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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 盧中仁(Chung-Jen Lu) | |
| dc.contributor.author | Jia-Wei Chang | en |
| dc.contributor.author | 張家瑋 | zh_TW |
| dc.date.accessioned | 2021-06-08T04:15:27Z | - |
| dc.date.copyright | 2010-08-11 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-08-06 | |
| dc.identifier.citation | 參考文獻
[1] J. S. Go, Y. H. Cho, Kwak and Byung Man, Acceleration microswitches with adjustable snapping threshold, Proceedings of International Conference on Solid-State Sensors and Actuators 2 (1995), pp. 691-694. [2] J. S. Han, J. S. Go, Y. T. Kim, Kwak and Byung Man, Parametric study and optimization of a micro-optical switch with a laterally driven electromagnetic microactuator, Journal of Micromechanics and Microengineering 12 (6) (2002), pp. 939-947. [3] 陳聖傑，雙穏態彈跳簧片之位能動能轉換機制於致動和發電系統之特性研究探討，台灣大學碩士論文，2004 [4] 黃瀅瑛，分段連續線性化降階演算法在非線性雙穩態結構之應用，台灣大學碩士論文，2007 [5] S.P. Timoshenko, Theory of Elastic Stability (first ed.), McGraw-Hill Book Co. Inc., 1936 [6] Y. C. Fung and A. KaPlan, Buckling of Low Arches or Curved Beams of Small Curvature, National Advisory Committee for Aeronautics, Washington (1952). [7] A. Gjelsvik and S. R. Bonder, The Energy Criterion and Snap Buckling of Arches, Journal of Engineering Mechanics Division 88 (1962), pp. 87-134. [8] E. T. Onat and L. S. Shu, Finite Deformation of a Rigid Perfectly Plastic Arch, ASME Journal of Applied Mechanics 29 (1962), pp. 549-553. [9] C. S. Hsu, The Effects of Various Parameters on the Dynamic stability of a Shallow Arch, ASME Journal of Applied Mechanics 89 (E) (1967), pp. 349 -358. [10] C. S. Hsu, Stability of Shal1ow Arch Against Snap Through Under Timewise Step Loads, ASME Journal of Applied Mechanics 90 (E) (1968), pp. 31-39. [11] C. S. Hsu, C. T. Kuo and S. S. Lee, On the Final State of shallow Arches On Elastic Foundations Subjected to Dynamical Loads, ASME Journal of Applied Mechanics (1968), pp.713 -723. [12] G. J. Simitses, An Introduction to the Elastic Stability of Structures, Prelltice-Hall Inc., 1967. [13] E.R. Johnson, R.H. Plaut and C.C. Deel II, Load-frequency relationships for shallow elastic structures. In: M. Petyt, Editor, Recent Advances in Structural Dynamics, Proceedings of an International Conference, University of Southampton (1980), pp. 611–620. [14] E.R. Johnson and R.H. Plaut, Load-frequency relationships for shallow elastic arches, Virginia Polytechnic Institute and State University, College of Engineering Technical Report VPI-E-80-4 (1980). [15] R.H. Plaut, E.R. Johnson, The effects of initial thrust and elastic foundation on the vibration frequencies of a shallow arch, Journal of Sound and Vibration, Volume 78, Issue 4, 22 October 1981, Pages 565-571 [16] 楊永斌，曲樑之穩定問題，行政院國家科學委員會科學技術資料中心 RA78-2773 (1988). [17] 李森墉，車輛煞車系統的分析研究（三）--子計畫二：鼓式煞車器之煞車臂的振動、壓力分布及穩定分析，行政院國家科學委員會科學技術資料中心 PA8602-2388 (1997). [18] 林水木，非圓形Timoshenko曲樑具彈性拘束之平面動態分析，行政院國家科學委員會科學技術資料中心 PA8804-0248 (1998). [19] J. S. Chen and J. S.Lin, Exact Critical Loads for a Pinned Half-Sine Arch under End Couples, ASME Journal of Applied Mechanics 72 (2005), pp.147-148. [20] 謝錚玟，曲樑承受對稱集中力矩的穩態分析，台灣大學碩士論文，2004 [21] 李志章，拱形樑於端點受力矩時之折斷式挫曲理論與實驗，台灣大學碩士論文，2007 [22] 盧南佑，受拘束拱梁在集中力矩作用下之穩定性分析，台灣大學碩士論文，2009. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22318 | - |
| dc.description.abstract | 拱梁在工程上有許多實際應用，然而對受拘束面約束拱梁受力後的行為尚未有完整的研究。本文利用有限元素法分析受拘束拱梁在集中力矩作用下的平衡解，接著由系統在平衡位置上的特徵值判別平衡解的穩定性。拱梁因其特有的挫屈行為，加上拘束面的限制，使得負載-軸力曲線有複雜的分歧現象。為了確認有限元素法結果的正確性，另以模態展開法分析並相比較。我們發覺，模態展開法所得的資料對於有限元素分析結果的完整性極有助益。我們討論了拱梁初始高度、力矩作用點、力矩大小對拱梁行為的影響。最後架設實驗驗證所得結果的正確。 | zh_TW |
| dc.description.abstract | Arches have many applications in different engineering fields and have been studied thoroughly complete. However, the behavior of an arch with a constraint plane is not well understood. This thesis employs the finite element method (FEM) to study the behavior of a pinned half-sine arch together with a constraint plane under a concentrated moment. Equilibrium positions and the associated stability of the arch under different conditions are investigated thoroughly. Due to the snap-through property and the appearance of the constraint plane, the load-axial force curve of the arch is quite complex and exhibits bifurcation phenomena. To confirm the results, the results of the FEM are compared with those of the modal analysis. We found that the results of the modal analysis provide useful information for determining the equilibrium positions of the arch using the FEM. The variation of the equilibrium positions with the applied load and values of system parameters are examined in detail. Finally, experimental apparatus is set up to validate the theoretical results. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T04:15:27Z (GMT). No. of bitstreams: 1 ntu-99-R97522528-1.pdf: 948969 bytes, checksum: 0ee51eb933b04ccd030deb0a5da81992 (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | 目 錄
口試委員審定書(於紙本上) I 致謝 II 摘要 III Abstract IV 第一章 導論 1 第二章 理論分析 3 2.1 運動方程式 3 2.2 無拘束平面拱梁 5 2.3 有拘束平面拱梁 8 第三章 有限元素分析 14 3.1 挫屈分析法 14 3.2 無拘束平面限制拱梁挫屈的有限元素分析 17 3.2.1 無挫屈 (ｈ=2.89 ) 18 3.2.2 有挫屈 (ｈ=14.43 ) 22 3.3 有拘束平面限制拱梁的有限元素分析 25 3.4 穩定性分析 27 第四章 實驗分析 29 4.1 實驗設備 29 4.2 實驗方法 31 第五章 結果討論 35 5.1 無挫屈 35 5.2 有挫屈 38 第六章 結論 53 附錄一 55 附錄二 56 參考文獻 58 | |
| dc.language.iso | zh-TW | |
| dc.subject | 受拘束穩定性 | zh_TW |
| dc.subject | 挫屈 | zh_TW |
| dc.subject | 拱梁 | zh_TW |
| dc.subject | 雙態致動器 | zh_TW |
| dc.subject | 有限元素法 | zh_TW |
| dc.subject | arch | en |
| dc.subject | bi-stable actuator | en |
| dc.subject | FEM | en |
| dc.subject | snap-through | en |
| dc.subject | constrained stability | en |
| dc.title | 利用有限元素分析受拘束拱梁在集中力矩作用下之穩定性 | zh_TW |
| dc.title | Stability Analysis of a Constrained Arch under Concentrated Moments by FEM | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 伍次寅,楊哲化 | |
| dc.subject.keyword | 拱梁,挫屈,受拘束穩定性,雙態致動器,有限元素法, | zh_TW |
| dc.subject.keyword | arch,snap-through,constrained stability,bi-stable actuator,FEM, | en |
| dc.relation.page | 60 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2010-08-08 | |
| 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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