發(fā)布時(shí)間：2018-02-04 14:01

  本文關(guān)鍵詞： 強(qiáng)風(fēng)流 理論計(jì)算方法 船舶操縱模擬試驗(yàn) 航道寬度　出處：《大連海事大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨著國家"一帶一路"經(jīng)濟(jì)大戰(zhàn)略的提出,港口的建設(shè)和發(fā)展成為了我國新時(shí)期經(jīng)濟(jì)規(guī)劃和建設(shè)中不可或缺的一部分。航道作為港口的重要組成部分,其寬度大小直接決定了船舶能否安全進(jìn)出港口以完成靠離泊作業(yè)。首先,我國目前已經(jīng)有一部分港口選址在風(fēng)、流影響較為嚴(yán)重的海域,較強(qiáng)的橫風(fēng)、橫流,對船舶在航道中的安全通航產(chǎn)生巨大的影響;其次,航運(yùn)競爭的激烈化,改變了船舶原有的營運(yùn)模式,出于船期和利潤考慮,一些船舶仍需在風(fēng)流較大的情況下進(jìn)出港口,強(qiáng)風(fēng)流條件下船舶能夠進(jìn)出港作業(yè)將是未來的發(fā)展趨勢;最后,為避免船舶遭遇惡劣天氣突襲或應(yīng)對緊急情況需要緊急撤離港口水域,或在更加惡劣的天氣到來之前進(jìn)出港口完成裝卸貨任務(wù),此時(shí),航道寬度的重要性便突顯出來。我國現(xiàn)行規(guī)范《海港總體設(shè)計(jì)規(guī)范》并未給出風(fēng)級大于7級,流速大于1.0m/s時(shí)風(fēng)、流壓差角和船舶漂移倍數(shù)的取值,進(jìn)而無法利用規(guī)范求出風(fēng)級大于7級,流速大于1.0m/s時(shí)船舶進(jìn)出航道所需的航道寬度值,致使航道設(shè)計(jì)單位、船舶駕駛操縱人員、港口主管機(jī)關(guān)等在確定強(qiáng)風(fēng)流條件下船舶所需的航道寬度時(shí)無規(guī)范可依,給船舶的安全航行帶來較大的安全隱患。本文通過對國內(nèi)外有關(guān)航道寬度的設(shè)計(jì)規(guī)范和研究方法進(jìn)行詳細(xì)地分析和比較,得出各國規(guī)范存在的優(yōu)缺點(diǎn)以及影響航道寬度的主要因素,結(jié)合本文的研究目的,考慮主要影響因素并建立強(qiáng)風(fēng)流條件下的航道寬度理論計(jì)算方法。選擇合適船型及試驗(yàn)條件,利用大型船舶操縱模擬設(shè)備NT-PRO 5000型模擬器對各工況進(jìn)行大量的模擬試驗(yàn),并對試驗(yàn)得到的風(fēng)、流壓差角和航跡帶寬度值進(jìn)行統(tǒng)計(jì)、分析。將模擬試驗(yàn)所得結(jié)果與理論計(jì)算方法所得結(jié)果進(jìn)行對比和分析,以確定各工況下合理的航跡帶寬度和風(fēng)、流壓差角數(shù)值。最后,根據(jù)所得航跡帶寬度數(shù)據(jù),計(jì)算不同風(fēng)流、航速條件下,不同船型所需的航道寬度值,并參照我國規(guī)范,獲得強(qiáng)風(fēng)流條件下的風(fēng)、流壓差角數(shù)值、漂移倍數(shù)和富裕寬度值,以供相關(guān)部門和人員參考,并為我國未來制定新的規(guī)范提供參考依據(jù)。
[Abstract]:With the national "Belt and Road" economic strategy proposed, the construction and development of the port has become an indispensable part of the economic planning and construction in the new period of our country. As an important part of the port, the waterway is an important part of the port. Its width directly determines whether ships can safely enter and leave the port to complete the berthing operation. Firstly, at present, some ports in China have been located in the wind, the more serious impact of the current in the sea area, stronger crosswind, crosscurrent. It has a great influence on the safe navigation of ships in the waterway. Secondly, the fierce competition of shipping has changed the original mode of operation of the ship. In view of the shipping time and profit, some ships still need to enter and leave the port under the condition of larger wind and flow. It will be the future development trend for ships to be able to work in and out of the port under the strong wind and current conditions. Finally, in order to avoid adverse weather raids or emergency situations, emergency evacuation from port waters or the completion of loading and unloading missions in and out of the port prior to the arrival of worse weather is required. The importance of channel width is obvious. The current code of harbour general design in our country does not give the value of wind, flow pressure difference angle and ship drift multiple when wind scale is greater than 7 and velocity is greater than 1.0 m / s. Then it is impossible to calculate the channel width when the wind scale is greater than 7 and the velocity of velocity is more than 1.0 m / s, which leads to the channel design unit and the pilot operator. In determining the channel width required by the ship under the strong wind and current conditions, the port competent authority and other authorities have no specifications to follow. This paper analyzes and compares the design specifications and research methods of waterway width at home and abroad. The advantages and disadvantages of the national norms and the main factors affecting the channel width are obtained, combined with the purpose of this paper. The main influencing factors are considered and the theoretical calculation method of channel width under the condition of strong wind current is established. The suitable ship type and test conditions are selected. A large number of simulation tests were carried out under each working condition by using NT-PRO 5000 simulator, and the wind, flow pressure difference angle and track width were calculated. Analysis. Compare and analyze the results of simulation test and theoretical calculation to determine the reasonable track width, wind and flow pressure angle. Finally. According to the data of track band width, the channel width values of different ship types are calculated under different wind flow and speed conditions, and the angle of wind and flow pressure difference under strong wind current condition is obtained by referring to the Chinese code. The value of drift multiple and rich width can be used as reference for relevant departments and personnel, and provide reference basis for the future establishment of new norms in our country.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U653.1

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