本文選題：多用途拖輪　切入點(diǎn)：線型優(yōu)化　出處：《大連理工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：本文對(duì)一型8000千瓦多功能應(yīng)急搶險(xiǎn)打撈拖輪的總體設(shè)計(jì)關(guān)鍵技術(shù)進(jìn)行了研究,分析總結(jié)了相近功率級(jí)別多功能應(yīng)急搶險(xiǎn)打撈拖輪的總體設(shè)計(jì)技術(shù)要點(diǎn),對(duì)拖船的動(dòng)力系統(tǒng)配置和船體線型進(jìn)行綜合優(yōu)化,并通過數(shù)值計(jì)算和模型試驗(yàn)相結(jié)合的手段研究了目標(biāo)船型的水動(dòng)力性能,為進(jìn)一步提高多用途拖輪的總體性能及設(shè)計(jì)技術(shù)、拓展多用途拖輪的功能提供了一定的參考依據(jù)。本文主要的研究工作及結(jié)論包括：(1)結(jié)合多用途拖輪的任務(wù)需求、作業(yè)能力、設(shè)備及系統(tǒng)配置等多方面對(duì)應(yīng)急搶險(xiǎn)打撈拖輪進(jìn)行了方案論證研究,比較了不同形式的推進(jìn)系統(tǒng)應(yīng)用在多用途拖船上時(shí)的優(yōu)缺點(diǎn),確定了應(yīng)急搶險(xiǎn)打撈拖輪的最佳推進(jìn)系統(tǒng)配置。研究結(jié)果表明：技術(shù)趨于完善的緊湊型吊艙槳推進(jìn)方案在綜合經(jīng)濟(jì)性上較常規(guī)槳推進(jìn)方案具有明顯優(yōu)勢(shì),作業(yè)靈活,運(yùn)營(yíng)管理方便,且具有高效、節(jié)能、環(huán)保等優(yōu)點(diǎn)。(2)應(yīng)急搶險(xiǎn)撈拖輪既需要具有較高的航速(傅汝得數(shù)接近0.3),又需要在低速工況下具有較大的推力,采用常規(guī)類似船型的線型,對(duì)減阻的效果并不明顯,通過線型優(yōu)化有效減少了船體興波所帶來(lái)的能量損耗。同時(shí),優(yōu)化后的線型配合吊艙推進(jìn)裝置,使目標(biāo)拖輪推進(jìn)效率更高。(3)多用途拖輪需要在較為惡劣海況下長(zhǎng)時(shí)間作業(yè),耐波性要求較高。采用數(shù)值分析方法與模型試驗(yàn)方法相結(jié)合的分析方法對(duì)本船的水動(dòng)力性能進(jìn)行了分析,得到了不規(guī)則波條件下的運(yùn)動(dòng)響應(yīng),可為應(yīng)急搶險(xiǎn)打撈拖輪實(shí)際作業(yè)提供參考。
[Abstract]:In this paper, the key technology of the overall design of a 8000 kW multi-function emergency salvage tugboat is studied, and the main points of the overall design of the similar power level multi-function emergency salvage tugboat are analyzed and summarized. In order to improve the overall performance and design technology of multi-purpose tug, the dynamic system configuration and hull alignment of tugboat are optimized synthetically, and the hydrodynamic performance of the target ship is studied by means of numerical calculation and model test. The main research work and conclusions in this paper include: 1) combining the task demand and operation ability of the multipurpose tug. This paper studies the scheme of emergency salvage tugboat from equipment and system configuration, and compares the advantages and disadvantages of different propulsion systems in multi-purpose tugboat. The optimal propulsion system configuration of emergency rescue salvage tugboat is determined. The research results show that the compact podded propeller propulsion scheme with perfect technology has obvious advantages over conventional propelling scheme in economy, and is flexible in operation. Operation and management is convenient, and it has the advantages of high efficiency, energy saving, environmental protection etc.) the emergency rescue salvage tugboat needs not only a higher speed (near 0.3 Froude number, but also a large thrust at low speed conditions, but also a line type similar to the conventional ship type, etc.). The effect of drag reduction is not obvious, and the energy loss caused by ship hull wave-making can be effectively reduced by the optimization of the line shape. At the same time, the optimized alignment and podded propulsion device, To make the target tug more efficient, the multi-purpose tug needs to operate for a long time in the more severe sea conditions. The hydrodynamic performance of the ship is analyzed by the combination of numerical analysis method and model test method, and the motion response of the ship under irregular wave conditions is obtained. It can provide reference for emergency salvage tug operation.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U674.181

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本文編號(hào)：1593164