基于MMG拖轮对船舶旋回性能的影响研究
发布时间:2021-06-05 14:36
本文对拖轮辅助下的船舶转向能力进行了研究。本研究旨在评估拖船辅助船舶转弯性能,并探讨拖船可采用的各种操作技术,以提高船舶的转弯性能。实验方法主要是从实验中收集定量数据,文献资料主要是收集相关理论和概念。试验是在MMG模型船舶操纵模拟器上进行的,该模拟器包含高度标准化的技术,用计算机数据记录器记录试验数据,用于收集试验中的数值数据。使用的模型船是334m LOA的VLCC油轮,拖船模型是1800HP,3000HP,4800HP和7000HP的ASD拖船,并对试验过程中收集到的结果进行了总结、分析和讨论。通过研究结果表明拖轮辅助对船舶的转向能力有很大影响,这种影响主要取决于辅助拖船的动力、使用的辅助拖船的数量、辅助拖船与被辅助船体之间的拖缆角度、采用的辅助方法以及辅助拖船相对于船舷的位置。经验证,助航拖船的功率越大,助航所产生的力越大,助航拖船的转向能力越好。助航拖船的数量越多,助航效率越高,助航能力越强,助航拖船的转向能力越好。从辅助拖轮到辅助船体的90度和75度拖缆角度被证明是提高船舶转弯能力的最佳拖缆角度。推靠船体的辅助方法比拉法具有更好的转弯能力。在协助时,拖船靠船舷的最佳位置是从...
【文章来源】:大连海事大学辽宁省 211工程院校
【文章页数】:109 页
【学位级别】:硕士
【部分图文】:
图4.1基本实验1的转弯率(右舷和左舷转弯动作)??
ROT?Chart?for?a?Staboard?Turn?ROT?Chart?for?a?Port?Tuni??3?今?〇?—1??—K?v,?r-?r-?C-?—?d???—??f3°??i???屋-1〇??I:?I:??〇?J?-3〇??Time?(sec)?Time?(sre)??Figure?4.?1?Rates?of?tum?for?basic?experiment?1?(starboard?and?port?turn?manoeuvres)??图4.1基本实验1的转弯率(右舷和左舷转弯动作)??Speed?Loss?Chan?for?a?Starboard?Speed?Lo仏?Chan?for?a?Port?Turn??16?16??r;??1:????6?6??4?■???2??Tmve?(s^c)?Time?(see)??Figure?4.?2?Speed?loss?for?basic?experiment?1?(starboard?and?port?tum?manoeuvres)??图4.2基本实验1的速度损失(右舷和左舷转向操纵)??-25?-??
00??150?3?300??^?100?^?:〇〇?'^—????f?50?1?丨00??-〇??=?〇????C?(卜*?■?产.T?(???(?C?(卜'??5〇?0?2?4?6?8?10?〇?-?<*4?,:?T1?w?d?卜??Tnne?(min)?Time?(init〇??Figure?4.?3?Time?taken?to?change?the?heading?by?90°?and?180°?for?basic?experiment?1??图4.3将标题改为基本实验1的9(T和H〇u所需时间??4.2.2?Ship?Turning?Ability?without?Tugboat?Assistance?at?Slow?Speed??This?experiment?which?also?referred?as?the?basic?experiment?2?presents?the?data?for?the??model?ship?VLCC32?at?dead?slow?ahead?and?at?the?test?speed?of?5?knots.?This?experiment?that??comprised?the?third?and?fourth?trials?for?the?starboard?turn?and?port?turn?were?conducted??respectively,?and?the?results?of?these?tests?are?presented?in?the?table?4.2.??Table?4.?2?Results?of?the?basic?expe
本文编号:3212349
【文章来源】:大连海事大学辽宁省 211工程院校
【文章页数】:109 页
【学位级别】:硕士
【部分图文】:
图4.1基本实验1的转弯率(右舷和左舷转弯动作)??
ROT?Chart?for?a?Staboard?Turn?ROT?Chart?for?a?Port?Tuni??3?今?〇?—1??—K?v,?r-?r-?C-?—?d???—??f3°??i???屋-1〇??I:?I:??〇?J?-3〇??Time?(sec)?Time?(sre)??Figure?4.?1?Rates?of?tum?for?basic?experiment?1?(starboard?and?port?turn?manoeuvres)??图4.1基本实验1的转弯率(右舷和左舷转弯动作)??Speed?Loss?Chan?for?a?Starboard?Speed?Lo仏?Chan?for?a?Port?Turn??16?16??r;??1:????6?6??4?■???2??Tmve?(s^c)?Time?(see)??Figure?4.?2?Speed?loss?for?basic?experiment?1?(starboard?and?port?tum?manoeuvres)??图4.2基本实验1的速度损失(右舷和左舷转向操纵)??-25?-??
00??150?3?300??^?100?^?:〇〇?'^—????f?50?1?丨00??-〇??=?〇????C?(卜*?■?产.T?(???(?C?(卜'??5〇?0?2?4?6?8?10?〇?-?<*4?,:?T1?w?d?卜??Tnne?(min)?Time?(init〇??Figure?4.?3?Time?taken?to?change?the?heading?by?90°?and?180°?for?basic?experiment?1??图4.3将标题改为基本实验1的9(T和H〇u所需时间??4.2.2?Ship?Turning?Ability?without?Tugboat?Assistance?at?Slow?Speed??This?experiment?which?also?referred?as?the?basic?experiment?2?presents?the?data?for?the??model?ship?VLCC32?at?dead?slow?ahead?and?at?the?test?speed?of?5?knots.?This?experiment?that??comprised?the?third?and?fourth?trials?for?the?starboard?turn?and?port?turn?were?conducted??respectively,?and?the?results?of?these?tests?are?presented?in?the?table?4.2.??Table?4.?2?Results?of?the?basic?expe
本文编号:3212349
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