共查询到20条相似文献,搜索用时 15 毫秒
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Wayne K. Talley 《Maritime Policy and Management》2001,28(2):175-186
This study investigates determinants of the vessel, cargo, and other-property damage costs of bulk barge accidents in US inland waterways. Tobit estimation of a three-equation recursive model suggests that, in bulk barge accidents: (1) vessel damage cost is greater for collision, fire/explosion, and material/equipment failure accidents than for groundings; (2) cargo damage cost is greater at night and when the weather is foggy and increases with barge age; and (3) otherproperty damage cost is greater for multi-vessel accidents, but decreases with barge size. A dollar of vessel damage cost increases other-property damage cost by $1.38, while a dollar of cargo damage cost increases this cost by $6.90. An important result for formulating bulk barge accident cost-reduction policies is that a given determinant might have a negative effect on one type of damage cost but a positive effect on another. 相似文献
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针对500 t舱口货驳因载重吨位相对较小的问题,提出了船舶改造方案,介绍了船舶结构改造设计的主要工艺要求。经船舶实际运营,500 t舱口货驳的改造是成功的。 相似文献
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主要介绍了60m多用途工程驳的主要设计依据和总体布置、船舶的结构形式、各种状态下的稳性以及机电主要设备布置情况等。该船由中国船级社进行图纸审查和建造检验,为国内航行船舶。 相似文献
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LUO Wei ZHANG Pan 《船舶与海洋工程学报》2007,6(4):44-47
A new type of self-propelled barge was designed specifically for use on the Chishui River. This paper presents experimental results of its performance from tests in water of different depths,while bearing different loads. For test purposes,one of the best self-propelled barges from the Chishui River was used as a performance reference. The comparison showed that the new design has better maneuvering performance. 相似文献
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根据甬港驳1006的2次改装结果,以及船舶航速的估算,从阻力、推进性能和船体振动方面分析了该船舶第1次改装不成功的原因和第2次改装的合理性,阐明了在船舶设计和改装中船舶艉轴支撑形式和螺旋桨有效配合的重要性。 相似文献
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参照中国船级社《船体结构强度直接计算指南》,对航行于中国沿海海域的77.15m甲板机动货驳的总纵强度进行计算,静水弯矩利用澳大利亚的M axsurf软件进行计算。波浪弯矩根据二维S、T、F线性切片理论进行计算。 相似文献
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载货量是指船舶所允许装载货物的最大重量.科学加载是从实际情况出发,执行与运用船舶规范,通过技术核算,适度挖掘船舶本身原有的潜力,在确保航行安全和适航条件的前提下,改动载重线,增加载货量,提高船舶运输能力,以取得较好的经济效益. 相似文献
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This paper studies the springing response of a flexible floating barge under an oblique wave. A time domain Rankine panel
method was used to represent fluid motion surrounding a flexible seagoing vessel, and a finite element method was used for
structural response. For accurate prediction of the structural response under an oblique wave, special attention was given
to the structural model, such as the effect of warping distortion and bending-torsion coupling. The Vlasov assumption was
followed for a deformable beam element to take into account the effect of warping distortion so that the cross section of
the beam deforms out of its original plane without changing its cross-section contour. The coupled equation for both the fluid
and structural domain was solved by using the implicit iterative method. A fixed point iteration with a relaxation scheme
was employed in this study with the aid of the Aitken δ2 process seeking acceleration of solution convergence. Accuracy of a developed computer program was verified through the comparison
with experimental work done by Remy et al. (Experimental and numerical study of the wave response of a flexible barge, Hydroelasticity in Marine Technology, Wuxi, 2006) resulting in good correspondence between the two results. 相似文献
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近年来随着海上工程项目的增多,人们对半潜驳的需求也日益增加,然而要使半潜驳真正发挥其部分潜入水中以便承载结构物的作用,合理有效的锚泊定位是不可缺少的一部分。该文详细介绍了“LUCKY AN-GEL”半潜驳的锚泊设计过程及分析方法,该方法不仅适用于半潜驳,也可以应用于类似的工程船。 相似文献
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导管架下水驳船的“浮托法”安装改造研究 总被引:1,自引:0,他引:1
导管架下水驳船是实施大型深水导管架下水的必要装备。“浮托法”安装模式是大型平台组块海上安装的发展趋势。对“海洋石油229”号导管架下水驳船“浮托法”安装改造前、后的总体性能进行了对比分析。 相似文献
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1改建背景
近年来,运输船舶数量增幅较快,且向大吨位发展.相对于此,货物运输总量却增加缓慢,运力大于运量的矛盾日显突出.矛盾的加剧直接导致货物运价持续低迷,加之高价位燃油和过长的运输周期等客观因素共存,可以想象水运企业运作的困苦和艰辛.江苏省运河航运有限公司为适应水运市场求生存、谋发展的需要,充分挖掘企业原有运输船舶的潜力,先期对90年代建造的、船龄较短的500t级货驳进行技术改建,以通过较低的投入,使其载重吨位有明显的增加,从而获得较大的经济效益.为此,特邀请江苏省船舶设计研究所、淮安市船舶检验局的部分同志与该公司的有关领导及工程技术人员共同磋商船舶改建方案. 相似文献
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