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本文通过介绍影响船舶噪音的主要因素,并进一步分析38500DWT波士顿船宽油轮的噪音计算情况,最终提出了解决的方案,对于其他船舶有借鉴意义。 相似文献
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近年来,我公司接到不少关于不锈钢货舱化学品船的询价,主要有6000DWT级、8000DWT级、10000~14000DWT级、20000~25000DWT级及40000DWT级等。现某船东已经正式向我公司提出建造13450DWT不锈钢货舱化学品船的意向。开发并积极争取承接和建造该型船,符合本公司以承建高技术、高附加值船舶为主的战略方针。本文就不锈钢货舱化学品船的设计建造可行性作一探讨。 相似文献
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38500 DWT系列液货船货油泵变频器控制系统设计 总被引:1,自引:0,他引:1
随着38500DWT波士顿船宽油船的成功建造和系列船的承接,装配变频控制器的电动式深井货油泵的液货船已经成为公司的主力船型,本文着重介绍电动式深井货油泵的变频控制系统。 相似文献
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本文主要针对公司建造的50500 DWT(B)型船主机MGO系统作了详细的介绍,重点分析了主机MGO系统产生的背景、系统的组成及工作原理、系统的调试,为后续船的建造提供一定经验参考。 相似文献
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型宽为27.2m的38500 DWT成品油轮在2#船台净宽不足30m的场地中吊装舵叶,是我公司首次碰到的技术难题。本文针对该船吊装舵叶时如何改变以往的吊装方案,避免吊装时出现舵叶碰撞挡土墙等技术难题与采取的薪吊装方案进行了阐述。 相似文献
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Since paper freight-hedging tools were introduced to counter volatile tanker freight rates, the hesitant uptake of tanker Forward Freight Agreements (FFAs) has been attributed to traditional risk seeking propensities amongst tanker owners, naturally reluctant to hedge against risk. To test how far the well-documented generic determinants and incentives for corporate hedging could explain this hesitation in the tanker market, the attitudes of tanker owners and charterers towards freight hedging, risk and perceptions of FFAs, were surveyed. Although FFAs were widely viewed as an important development, some respondents were unaware of their function and a majority had not used them. The link between freight hedging activity and participants' risk aversion was not clear-cut, but with market liquidity critical to raising FFA usage improved technical education is essential to widespread acceptance 相似文献
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独立式和整体式货舱的沥青运输船技术特点分析 总被引:1,自引:0,他引:1
沥青船属于化学品船,在设计中必须充分考虑其特点,特别是货舱结构形式、船检规范也有特别要求,技术上有一定难点。文章以6200m^3独立式货舱沥青船和4999t整体式货舱沥青船的设计和建造为基础,对其货舱结构形式等的技术特点进行较全面的比较、分析介绍,为今后同类型船舶的建造提供有益的参考。 相似文献
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Zhi Heng 《Maritime Policy and Management》2018,45(1):125-139
This article discusses the proposed Kra Canal and its impacts on the tanker market from an economic perspective. We forecast tanker size distributions and further analyze the impacts of toll structures on tanker traffic. The forecast for tanker size distributions is based on distance savings for tankers as potential users of the Kra Canal. The database covers 105 busiest oil transport routes through the Strait of Malacca for the three-year period 2013–2015. Forecasts for individual routes are achieved using an autoregressive model. Two toll polices, namely the willingness-to-pay policy and the differential-pricing policy, are analyzed in order to maximize the annual toll income of the Kra Canal. The findings for the proposed Kra Canal will attract large vessels from the Strait of Malacca. An interesting finding is that the Kra Canal becomes more profitable during an unfavorable tanker market situation when the time-charter rate is low and fuel price is high. The article concludes with a policy that satisfies the goals of canal operator and government. 相似文献
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Jack Devanney 《WMU Journal of Maritime Affairs》2008,7(1):353-380
According to the CTX tanker casualty database, machinery failures are an important cause of tanker oil spillage. This paper argues that the current large (over 10,000 deadweight) tanker fleet is experiencing at least two full losses of power or steering per day, and probably more than ten. If this fleet were twin screw, properly implemented, this number would be cut by a factor of one thousand. At the same time, tanker low speed maneuverability would be improved dramatically. All this could be done for a net cost of less than that of the double hull. 相似文献
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J. E. Davies 《Maritime Policy and Management》2013,40(3):249-261
The simulations performed show that demand for quality tankers has to increase by 30% for a two-tier tanker market to emerge. The two-tier freight structure will only last for 3–5 years due to contracting induced by higher freight rates. This means that OPA does not by itself result in higher freight rates for tankers that comply with the requirements. If Western Europe also closes their trades to substandard tankers, a two-tier market emerges and quality tankers obtain a premium. The paper presents a simulation model for international tanker markets. The non-linear complementary equilibrium model solves for a sequence of static equilibria in segmented tanker freight markets, shipbuilding and scrapping markets. Freight markets are segmented according to quality requirements for tankers. The model specifies three tanker classes and one—quality tankers—can operate both market segments. 相似文献
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Siri Pettersen Strandenes 《Maritime Policy and Management》1999,26(3):249-264
The simulations performed show that demand for quality tankers has to increase by 30% for a two-tier tanker market to emerge. The two-tier freight structure will only last for 3-5 years due to contracting induced by higher freight rates. This means that OPA does not by itself result in higher freight rates for tankers that comply with the requirements. If Western Europe also closes their trades to substandard tankers, a two-tier market emerges and quality tankers obtain a premium. The paper presents a simulation model for international tanker markets. The non-linear complementary equilibrium model solves for a sequence of static equilibria in segmented tanker freight markets, shipbuilding and scrapping markets. Freight markets are segmented according to quality requirements for tankers. The model specifies three tanker classes and one quality tankers can operate both market segments. 相似文献
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本文通过对37300DWT这一特定船的结构设计方案进行分析,对于如何进行货舱结构布置及货舱结构强度校核,谈一些建议及体会。 相似文献
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