编队作战需求下舰船修理周期结构的优化

舰船全寿命期内的部署和修理活动需要在其修理周期结构的指导下进行,而编队的使用则需要编队内各舰艇的修理周期结构的相互配合,从而使编队拥有更高的部署能力。文章建立了编队修理周期结构的优化模型,考虑了同一舰级下舰艇相互代替使用的情况,更能真实反映编队的部署和修理情况,采用遗传算法对编队的部署能力进行优化分析,实例证明优化后可以显著提高编队的部署能力,为进一步研究编队的部署维修奠定了基础,同时在单舰的修理周期结构上加上了编队使用需求这一约束条件,拓展了研究舰船修理周期结构的思路。     

航母编队区域防空部署研究

文章研究了航母编队的防空舰艇配置距离在区域防空部署中的应用,在考虑舰载防空导弹的性能参数和满足拦截要求的最小拦截纵深基础上,对防空舰艇与航母之间的配置距离与掩护角的关系进行量化分析,建立了防空舰艇与航母之间的掩护关系模型,并进一步研究了目标的进人角与拦截纵深的关系和航母编队的防空配置需求。经理论分析和实例说明,该模型对舰艇编队的区域防空部署和指挥决策以及要地防空部署等其它地空导弹部署具有一定的参考意义。     

大型舰艇编队装备维修保障能力评估及仿真研究

大型舰艇编队装备维修保障力量的实施,关系到我国海军实力扩充和突破的时间点,也是大型舰艇编队建设前期不能绕开的关键步骤.论文立足于保障大型舰艇编队装备遂行战斗任务的目标,选取装备可用性来评估大型舰艇编队的装备维修保障能力.在构建装备可用性指标体系的基础上,分析大型舰艇编队的特点,建立大型舰艇编队装备可用性模型,采用试探性建模与分析评估方法,仿真不同任务下的装备可用性,根据计算结果,总结出可用的优化维修策略,能够在保证大型舰艇编队装备运行任务的同时,提供更多时间和精力用于战备训练,优化装备维修保障性能.     

编队防空导弹攻击火力分配优化模型

海上兵力优化分配是编队防空作战中的重要问题。利用对策论和线性规划等理论和方法，研究了编队防空导弹兵力分配问题，建立了舰艇编队防空突击概率模型、编队防空导弹兵力分配优化模型及其解法。给出了一个实例，并用线性规划方法得到了最优混合策略。此方法为舰艇编队防空导弹部署优化提供了一个基本思路。     

考虑修理结构的舰船部署能力仿真北大核心CSCD

海上环境日益复杂,不仅要关心单艘舰船的部署能力,更要关心多艘舰船可同时部署的能力,以满足不同军事任务的用船需求。针对多艘同型舰船的部署能力问题,分析舰船入役时机、计划修理间隔期及修期控制等因素对同型舰船部署能力的影响,并从军事需求出发,提出多艘同型舰船部署能力的度量指标体系。在此基础上,建立多艘同型舰船部署能力的数学模型,给出同型舰船部署能力的仿真算法,较好地解决了同型舰船部署能力计算困难的问题。最后,通过仿真分析发现,舰船入役时机、计划修理间隔期及修期控制对同型舰船的部署能力具有较大影响,尤其是随着舰船计划修理间隔期的延长,其部署能力呈S形增加,对优化舰船修理结构,提高同型舰船部署能力,降低舰船维修保障费用具有重要意义。     

考虑修理结构的舰船部署能力仿真

海上环境日益复杂,不仅要关心单艘舰船的部署能力,更要关心多艘舰船可同时部署的能力,以满足不同军事任务的用船需求。针对多艘同型舰船的部署能力问题,分析舰船入役时机、计划修理间隔期及修期控制等因素对同型舰船部署能力的影响,并从军事需求出发,提出多艘同型舰船部署能力的度量指标体系。在此基础上,建立多艘同型舰船部署能力的数学模型,给出同型舰船部署能力的仿真算法,较好地解决了同型舰船部署能力计算困难的问题。最后,通过仿真分析发现,舰船入役时机、计划修理间隔期及修期控制对同型舰船的部署能力具有较大影响,尤其是随着舰船计划修理间隔期的延长,其部署能力呈S形增加,对优化舰船修理结构,提高同型舰船部署能力,降低舰船维修保障费用具有重要意义。     

舰艇编队协同防空作战效能评估研究

在分析了舰艇编队协同防空作战特点的基础上,利用层次分析法确立了舰艇编队协同防空作战效能评估指标体系,建立了舰艇编队协同防空作战效能的评估模型。运用层次分析法确定各因素的权重,应用模糊综合评判的方法对模型进行定量分析,通过分析结果,说明了模型的有效性。     

自适应进化策略的舰船全封闭式桅杆动力优化

随着海军装备技术的发展,舰艇的隐身性在军事侦察等领域的作用越来越重要,作为水面舰艇的主要雷达信号反射源,舰船全封闭式桅杆系统的结构与动力优化引起了研究人员的广泛重视。本文系统介绍舰船全封闭式桅杆系统的结构与功能,并结合自适应进化策略和有限元分析算法,建立全封闭式桅杆系统的优化模型,对舰船全封闭式桅杆系统的动力与结构进行优化。     

舰船编队可靠性建模评估方法研究

针对舰船编队网络,分析了其网络通讯的特点,归纳出影响舰船编队网络可靠性的12个因素,给出了各种因素的重要度。建立了评价舰船编队网络可靠性模型,并且应用AHP法评价了舰船编队网络可靠性,确定了每种影响因素的比重,分析出影响舰船编队网络可靠性的2个关键因素。证明了应用AHP法进行网络可靠性评价的可行性。     

舰船装备修理合同优化研究

舰船装备维修费是舰船装备全寿命周期费用的重要组成部分,而且所占比例有日益增加的趋势,因而作为决定舰船装备修理价格关键因素的舰船装备修理合同的优化问题必须予以重视.从舰船装备修理合同的基本概念入手,分析舰船修理合同优化的主要内容,并对合同优化的环境建设提出建议,旨在通过合同的优化,提高舰船装备修理经费的军事经济效益和舰船保障能力.     

Fleet deployment optimization for liner shipping: an integer programming model

Extending and improving an earlier work of the second author, an Integer Programming (IP) model is developed to minimize the operating and lay-up costs for a fleet of liner ships operating on various routes. The IP model determines the optimal deployment of an existing fleet, given route, service, charter, and compatibility constraints. Two examples are worked with extensive actual data provided by Flota Mercante Grancolombiana (FMG). The optimal deployment is solved for their existing ship and service requirements and results and conclusions are given.     

Fleet deployment optimization for liner shipping Part 2. Implementation and results

We use linear programming (LP) for solving the problem of the optimal deployment of an existing fleet of multipurpose or fully containerized ships, among a given set of routes, including information for lay-up time, if any, and type and number of extra ships to charter, based on a detailed and realistic model for the calculation of the operating costs of all the ship types in every route and on a suitable LP formulation developed in earlier work of the authors. The optimization model is also applicable to the problem of finding the best fleet compostion and deployment, in a given set of trade routes, which may be the case when a shipping company is considering new or modified services, or a renewal of the existing fleet. In addition, two promising mixed linear-integer programming formulations are suggested.     

Optimal reefer slot conversion for container freight transportation

Given a fleet of container ships of varying capacity, a cost-efficient approach for improving fleet utilization and reducing the number of delayed containers is to optimize the sequence of container ships in a given string, a problem which belongs to the large ship-deployment class. A string sequence with ‘uniformly’ distributed ship capacity is more likely to accommodate a random container shipment demand. The number of one’s total ship slots acts as a gauge of the capacity of the container ships. Meanwhile, there are two types of ship slots: dry slots and reefer slots. A dry slot only accommodates a dry container, while a reefer slot can accommodate either a dry or a reefer container. The numbers of dry and reefer slots for ships in a string are different. Therefore, in this study, we propose a model that considers both dry and reefer slots and use it to elucidate the optimal ship-deployment sequence. The objective is to minimize the delay of dry and reefer containers when the demand is uncertain. Furthermore, based on the optimal sequence deduced, the study also investigates the need to convert some dry slots to reefer slots for the container ships.     

船体结构最优风险评估维护计划（英文）

Various structures such as marine structures age over time. In order to always maintain safety conditions, maintenance processes including inspection and repair should be implemented on them. Corrosion and fatigue cracks are two main factors that reduce the ultimate strength of the ship's hull girder over time and thus increase the probability and risk of failure. At the time of inspection,the structural conditions must be checked so that, if necessary, the required repairs can be done on it. The main objective of this paper is to provide optimized maintenance plans of the ship structure based on probabilistic concepts with regard to corrosion and fatigue cracks. Maintenance activities increase the operational costs of ships; therefore, it is advisable to inspect and repair in the optimal times. Optimal maintenance planning of the ship structure can be conducted by formulating and solving a multi-objective optimization problem. The use of risk as a structural performance indicator has become more common in recent years. The objective functions of the optimization problem include minimizing the structure's lifecycle maintenance costs, including inspection and repair costs, and also minimizing the maximum risk of structural failure during the ship's life. In the following,to achieve better responses, reliability index has been added to the problem as the third objective function. The multi-objective optimization problem is solved using genetic algorithms. The proposed risk-based approach is applied to the hull structure of a tanker ship.     

潜艇承修工厂振动噪声控制条件建设方案设计

随着海军转型建设和新军事变革的不断推进,舰船装备综合保障工作要与新时期海军的使命任务相适应。舰艇主承修工厂修理振动噪声控制条件建设是决定舰艇维修保障过程中,声隐身性能能否保持在较高水平的重要因素。以舰艇作战需求为牵引,以修理工厂振动噪声控制能力建设为重点,通过控制修理工厂装设备修理过程中的振动噪声性能,使维修后的舰船声隐身性能能够恢复到较好水平。     

单体小水线面水翼复合型高速船应用前景探讨

该文简要介绍了单体小水线面水翼复合型高速船（HYSWAS）国内外研究概况，HYSWAS与其它高性能船比较具有航速高、耐波性好、可大型化的优点。通过海峡客运船队的论证和东亚超高速货运航线经济性分析，提出了HYSWAS用作高速客渡船和小型、高速集装箱船，具有良好的应用前景。     

基于决策树的船舶设备维修级别分析

为科学安排船舶维修级别,提高船舶的运用效率,降低船舶维修费用,借鉴装备维修级别分析方法,引入概率理论,并以维修费用期望值最小为目标函数,建立了船舶维修级别经济性分析决策树模型.基于该决策树模型,设计了不同级别的维修费用与维修成功率之间的关系图,直观表达最佳维修级别范围.通过一个简化维修算例,说明使用该方法确定船舶设备维修级别的基本原理及其合理性.     

Technology Choice and Productivity in the Turkish merchant fleet in the last two decades

Sea transportion has become a significant sector in Turkey since the early 1980s. It has developed due to the domestic subsidies provided and also because of the favourable conjuncture in the world ship Sale and Purchase markets in this period. In the 1990s this sector has started to gain some self-confidence and has completed the 'Infant Inudustry' period. However, bacause its structure is open to international competition, the protection policies available in the 1980s have been found to be inadequate. The capacity of the Turkish merchant fleet has expanded to a considerable extent in the last two decades, but it is comprised of over-aged and old fashioned ships built using outdated technology. and a sudden and cat-astrophic crisis could be approaching. A precaution in the long run could be to have special types of ships carrying convenient loads at minimum costs.     

船舶动态信息采集与传输关键技术研究

现代化智能型的船舶运输控制系统包括船舶信息管理与控制、船舶动态信息采集与传输、船队运行综合调度等三大模块。船舶动态信息采集与传输是该系统的关键部分。首先介绍船舶动态管理系统选用的软件，系统的特点和功能，并解析系统的结构。着重详尽描述船舶动态信息传输的工作原理和过程。最后介绍船舶管理信息系统及其船舶动态调度的情况。本研究成果为实施船舶的有效调度管理，为实现船岸一体化控制管理奠定基础。