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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 洪振發 | |
dc.contributor.author | Tsung-Lin Chou | en |
dc.contributor.author | 周宗燐 | zh_TW |
dc.date.accessioned | 2021-06-13T06:54:02Z | - |
dc.date.available | 2015-05-02 | |
dc.date.copyright | 2005-08-01 | |
dc.date.issued | 2005 | |
dc.date.submitted | 2005-07-28 | |
dc.identifier.citation | 1. Aanhold, J.I.; Meijer, G.J.; and Lemmen, P.P.M., 1998, Underwater Shock Response Analysis of a Floating Vessel, Shock and Vibration, 5., pp.53-59
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Kwon, Y.W. and Fox, P.K., 1993, Underwater Shock Response of acylinder Subjected to a Side-on Explosions, Computers and Structures, Vol.48, No.4, pp.637-646. 29. Lamb, H., 1923, “The Early Stages of a Submarine Explosion”, Philosophical Magazine, Vol.45, pp. 257-265. 30. Lee, S.G.; Kwon, J. I.;chung, S.M., 2000, Shock Response Analysis under Underwater Explosionconsideringcavitation, TEAM’2000 Vladivostok. 31. Lee, S.G.; Park, J.K., 1999, Shock Response Analysis of Submerge Structures under Underwater Explosions, TEAM’99 Keelung. 32. Mair, H.U., 1999, Review: Hydro-code for Structural Response to Underwater Explosions, Shock and Vibration, 6., pp.81-96. 33. Mindlin, R.D., and H.H Bleich, 1953, Response of an elasticcylindrical shell to a transverse step shock wave, J. Appl. Mech. 20, pp. 189-195. 34. Molyneaux, T.C.K., Li, Long-Yuan and Firth, N., 1994, Numerical Simulation of Underwater Explosions, Computer Fluids, Vol.23, No. 7, pp. 903-911. 35. Molyneaux, T.C.K. and Li, L.Y., 1994, Numerical Simulation of Underwater Explosion, Computers and Fluids, Vol.23, No.7, pp. 903-911. 36. Rajendran, R. ; Vendhan,c.P. and Rao, V.B., 2000, Non-linear Transient Dynamic Response of Rectangular Plates under Shock Loading, J. Impact Engineering, 24, pp.999-1015 37. Rajendran, R. and Narasihmhan, K., 2001, Linear Elastic Shock Response of Plane Plates Subjected to Underwater Explosion, J. Impact Engineering, 25, pp.493-506. 38. Ramsauer, C., 1923, Die Massenbewegung des Wassers bei Unterwasser Expplsionen, Annalen der Physik, Vo1.72, pp. 265-284. 39. Randal, R.J., 1986, Underwater Shock Trials on a Plain Unreinforced cylinder, Shock Vibration Bulletin, 56, pp. 107-119. 40. Ruzicka, G.C. and Geers, T.L., 1989, Transient Response Analysis of Multiple Submerged Structures, Finite Element in Analysis and Design, Vo1.6, pp.153-172. 41. Sany, H.G., 1957, Unterwasser-Explosionen Hydromechanische Vorga- enge and Wirkungen, Jahrbuch der STG, 1957, pp.222-235. 42. Schleyer, G.K. and Hsu, S.S., 2000, A modeling Scheme for Predicting the Response of Elastic-Plastic Structures to Pulse Loading, J. Impact Engineering, 24, pp.759-777. 43. Shin, Y.S. andchisum, J.E., 1997, Modeling and Simulation of Underwater Shock Problems Using acoupled Lagrangian-Eulerian Analysis Approach, Journal of Shock and Vibration,Vol. 4, No. 1, pp. 1-10, John Wiley & Sons, Inc. 44. TNO, 1994, A Shortcourse on Marine Structure Response to Under Water Explosions, Centre for Mechanical Engineering TNO, the Netherland. 45. Umemoto, K.; T. Yoshikawa; K. Nozawa; H. Sakaue; T. Sano 1997,, Structural Response of a Submerged Structure Subjected to underwater Explosion Loads, (1st, report: A Study on Shock Loading to acylindrical Shell Structure), 日本造船協會論文集, 182號, pp.837-849. 46. 米田尚弘,岩田節雄,谷川雅之,Rashed, S.M.H,河原充,1994, 三次元水中衝擊波之浮休結構物之衝擊應答,日本造船協會論文集, 175, pp.349-357 47. 林志榮、涂季平、黃清哲,邊界元素法水下爆炸氣泡動力學之應用,第十八屆海洋工程研討會論文集。 48. 洪振發,江立泉,等,1999, 艦艇水下爆震之結構動態反應,海發中心研究報告。 49. 洪振發,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。 50. 洪振發,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。 51. 洪振發,呂岳峰,余孟泉,江立全,取良寧,2001,水下爆震類船型圓柱殼結構震顫分析,中國造船暨輪機工程學刊, Vol.20, No.2, pp.41~50. 52. 洪振發,徐培譽,2003,嵌板受水下爆炸衝擊的非線性動態反應,J. SNAME-ROC, Vol.22, No.4, pp.201-212. 53. 洪振發,徐培譽,2004,水下爆震對結構之衝擊,臺灣大學工程科學與海洋工程學研究所博士論文。 54. 洪振發,徐培譽,皇甫敬嘉,2002. 水槽內嵌板受水下爆震波衝擊之動態反應量測與數值分析,J. SNAME-ROC, Vol.21, No.2, pp.71-82. 55. 洪振發,黃圭章, 2001,現有商用有限元素套裝軟體水下爆炸應用之精確性研究, 中山科學研究院, 國防科技合作研究計畫, 研究報告 56. 齊藤年正, 小川義孝, 八尾英男, 1995, Gas Bubble-Induced Ship Hull Whipping, 關西造船協會誌, 223號, pp.105-113. 57. 齊藤年正, 小川義孝, 八尾英男, 村田修二, 1996, Vibration Response of Ship Hull at Impulsive Force, 關西造船協會誌, 225, pp.167-174. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/35465 | - |
dc.description.abstract | 水下爆炸過程中,掌握艦艇結構可能破損狀況以保持高倖存率為軍用艦艇結構設計的重要工作之一。另外,若能準確預估艦艇結構破損狀況,更為設計攻擊武器的重要參考。在探討水下爆炸對於船體的衝擊分析之前,應先確認分析模式與分析方法的可靠性,因此先以船艦或潛艦的簡化外殼結構為分析與試驗之研究對象,在可掌握的條件下,比較並且評估分析結果的可靠性,同時對近似理論估算結果進行比較,以確認近似估算方法的可用範圍。
本研究選擇接近潛艦比例之圓柱殼結構模型進行小模型水下爆炸對結構衝擊的數值分析與試驗研究。圓柱結構模型的長與直徑之比例取接近潛艦的長寬比,並且考慮具環向加強肋骨之圓柱殼結構狀況,以檢討環向加強肋骨,對於水下爆炸圓柱殼抗爆震能力之影響。 在爆炸試驗的設定上,選定在4m × 4m × 4m水箱內進行90cm × 30cm × 1mm 之具環向加強肋骨圓柱殼結構水下爆炸試驗,並進行相同條件下之數值分析,對於試驗與分析結果進行比較。 分成二種圓柱殼模型進行試驗與分析: a. 環向肋骨加於圓柱殼外部,以1mm厚度汽車用鋼製成。 b. 環向肋骨加於圓柱殼內部,以1mm厚度不銹鋼製成。 試驗過程選擇190cm、100cm、50cm、30cm多種爆炸距離;190cm至50cm之爆炸距離狀況旨在探討圓柱殼之彈性反應;30cm之爆炸距離狀況旨在探討彈塑性動態反應與塑性破壞現象。在爆炸間距為190cm狀況又分10cm與33cm兩種爆炸水深,以比較有無氣泡脈衝影響之衝擊反應。 在配合試驗的FEM模擬分析上,則應用以『改良雙漸進近似模型(Doubly Asymptotic Approximation,簡稱DAA)』理論發展的USA程式,來處理水下爆炸衝擊(包含主爆震波與爆炸氣泡)與流體及固體界面壓力變化之流-固耦合關係,推算結構浸水面的衝擊壓力,再結合LS/DYNA系統,繼續分析圓柱殼結構遭受水下爆炸之衝擊所造成的動態反應。 針對小水箱小藥量之試驗條件檢討試驗環境對試驗結果的影響與量測資料的修正處理,同時針對試驗模型進行水下爆炸之震波壓力估算比較,以確認主爆震波峰值估算之可用性。以修正之量測爆壓值為入射波壓,進行有限元素法分析,比較量測與分析所得之加速度與應變分佈,檢討數值分析之可行性。 | zh_TW |
dc.description.abstract | The experimental and numerical studies of linear and nonlinear dynamic response of cylindrical shell structures with stiffener rings subjected to underwater explosion in a 4m×4m×4m water tank have been examined in this work. The dimensions of cylindrical structures are Length × Diameter × thickness = 90cm×30cm×1mm. Two models were examined:
- cylindrical shell structure with outside stiffener rings made of 1mm mild steel - cylindrical shell structure with inside stiffener rings made of 1mm mild steel The experiments of dynamic response of cylinder subjected to UNDEX were performed with different standoff distances, which were varied from 30cm to 190cm. The standoff from 50cm to 190cm were designed to observe the linear responses, and the standoff 30cm was used to observe the plastic failures of cylindrical structures. The modified measured pressure data were used as incident pressure of shock wave.The numerical analysis for the same experimental model was performed forcomparison. The USA and LS/DYNA software systems were selected as analysis tools. The accelerations and dynamic strains obtained from experiment and numerical analysis were compared. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T06:54:02Z (GMT). No. of bitstreams: 1 ntu-94-R92525035-1.pdf: 5477401 bytes, checksum: 91fbfed74280adf3a588d5a77366f52b (MD5) Previous issue date: 2005 | en |
dc.description.tableofcontents | 摘要
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…………………………………………………............... 5 第二章 水下爆炸理論與現象描述……………………………….… 7 2.1 水下爆炸現象…………………………………………………....... 7 2.2 爆震波的壓力歷時變化………………………………………….. 8 2.3 爆炸後氣泡運動與次衝擊波……………………………………... 10 2.4 水面及水底邊界對衝擊波傳遞的影響…………………………... 11 第三章 具環向加強肋骨圓柱殼結構水下爆炸衝擊試驗…….... 15 3.1 水下爆炸試驗安排………………………………………………... 15 3.2 試驗觀測距離與爆點水深………………………………………... 20 3.3 試驗環境對量測結果的影響及量測值之修正…………………... 23 3.3.1 主爆震波與氣泡脈衝觀測結果討論………………………… 23 3.3.2 量測爆震波受邊界反射的影響……………………………… 27 3.3.3 量規力學反應影響(爆壓計量測)………………………… 29 3.3.4 爆炸衝擊壓力量測結果之修正……………………………… 30 3.3.5 修正後量測爆壓極值與經驗估算式計算結果的比較……… 32 3.3.6 觸動電壓對量測系統之影響………………………………… 34 3.4 小結………………………………………………………………... 37 第四章 水下爆炸FEM分析與試驗量測結果之比較與討論….. 41 4.1 以雙漸進近似法處理結構表面流固耦合效應與衝擊力之關係... 41 4.2 量測壓力作為FEM爆震分析輸入資料之前處理………………. 45 4.3 高速衝擊力對結構材料強度之影響……………………………... 47 4.4 有限元素分析模型………………………………………………... 49 4.4.1 建立圓柱殼模型……………………………………………... 49 4.4.2 材料模型……………………………………………………... 50 4.4.3 加速規之考量………………………………………………... 52 4.4.4 水下爆震分析時步討論……………………………………... 52 4.4.5 非對稱反應之調整…………………………………………... 53 4.5 相同爆炸距離狀況1與狀況2之FEM分析與試驗結果比較…… 54 4.5.1 爆壓歷時輸入………………………………………………... 54 4.5.2 加速度………………………………………………………... 56 4.5.3 動態應變……………………………………………………... 75 4.5.4 振動模式討論………………………………………………... 84 4.6 近距離爆炸狀況5之FEM分析與試驗結果比較………………... 86 4.6.1 爆壓歷時輸入………………………………………………... 86 4.6.2 加速度………………………………………………………... 87 4.6.3 動態應變……………………………………………………... 94 4.7 小結………………………………………………………………... 98 第五章 結論與展望……………………………………………............. 101 5.1 本文總結…………………………………………………………... 101 5.2 未來展望…………………………………………………………... 104 參考文獻…………………………………………………………………. 107 附錄A. 水下爆炸衝擊試驗之試驗規劃………………………...… 113 附錄B. 水下爆炸衝擊試驗動態量測結果……………………..…. 123 B1. 第一次水下爆炸試驗-外側環向加強肋骨圓柱殼……………... 123 B2. 第二次水下爆炸試驗-內側環向加強肋骨圓柱殼……………... 137 | |
dc.language.iso | zh-TW | |
dc.title | 圓柱殼結構受水下爆炸衝擊之動態反應研究 | zh_TW |
dc.title | Dynamic response of cylindrical shell structure subjected to underwater explosion | en |
dc.type | Thesis | |
dc.date.schoolyear | 93-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 王偉輝,陳永祥,梁卓中 | |
dc.subject.keyword | 圓柱殼結構,水下爆炸,試驗,FEM,DAA, | zh_TW |
dc.subject.keyword | cylindrical structures,underwater explosion,experiment,FEM,DAA, | en |
dc.relation.page | 151 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2005-07-28 | |
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 |
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