考慮航速的集裝箱班輪航線配船問題研究
發(fā)布時(shí)間:2019-05-22 14:12
【摘要】:隨著集裝箱班輪運(yùn)輸業(yè)的迅速發(fā)展,班輪配船日益受到重視。配船的成功與否直接影響到企業(yè)目前的營運(yùn)與未來的發(fā)展。九十年代貨源充足時(shí),大部分公司配船的目的是追求利潤(rùn)最大化;隨著班輪市場(chǎng)運(yùn)力的不斷提升,尤其是受金融危機(jī)的影響,班輪公司的盈利越來越微薄,虧損現(xiàn)象比比皆是,此時(shí)的配船是在滿足運(yùn)力的條件下,追求成本最小。班輪因其服務(wù)的便捷性、可靠性與準(zhǔn)時(shí)性而受歡迎,貨物集裝箱化程度越來越高是必然現(xiàn)象,短時(shí)間內(nèi)班輪運(yùn)輸業(yè)或許會(huì)受到國際經(jīng)濟(jì)形勢(shì)的影響,出現(xiàn)低谷現(xiàn)象。但從發(fā)展趨勢(shì)來看,班輪運(yùn)輸市場(chǎng)將繼續(xù)發(fā)展壯大,并趨向運(yùn)力與運(yùn)量平衡。因此,班輪公司應(yīng)該從長(zhǎng)遠(yuǎn)發(fā)展出發(fā),配備現(xiàn)有船舶,既不讓現(xiàn)有船舶閑置,又不致公司入不敷出;更重要的是能吸引更多的貨源,占領(lǐng)更多的市場(chǎng)份額,為公司的長(zhǎng)久發(fā)展創(chuàng)造機(jī)會(huì)、鋪墊基礎(chǔ)。同時(shí),充分考慮船舶速度對(duì)船舶配置的影響,在航運(yùn)低迷期,可以通過速度的調(diào)節(jié)吸納更多的運(yùn)力;而在航運(yùn)高峰期則可以提高速度,從而為集裝箱貨主提供更便捷及時(shí)的運(yùn)輸服務(wù)。 本文基于上述理念,參照已有模型,提出了以船舶速度和船舶數(shù)量為決策變量的班輪航線配船模型。在考慮船舶速度的基礎(chǔ)上,分別針對(duì)航運(yùn)上行期和下行期建立數(shù)學(xué)模型,在航運(yùn)上行期以收益最大為目標(biāo),為公司創(chuàng)造盡可能多的利潤(rùn),而在航運(yùn)下行期,則以營運(yùn)成本為目標(biāo),為公司將成本降至最低。本文運(yùn)用禁忌搜索算法對(duì)模型進(jìn)行求解,并設(shè)計(jì)了c語言程序,數(shù)值試驗(yàn)的結(jié)果證明模型具有一定的實(shí)際運(yùn)用價(jià)值。
[Abstract]:With the rapid development of container liner transportation, liner allocation has been paid more and more attention. The success of ship allocation has a direct impact on the current operation and future development of the enterprise. When the supply of goods was sufficient in the 1990s, the purpose of most companies to allocate ships was to maximize profits. With the continuous improvement of liner market capacity, especially affected by the financial crisis, the profits of liner companies are becoming thinner and thinner, and the phenomenon of losses is everywhere. At this time, the allocation of ships is in the pursuit of the smallest cost under the condition of meeting the capacity. Liner is popular because of the convenience, reliability and timeliness of its service. It is an inevitable phenomenon that the degree of container loading is getting higher and higher. In a short period of time, the liner transport industry may be affected by the international economic situation, and there will be a trough phenomenon. However, from the point of view of the development trend, the liner transport market will continue to develop and expand, and tend to balance the capacity and volume. Therefore, the liner company should proceed from the long-term development, equipped with the existing ship, neither let the existing ship idle, nor the company can not make ends meet; More importantly, it can attract more supply, occupy more market share, create opportunities and lay the foundation for the long-term development of the company. At the same time, fully considering the influence of ship speed on ship configuration, in the period of shipping downturn, more capacity can be absorbed through the adjustment of speed. In the peak period of shipping, it can improve the speed, so as to provide more convenient and timely transportation services for container owners. Based on the above concepts and referring to the existing models, a liner route allocation model with ship speed and ship number as decision variables is proposed in this paper. On the basis of considering the speed of the ship, the mathematical models are established for the upstream and downgoing periods of shipping respectively. the maximum profit is taken as the goal of the shipping advance period, so as to generate as many profits as possible for the company, while in the shipping downgoing period, It aims at operating costs and minimizes costs for the company. In this paper, Tabu search algorithm is used to solve the model, and a c language program is designed. The results of numerical experiments show that the model has certain practical application value.
【學(xué)位授予單位】:大連海事大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:U695.22
本文編號(hào):2482997
[Abstract]:With the rapid development of container liner transportation, liner allocation has been paid more and more attention. The success of ship allocation has a direct impact on the current operation and future development of the enterprise. When the supply of goods was sufficient in the 1990s, the purpose of most companies to allocate ships was to maximize profits. With the continuous improvement of liner market capacity, especially affected by the financial crisis, the profits of liner companies are becoming thinner and thinner, and the phenomenon of losses is everywhere. At this time, the allocation of ships is in the pursuit of the smallest cost under the condition of meeting the capacity. Liner is popular because of the convenience, reliability and timeliness of its service. It is an inevitable phenomenon that the degree of container loading is getting higher and higher. In a short period of time, the liner transport industry may be affected by the international economic situation, and there will be a trough phenomenon. However, from the point of view of the development trend, the liner transport market will continue to develop and expand, and tend to balance the capacity and volume. Therefore, the liner company should proceed from the long-term development, equipped with the existing ship, neither let the existing ship idle, nor the company can not make ends meet; More importantly, it can attract more supply, occupy more market share, create opportunities and lay the foundation for the long-term development of the company. At the same time, fully considering the influence of ship speed on ship configuration, in the period of shipping downturn, more capacity can be absorbed through the adjustment of speed. In the peak period of shipping, it can improve the speed, so as to provide more convenient and timely transportation services for container owners. Based on the above concepts and referring to the existing models, a liner route allocation model with ship speed and ship number as decision variables is proposed in this paper. On the basis of considering the speed of the ship, the mathematical models are established for the upstream and downgoing periods of shipping respectively. the maximum profit is taken as the goal of the shipping advance period, so as to generate as many profits as possible for the company, while in the shipping downgoing period, It aims at operating costs and minimizes costs for the company. In this paper, Tabu search algorithm is used to solve the model, and a c language program is designed. The results of numerical experiments show that the model has certain practical application value.
【學(xué)位授予單位】:大連海事大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:U695.22
【引證文獻(xiàn)】
相關(guān)碩士學(xué)位論文 前2條
1 吳曉研;多式聯(lián)運(yùn)下小型LNG集裝箱運(yùn)輸船與集卡優(yōu)化配置研究[D];大連海事大學(xué);2013年
2 李慶慧;基于改進(jìn)最速下降法的集裝箱班輪船期設(shè)計(jì)優(yōu)化研究[D];大連海事大學(xué);2013年
,本文編號(hào):2482997
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