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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 洪振發(Chen-Far Hung) | |
| dc.contributor.author | Yun-Da Hsieh | en |
| dc.contributor.author | 謝昀達 | zh_TW |
| dc.date.accessioned | 2021-06-16T10:23:42Z | - |
| dc.date.available | 2018-08-20 | |
| dc.date.copyright | 2013-08-20 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-16 | |
| dc.identifier.citation | Amdahl J. and Kavlie D., 1992, “Experimental and numerical simulation of double hull stranding,” DNV-Workshop on Mechanics of Ship Collision and Grounding, Hovik, 1992.
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60621 | - |
| dc.description.abstract | 船舶碰撞與擱淺常造成船體結構破壞，引致貨品損失與人員嚴重傷亡，甚至可能引起後續的海洋污染災難等，近年來國際上對海洋環境保護與海洋維護以及對人員安全的重視，為使船舶事故發生所引發損傷降到最低，在船舶抗撞結構與航行安全更特別考量。船舶機艙配置船舶動力系統、電力系統、重要儀電系統，為船舶動力與操控核心部位。如遭撞擊造成船舶重大損失與燃油外洩的機率很高。本文探討8,236 TEU貨櫃船機艙段遭受同級貨櫃船側向撞擊過程的結構損壞與衝擊狀況。分析船舶碰撞發生後，撞擊船之船艏與被撞船之機艙段產生的破壞、相對運動關係。比較不同船速與不同角度狀態下船舶碰撞，觀察碰撞後結構破壞影響差異性。另外針對機艙段，修改機艙後段與機艙船側的局部結構強度，觀察局部強度增強對撞擊的破壞狀況、撞擊阻力以及結構吸能等狀況。同時比較高延性鋼材對撞擊損壞的影響。最後探討雙層殼結構艙間部份充水，對撞擊的影響。本文以LS-DYNA非線性更限元素程式分析船舶碰撞過程。使用高可變形船艏且同時使用高韌性的材料對撞擊結果的影響是最顯著的；雙層殼艙間充水也能降低撞擊時船體所受到的傷害，且僅需微小的修改船體設計。 | zh_TW |
| dc.description.abstract | Ship collision and stranding usually causes the damages on hull structures, series injuries of crews and loss of cargoes on ships may occur. Furthermore, collision may result in the consequently oceanic catastrophes, etc. In order to protect and to maintain the ocean environment and to promote the crew’s safety, as well as to minimize the losses and damage after accident, special designs for anti-collision and navigational safety has been taken into consideration in the last two decades. In the engine room the propulsion unit, power unit, and key equipment, and kernel of control system of ships are installed. If the engine room section of ship is struck, the serious consequence and escape of fuel oil may be caused with very high probability. In this paper, the engine room section of an 8,236TEU container was selected case study. The conditions of structural damages and impact characteristic of engine room section were examined. The structural damage of both colliding ships, the motion of ships were analyzed. The results of different cases were compared. The effects of change of local structures in engineering room on the crashworthiness were also investigated. At last, investigates the effect on collision, causing from partial filled fluid in side tank of a double hull container ship on the impact resistance for facilities in engine room the consequent crashworthiness hull structures in ship collision will be investigated. The LS-DYNA nonlinear finite element analysis program was used to analyze the ship collision in this paper. Using high deformable bow and also high ductile material for hull structure has the best results to improve crashworthiness of structure in ship collision, nevertheless, the design of ship structures may have changed significantly; using partial filled fluid in side tank can also improve the crashworthiness of ship structures, and it needs only small change of structural design. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T10:23:42Z (GMT). No. of bitstreams: 1 ntu-102-R00525014-1.pdf: 12567813 bytes, checksum: 05d6280d58e56f3f44f46931f715d6f2 (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 摘要 ....................................................................................................................... i
Abstract ................................................................................................................ iii 目錄 ...................................................................................................................... v 圖目錄 ............................................................................................................... viii 表目錄 ............................................................................................................... xiv 第一章導論 .......................................................................................................... 2 1.1研究動機與目的 ..................................................................................... 2 1.2文獻回顧 ................................................................................................. 3 1.3 研究內容 ................................................................................................ 6 第二章 船體結構的基本力學理論 .................................................................... 10 2.1 材料力學特性 ...................................................................................... 10 2.2 應變率對材料的影響 ........................................................................... 13 2.3船舶碰撞理論簡介 ............................................................................... 15 2.4研究內部力學的方法............................................................................ 17 第三章 模擬水槽自由液面效應 ........................................................................ 22 3.1 Fluent運算分析 .................................................................................... 22 3.1.1 VOF分析簡介............................................................................ 22 3.2 VOF分析模型 ...................................................................................... 23 3.2.1 水槽模型 ................................................................................... 23 3.2.2 分析模型邊界設定 .................................................................... 24 3.3 流體壓力與網格大小關係 ................................................................... 27 3.4 暫態分析結果 ...................................................................................... 31 3.4.1 半滿水箱分析............................................................................ 31 3.4.2 八分滿水箱分析 ........................................................................ 36 3.5 等效質量彈簧 ...................................................................................... 40 3.5.1 等效質量彈簧............................................................................ 40 3.6 討論...................................................................................................... 45 第四章 更限元素模型與附加質量 .................................................................... 46 4.1機艙結構更限元素分析模型 ................................................................ 48 4.2 船艏結構更限元素分析模型 ............................................................... 53 4.3 附加質量（Added Mass）計算 ........................................................... 55 4.4撞擊模擬方式 ....................................................................................... 58 第五章 不同狀況船艏撞擊貨櫃船機艙之損壞分析 ......................................... 60 5.1 不同船速之撞擊分析 ........................................................................... 60 5.2 不同狀擊角度之碰撞分析 ................................................................... 64 5.3 能量公式比較 ...................................................................................... 67 5.4 討論...................................................................................................... 68 第六章 不同結構船艏撞擊貨櫃船機艙之損壞分析 ......................................... 70 6.1 不同機艙外殼局部結構對撞擊損壞之影響 ........................................ 71 6.1.1 一般船側結構............................................................................ 71 6.1.2 改良型船側結構（I） ............................................................... 71 6.1.3 改良型船側結構（II） ............................................................. 72 6.1.4 討論 ........................................................................................... 72 6.2不同船艏局部結構與材料特性之影響 ................................................. 73 6.3 討論...................................................................................................... 77 第七章 艙間充水撞擊分析 ............................................................................... 82 7.1艙間水5分滿 ....................................................................................... 84 7.2 艙間充水8分滿 .................................................................................. 84 7.3 討論...................................................................................................... 85 7.4 綜合比較 .............................................................................................. 90 第八章 結論 ...................................................................................................... 94 8.1 結論...................................................................................................... 94 8.2 未來展望 .............................................................................................. 95 參考文獻 ............................................................................................................ 98 | |
| dc.language.iso | zh-TW | |
| dc.subject | 部分裝水水箱 | zh_TW |
| dc.subject | 衝擊 | zh_TW |
| dc.subject | 損傷 | zh_TW |
| dc.subject | 撞擊 | zh_TW |
| dc.subject | 船舶 | zh_TW |
| dc.subject | partial filling of tank | en |
| dc.subject | damage | en |
| dc.subject | collision | en |
| dc.subject | ship | en |
| dc.subject | shock | en |
| dc.title | 貨櫃船機艙段之抗撞性能分析 | zh_TW |
| dc.title | Crashworthiness of Container Engine Room Section in Ship Collision | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 梁卓中,王偉輝,周志明,黃心豪 | |
| dc.subject.keyword | 部分裝水水箱,衝擊,損傷,撞擊,船舶, | zh_TW |
| dc.subject.keyword | partial filling of tank,shock,damage,collision,ship, | en |
| dc.relation.page | 99 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-16 | |
| 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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