請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60392
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 洪振發(Chen-Far Hung) | |
dc.contributor.author | Tzu-Hao Wang | en |
dc.contributor.author | 王子豪 | zh_TW |
dc.date.accessioned | 2021-06-16T10:17:03Z | - |
dc.date.available | 2015-08-26 | |
dc.date.copyright | 2013-08-26 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-08-17 | |
dc.identifier.citation | [1] Hollyerand , R.S., 1959, Direct Shock-Wave Damage to Merchant Ships from Noncontact Under Water Explosions, SNAME, pp.773-784.
[2] Keil, A.H., 1961,The Response of Ship to Underwater Explosions, SNAME, pp. 366-410. [3] Taylor, G., 1963, The pressure and impulse of submarine explosion waves on plates. In: Batchelor G, editor. The scientific papers of Sir Geoffrey Ingram Taylor. Aerodynamics and the mechanics of projectiles and explosions, vol. III. Cambridge, UK: Cambridge University Press; p. 287–303. [4] Ramajeyathilagam, K; Vendhan , C.P.; Rao, V.B., 2000, Non-Linear Transient Dynamic Response of Rectangular Plates Under Shock Loading, International Journal of Impact Engineering, Vol.24, pp. 999 –1015 (2000). [5] Kambouchev , N; Noels, L; Radovitzky, R., 2006, Nonlinear compressibility effects in fluid–structure interaction and their implications on the air–blast loading of structures. J App Phys 2006;100 (063519):1–11. [6] Dawson, M.A., 2009, Composite plates with a layer of fluid-filled, reticulated foam for blast protection of infrastructure, International Journal of Impact Engineering , 36 (2009) 1288–1295. [7] Xue, Zhenyu; Hutchinson, John W., 2004, A comparative study of impulse-resistant matal sandwich plates. International Journal of Impact Engineering . Volume 30,Issue 10, 1283-1305. [8] 余孟泉,1998,船體受水下爆震衝擊之結構動態反應研究,臺灣大學造船及海洋工程學研究所碩士論文。 [9] 呂岳峰,2000,水下爆震三維船體顫震分析,臺灣大學造船及海洋工程學研究所碩士論文。 [10] 徐培譽,2004,水下爆震對結構之衝擊,臺灣大學造船及海洋工程學研究所博士論文 [11] 梁卓中、戴毓修、劉子豪,2005,炸藥水下爆炸效應之研究,中國造船暨輪機工程學刊,,第二十四卷,第一期,第39-57頁。 [12] Cowper, G.R. and P.S. Symonds, 1957, “Strain Hardening and Strain Rate Effects in the Impact Loading of cantilever Beams,” Brown University Division of Applied Mathematics Report. No 28. [13] Jones, N. ,1989, Structural Impact, Cambridge University Press. [14] 鄭貴華,2007,金屬三明治結構之水下爆震,臺灣大學工程科學及海洋工程研究所碩士論文。 [15] 林邦俊,2009,水下爆炸對結構之爆震反應,臺灣大學工程科學及海洋工程研究所博士論文 [16] Cole, R.H., 1948, Underwater Explosions, Princeton University Press, Princeton, N.J.. [17] 趙海鷗,2003,LS-DYNA動力分析指南,兵器工業出版社,北京 [18] Ramajeyathilagam, K., Vendhan, C.P., 2004, Deformation and rupture of thin rectangular plates subjected to underwater shock, International Journal of Impact Engineering, Vol.30, pp.699-719. [19] Dobratz, B.M., Crawford, P.C., 1985, LLNL Explosives Handbook. Lawrence Livermore National Laboratory. [20] Matuska D.A., 1984, HULL User’s Manual.AFATL-TR-84-59.June 1984. [21] 洪振發,2003,船艦在爆震力下之結構動態反應與裝備防震策略[結構動態反應],USDDC-221-T753。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60392 | - |
dc.description.abstract | 本文探討有限元素分析水下爆炸對結構爆震反應的特性及其應用,分成三個部分,先對水下爆炸的水域網格大小及排列對爆震波傳遞分析結果之影響進行比較研究,以確認計算精確度可接受之網格尺寸。其次針對Ramajeyathilagam & Vendhan[2004]以空氣為背壓之嵌板之近距離爆炸試驗模型作為比較基礎進行有限元素分析,探討完整的水域與板殼模型及簡化四邊固定的板殼模型之分析結果與文獻試驗相同爆炸條件的試驗結果比較,探討流固耦合的影響及本文分析方式的正確性。最後分析一艦艇在水下爆炸下,船舯之結構的衝擊反應。炸藥位置在不同角度及距離下,考慮相同炸藥量與相同的龍骨爆震因子但不同入射角度,進行船體遭受到水下爆炸之爆震波衝擊的動態分析,比較其動態反應之差異。結果顯示,相同爆震因子,不同的爆炸位置,不同的爆炸方向,對結構的衝擊反應均有明顯差異。 | zh_TW |
dc.description.abstract | The study aims to explore the characteristics of the dynamic response of structures subjected to UNDEX and its application by finite element analysis.The study contains three parts.First, the study conducted basic research on the FE models for analysis of underwater explosion and the effects of mesh at water domain on the results of shock pressure distribution. Second, a plate model adopted from the experiment model of Ramajeyathilagam & Vendhan [2004] with water domain were established. The analysis results were compared with experiment results.The results from FE-models and experiment are compared to verify the accuracy of the FE-model and the influence caused by fluid-structure interference. Finally, the dynamic responses of mid-ship structure subjected to underwater explosion was investigated.The cases with the same mass of TNT but under different keel shock factor and detonation positions are compared. Results show that the impact responses of ship structure subjected to UNDEX with the same shock factor but different detonation position and detonation direction has significant difference in acceleration and stress of structural members in different cases. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T10:17:03Z (GMT). No. of bitstreams: 1 ntu-102-R00525015-1.pdf: 6253725 bytes, checksum: c366acb82d3545292f5baea74df537dc (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 致謝 i
摘要 iii Abstract v 目錄 vii 圖目錄 xi 表目錄 xv 第一章 緒論 1 1.1研究動機與目的 1 1.2 文獻回顧 2 1.3本文內容 4 第二章水下爆震相關理論 5 2.1 基本力學理論 5 2.1.1材料力學特性 5 2.1.2 von-Mises降伏準則 6 2.1.3應變率對材料影響 6 2.2水下爆炸相關現象 8 2.2.1水下爆震波特性 9 2.2.2最大半徑與周期 11 2.3有限元素法分析水下爆炸 13 2.3.1 水下爆炸對結構衝擊波壓簡易估算(LOAD_SSA) 13 2.4流固耦合 14 2.4.1 Lagrange、Eulerian、ALE法 15 2.5板殼結構受爆震波入射後的反應分析 17 2.6龍骨爆震因子 19 第三章嵌板受水下爆震之分析 23 3.1炸藥、水、及空氣的材料模型 24 3.2水域網格大小的影響 27 3.3有限元素模型簡介與分析方法 44 3.4分析結果 49 3.4.1應變率影響 49 3.4.2永久變形與破壞 51 3.5小節討論 61 第四章 船體結構抗爆震能力分析 63 4.1研究模型 63 4.2分析結果 67 4.2.1 LOAD_SSA法 67 4.2.2全水域網格法 87 4.3小節討論 94 第五章結論 95 參考文獻 97 | |
dc.language.iso | zh-TW | |
dc.title | 水下爆炸之結構爆震反應 | zh_TW |
dc.title | Shock Response of Structure Subjected to Underwater Explosion | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 宋家驥,王偉輝,江立全,徐培譽 | |
dc.subject.keyword | 水下爆炸,流固耦合,有限元素法,LS-DYNA,龍骨爆震因子, | zh_TW |
dc.subject.keyword | UNDEX,Fluid-structure Interference,FEM,LS-DYNA,Keel Shock Factor, | en |
dc.relation.page | 98 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-08-17 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
顯示於系所單位: | 工程科學及海洋工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-102-1.pdf 目前未授權公開取用 | 6.11 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。