潜艇膳食设施的设计特点及发展趋势

介绍了我国潜艇膳食设施的主要发展历程,分析各个发展阶段存在的主要问题。阐述了潜艇膳食设计中的膳食和习惯特点,厨房设备配置特点,空间布局特点以及装饰特点,并提出了新型潜艇膳食设计的发展趋势。     

浅谈12缆三维地球物理深水勘探船的舾装设计

介绍了12缆三维地球物理深水勘探船舾装设计的主要特点,分别阐述了常规舾装设备和物探专业设备的技术状态,常规设备主要着重于因作业要求带来的常规设备特殊性布置和物探设备的系统性配备和布置,主要着重于本船的实际作业特点。     

版纳港监艇设计研究

阐述了版纳港监艇的主要要素、主要技术性能、模型试验、型线特征、总布置、结构特点等，并论述了本船设计特点。     

国外港口管理模式探讨及对我国港口体制改革的启示

分析了世界著名大港的典型管理模式,对其特点进行归纳和总结,得出地主港模式是目前国外主要实行的管理模式的结论。分析地主港的特点和优势,探索了地主港模式在我国实施的现状和前景及面临的主要问题。     

4850kW多用途远洋拖轮电站管理系统的设计

本文简要介绍了4850kW多用途远洋拖轮的主要特点,重点介绍了本船电站管理系统的设计及主要技术性能。     

美国潜艇水声试验场现状及启示

介绍了美国主要的水声试验场,分析了这些试验场的选址特点和主要测量设施,为我国水声试验场建设提供参照。     

探析外商对我国船舶配套业的直接投资

根据外商对我国船舶配套业的直接投资情况及特点,分析了形成该特点的主要原因,并进一步探讨了相应的外资战略和政策。     

楼庄子水库大坝安全监测设计

本文结合楼庄子水库工程坝体特点,依据土石坝安全监测规范,针对坝体结构、坝基深厚覆盖层等特点,主要论述了粘土心墙坝安全监测设计。主要包括设置监测仪器的目的、仪器的布置及采用仪器的类型。     

水下焊接技术研究与应用的新进展

综述了水下焊接技术与应用的新进展,介绍了在先进科学技术的推动下水下焊接发展的主要特点及其主要应用领域。     

舰船火灾的特点及安全预防

文中从消防角度简要分析了舰船火灾的特点,列举了导致舰船发生火灾的主要事故因素,并针对这些特点,提出舰船预防火灾的基本要求和措施。     

On the global ship hull bending energy in ship collisions

During ship collisions part of the kinetic energy of the involved vessels immediately prior to contact is absorbed as energy dissipated by crushing of the hull structures, by friction and by elastic energy. The purpose of this report is to present an estimate of the elastic energy that can be stored in elastic hull vibrations during a ship collision.When a ship side is strengthened in order to improve the crashworthiness it has been argued in the scientific literature that a non-trivial part of the energy released for structural deformation during the collision can be absorbed as elastic energy in global ship hull vibrations, such that with strong ship sides less energy has to be spent in crushing of the striking ship bow and/or the struck ship side.In normal ship–ship collision analyses both the striking and struck ship are usually considered as rigid bodies where structural crushing is confined to the impact location and where local and global bending vibration modes are neglected. That is, the structural deformation problem is considered quasi-static. In this paper a simple uniform free–free beam model is presented for estimating the energy transported into the global bending vibrations of the struck ship hull during ship–ship collisions. The striking ship is still considered as a rigid body. The local interaction between the two ships is modeled by a linear load–deflection relation.The analysis results for a simplified model of a struck coaster and of a large tanker show that the elastic energy absorbed by the struck ship normally is small and varies from 1 to 6% of the energy released for crushing. The energy stored as elastic global hull girder vibrations depends on the ship mass, the local stiffness of the side structure, and of the position of contact. The results also show that in case of highly strengthened ship sides the maximum global bending strains during collisions can lead to hull failure.     

令人注目的12 300t RO/RO船

12 30 0t货物滚装船是一艘被船东称之为具有 2 1世纪先进水平的“未来型”出口船舶。该船在设计中突出高速化、自动化和重型化等特点 ,代表了当今现代技术和机动灵活的设计思想 ,具有很强的超前意识。该船不仅可用于民用 ,而且军用价值也比较明显 ,其市场前景十分看好。     

The influence of route choice and operating conditions on fuel consumption and CO<Subscript>2</Subscript> emission of ships

The influence of various parameters, such as ship initial speed (full ahead and lower engine loads), loading condition, heading angle and weather conditions on ship fuel consumption and CO₂ emission is presented. A reliable methodology for estimating the attainable ship speed, fuel consumption and CO₂ emission in different sea states is described. The speed loss is calculated by taking into account the engine and propeller performance in actual seas as well as the mass inertia of the ship. The attainable ship speed is obtained as time series. Correlation of speed loss with sea states allows predictions of propulsive performance in actual seas. If the computation is used for weather routing purposes, values for various ship initial speed, loading conditions and heading angles for each realistic sea‐state must be provided. The voluntary speed loss is taken into account. The influence of the ship speed loss on various parameters such as fuel consumption and CO₂ emissions is presented. To illustrate the presented concept, the ship speed and CO₂ emissions in various routes of the Atlantic Ocean are calculated using representative environmental design data for the track of the routes where the ship will sail.     

由行政许可的规定谈船舶签证管理方式的改进

文中在介绍船舶签证行政许可性质来源的基础上,根据我国《行政许可法》对行政许可的有关规定,以及其他有关的法律文件,结合船舶签证管理现状,分析了船舶签证设定为行政许可事项存在的若干问题,提出了改进船舶签证管理方式的建议,并阐述了船舶签证由行政许可审批改为行政报备管理方式的必要性和可行性。     

船舶航行数值模拟在水运工程的应用

文章回顾总结了船舶航行数值模拟在水运工程中的应用现状,讨论了不同自然条件对船舶航行的影响以及行船之间的相互影响,并介绍了船舶航行模拟软件Dynasim.为论证我国南方港口设计中某一泊位的通航安全,利用该软件模拟了多种船舶在不同风、浪、流以及船舶装载等条件下的航迹线,讨论了两船之间的追越和相遇时彼此的影响.通过具体的船舶...     

论船舶安全与船舶保安的关系

探讨了船舶安全威胁、船舶保安威胁的种类，以及船舶安全与船舶保安的关系。船舶安全管理经验对实施船舶保安具有积极的作用；船舶保安措施的落实，对提高船舶安全管理水平具有深远的影响。     

小型渔政船线型及附体设计优化

选取某近海小型渔政船典型船型,研究艏艉线型和附体对船舶阻力性能的影响。通过对线型、船型系数以及舭龙骨、压浪板、呆木等常规附体对小型渔政船航行性能的影响进行数值模拟分析,优化船舶线型,针对小型渔政船的功能需求选取合适的附体组合形式,并通过实船运行验证优化后的渔政船航行性能有所改善,达到预期目标,可为同型船舶设计提供参考依据。     

基于MAXSURF软件的中型邮船大倾角稳性校核

大倾角稳性对于中型邮船的航行安全至关重要。以52 000 t中型维京邮船为研究对象,论述中型邮船稳性理论。基于MAXSURF软件对该型船大倾角稳性进行校核,并分析波浪对该型船稳性的影响。结果表明,该型船稳性满足规范要求,可保证航行安全。研究结果可为后续中型邮船稳性的计算与分析提供一定的参考。     

大陆与台湾通航的客船船型初步分析

分析论证适用于大陆和台湾通航的客船船型。首先预测未来几年台湾与大陆之间往来的客流量及其流向 ,提出拟开辟台—闽间的海峡航线和基隆—上海航线。针对台闽间的海峡航线 ,在列举台湾海峡历年风浪情况的基础上 ,在作技术性能和经济效益综合评估后 ,建议采用 6种复合型高速船型。接着就 6种船型作营运经济估算及其排序 ,作变客位、车位的比较 ,变航速的比较 ,以及与常规客船船型的比较。结论是 :从技术和经济性角度考虑 ,双体气垫船和双体穿浪船较好 ;从客流量和货载量考虑 ,高速客船和常规客船按 5 0 0客位、4 5 - 10 0辆车位设计已能满足要求。从航速考虑 ,宜采用 4 0kn的客船。最后还就适用于基隆—上海航线的船型作简略探讨 ,提出宜采用集装箱—客船和客—滚装船     

船舶在波浪中航行时的安全操纵

船舶在波浪中航行,纯稳性丧失、参数激振和横甩是造成船舶倾覆的主要原因。针对波长与船长、波高与波长、波与船的波舷角三者对船舶稳性的影响进行讨论,揭示了船舶在波浪中航行时的稳性变化规律,提出了应合理地选择船舶的航行姿态、谨慎用舵等操船建议,保证船舶的航行安全。