse flexible machine with clearance because VFIFE is good for handle large deformation. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T08:07:36Z (GMT). No. of bitstreams: 1 ntu-94-R92522625-1.pdf: 1083971 bytes, checksum: 2074ee5d0e29c0030f266501a788347a (MD5) Previous issue date: 2005 | en |
| dc.description.tableofcontents | 中文摘要 i
英文摘要 ii 目錄 iii 圖列 v 表列 viii 第一章 緒論 1 1-1 研究動機 1 1-2 文獻回顧 2 1-3 論文大綱 5 第二章 理論分析 6 2-1 VFIFE之基本假設及離散化 6 2-2 共轉法 7 2-3 平面剛架元的有限元素分析 12 2-3-1 剛體位移與變形位移 12 2-3-2 計算步驟 14 2-3-3 剛架元的節點內力 15 2-2-4 剛架元的節點質量 18 2-4 具鉸接的處理方式 19 2-5 具間隙接頭之處理方式 21 2-6 運動方程式推導 25 2-7 計算程序 26 第三章 程式模擬 28 3-1 具間隙接頭之設定 28 3-2 不同 對模擬結果之影響 30 3-3 接頭之非彈性碰撞及彈性係數之選擇 38 3-4 四連桿模擬 41 3-4-1 間隙值大小對機構之影響 41 3-4-2 撓性桿件對機構之影響 45 3-5 滑塊曲柄機構 46 3-5-1 變形量，座標位置及滑塊速度之模擬 48 第四章 結論 50 4-1 結論 50 4-2 未來研究方向 51 參考文獻 54 | |
| dc.language.iso | zh-TW | |
| dc.subject | 間隙 | zh_TW |
| dc.subject | 向量式有限元素法 | zh_TW |
| dc.subject | 撓性 | zh_TW |
| dc.subject | 連桿機構 | zh_TW |
| dc.subject | Clearance | en |
| dc.subject | Joint | en |
| dc.subject | Flexible link | en |
| dc.subject | VFIFE | en |
| dc.title | 以向量式有限元素法分析具間隙撓性連桿機構 | zh_TW |
| dc.title | Dynamic Analysis of Flexible Mechanisms with Clearance Using Vector Form Intrinsic Finite Element Method | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 93-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 吳東岳 | |
| dc.contributor.oralexamcommittee | 陳復國 | |
| dc.subject.keyword | 向量式有限元素法,撓性,連桿機構,間隙, | zh_TW |
| dc.subject.keyword | VFIFE,Clearance,Flexible link,Joint, | en |
| dc.relation.page | 55 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2005-07-21 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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