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1.
船体构件编码探讨   总被引:1,自引:0,他引:1  
作者结合本厂的生产管理模式,船舶产品结构的特点和电子计算机设备能力,编制了一套船体结构构件编码,本文介绍船体分段,构件及其附件,以及构件加工工序的编码。  相似文献   

2.
船体舯剖面结构最优化设计方法及其应用   总被引:2,自引:0,他引:2  
在船体肿剖面结构设计中,构件的布置,剖面尺寸、板厚、构件数目等都是取整数或按标准选取规格型号,因此,在最优化设计中,设计变量大部分是整数或者规格型号离散型变量。本文在船体结构离散变量最优化设计方法的基础上,作了一些必要的改进与增删。用该离散型复全形法对船体舯剖机面结构的布置,构件尺寸、板厚的确定先进进行了优化设计,取得了很好效果,并编制制了计算机程序(YHZPM),可在微机上运行。它对结构方案设计  相似文献   

3.
通过调查研究目前码头采用的混凝土靠船构件应用和施工过程中存在的问题,针对全装配式高桩码头结构的设计需求,将混凝土靠船构件与前沿护舷功能合并,提出一种新型密闭式钢质靠船构件及相应的耐久性措施和结构健康监测方案。该结构由面板、背板和纵横筋板组成并采用密封结构,直接通过预埋螺栓安装于码头前沿,克服了靠船构件安装施工难点,有利于工程施工安全,提高施工效率。  相似文献   

4.
本文叙述了已在一般机械制造中经过实践的成组技术在船舶制造中的应用,其中包括构件分类和编码系统的研制。对分类系统在编制船体构件生产信息数据库时的用途作了说明。还讨论了如何利用分类系统去阐明生产车间的要求和生产信息以及使用数据库去调查生产中的疑难,并辅助车间的生产计划和生产控制。  相似文献   

5.
介绍白玉兰环保广场(北楼)上部结构设计,其内容包括了结构超限情况、结构选型、薄弱部位的构件设计、结构分析。  相似文献   

6.
中型集装箱船结构设计模块化研究   总被引:2,自引:1,他引:1  
介绍了系列集装箱船结构模块设计的方法。将船体构件分为标准构件与可变构件两工对可变构件进行规范计算,可提供6艘集装箱听中剖面资料。  相似文献   

7.
介绍一种基于数字化加工的装配式桩基码头预制构件生产及管理方法。将BIM技术和数字化生产相结合,将整个构件BIM深化设计信息通过数字化的手段传递给构件的预制生产阶段,并基于物联网和互联网将RFID技术、BIM与构件管理系统整合,从而实现数字化、信息化、可视化的装配式桩基码头构件制造与加工管理,确保项目全生命周期预制构件信息传递的准确、及时和有效。  相似文献   

8.
通过生产设计在我厂船体建造中的应用,阐述了生产设计的必要性及其主要内容,并较详细地介绍了生产设计中合理编码的原则、方法和符号。  相似文献   

9.
大型油船结构优化设计研究进展   总被引:1,自引:0,他引:1  
综述了大型油船结构设计的特点;从中剖面纵向构件优化设计、横向构件优化设计及横舱壁结构优化设计三方面评述了国内油船结构优化设计的现状;对国外船舶结构优化设计的进展也作了评述;最后指出大型油船结构优化设计尚需进一步研究的若干问题。  相似文献   

10.
扈朝晖 《水运工程》2000,(8):84-85,88
以扩建工程中工作船码头靠船构件为例,介绍型钢混凝土结构码头靠船构件设计中的应用及结构特点。  相似文献   

11.
本文应用结构可靠性分析方法,分别以船体梁和船体纵向加筋板极限承载能力为失效模式,对船体结构进行了安全评估和可靠性设计。应用所开发的新的改进可靠性计算方法,计算了基本物理量的不确定性对船体结构极限强度函数统计特征的影响,同时结合所开发的用于直接估算船体梁和加筋板极限强度的荛用计算方法,确定出不同船体结构的失效概率和设计目标安全指数,推导了局部安全因子,可以进行船体结构的可靠性设计与再评估。  相似文献   

12.
Selection of the “best” or “optimum” engineering design has always been a major concern of designers. Reduction of hull weight is the most important aim in the structural design of many ship types. But the ability of designers to produce optimal designs of ship structures is severely limited by the calculation techniques available for this task. Complete definition of the optimal structural design requires formulation of size–topology–shape–material optimization task unifying optimization problems from four areas and effective solution of the problem. So far a significant progress towards solution of this problem has not been achieved. In other hand in recent years attempts have been made to apply genetic algorithm (GA) optimization techniques to design of ship structures. An objective of the paper was to create a computer code and investigate a possibility of simultaneous optimization of both topology and scantlings of structural elements of large spatial sections of ships using GA. In the paper GA is applied to solve the problem of weight minimization of a high speed vehicle-passenger catamaran structure with several design variables as dimensions of the plate thickness, longitudinal stiffeners and transverse frames and spacing between longitudinals and transversal members. Results of numerical experiments obtained using the code are presented. They show that GA can be an efficient optimization tool for simultaneous design of topology and sizing high speed craft structures.  相似文献   

13.
张伟  陈磊 《船舶》2015,(1):54-58
目前众多三维设计软件在国内船舶生产设计中的应用已相当成熟,而在基本设计和详细设计中的应用尚处于摸索和发展阶段。NAPA STEEL是芬兰NAPA公司开发的船舶设计软件包中的结构设计模块。文章利用NAPA STEEL对2艘万箱级集装箱船进行结构辅助设计,在基本设计和详细设计阶段中参与完成了二维出图、质量统计、船级社软件接口及有限元输出的任务,探索了利用NAPA STEEL软件对大型集装箱船进行参数化建模以完成结构辅助设计的方法,并总结出一些宝贵的经验。  相似文献   

14.
采矿船于船舯处有大开口月池贯穿船底用于矿物开采,并且月池前后均匀分布4个矿物储存舱,采矿船兼有矿砂船和钻井船的共性。矿砂船横剖面形式采用方形截面设计,便于舱内矿物海上输入输出转运作业。舱段有限元相对于全船有限元更加方便快捷,航行状态下采矿船内、外载荷与矿砂船类似。因此对于航行状态,该文按照CCS船舶规范,从结构型式、模型范围、工况选取及参数设置等方面考量,并应用CCS-HCSR-TOOLS软件进行舱段有限元强度分析;根据计算分析结果得出采矿船前期设计需要特别关注的区域,为采矿船结构设计和强度分析提供思路和方向。  相似文献   

15.
大型升船机承载能力大,若卷筒与主轴仍采用常规连接形式很难满足要求。分析了卷筒与主轴的各种连接结构,针对景洪升船机开发一种新的连接技术,解决了加工和装配的工艺难题。通过理论计算确定结构尺寸,成功完成了16件大型卷筒装置的设计生产加工。  相似文献   

16.
This work analyzes the influence of ship motion and deformation on the structural design of decks to support production plants in floating production, storage and offloading units (FPSOs). These decks are space frames with lengths ranging from 30 to 100 mr, with a variable number of rigid supports linked to the ship hull. The deck and ship hull are modeled together for naval and structural analysis. A global, coupled analysis is performed considering the deck and ship structures; sea loads are evaluated by means of probabilistic methods.  相似文献   

17.
It has long been recognized that the compressive behavior of primary ship structural components plays a vital role in the design of surface ship hulls. This is equally as true for the new advanced double hull concept as it is for the more conventional surface ship configurations. What is different, however, is the nature of the structural mechanics phenomena which must be addressed due to the double hull's more radical departure from conventional design and construction practices. With increasing interest and attention being shown in this new concept, the David Taylor Model Basin has over the past few years initiated a number of research efforts which have and are continuing to address various aspects of the behavior of double hulls and their components to primary compressive loadings. These studies have as their ultimate goal the development of practical, user oriented design methods for double hull structure and as such currently focus on more approximate, rather than mathematically rigorous, approaches to the various structural phenomena being considered. This paper is in essence a progress report on a selected number of these efforts and describes the results achieved to date as well as the ongoing efforts and those planned for the future. This report focuses primarily on three recent studies: (1) a preliminary look at the relative significance of local versus general instability failure of double hull structure; (2) small scale experimental analysis of double hull sections using rigid vinyl modelling; and (3) the application of beam-on-elastic-foundation analysis methods for high aspect stiffened plates as it relates to double hull structure. In addition to these major topics, the report also includes a brief discussion of other ongoing and planned efforts relevant to the advanced double hull.  相似文献   

18.
With increases in ship size and speed, shipboard vibration becomes a significant concern in the design and construction of vessels. Excessive ship vibration is to be avoided for passenger comfort and crew habitability. In addition to the undesired effects on humans, excessive ship vibration may result in the fatigue failure of local structural members or malfunctioning of machinery and equipment. The propeller induces fluctuating pressure on the surface of the hull, which induces vibration in the hull structure. These pressure pulses acting on the ship hull surface above the propeller are the predominant factor for vibrations of ship structures are taken as excitation forces for forced vibration analysis. Ship structures are complex and may be analyzed after idealization of the structure. Several simplifying assumptions are made in the finite element idealization of the hull structure. In this study, a three-dimensional finite element model representing the entire ship hull, including the deckhouse and machinery propulsion system, has been developed using solid modeling software for local and global vibration analyses. Vibration analyses have been conducted under two conditions: free–free (dry) and in-water (wet). The wet analysis has been implemented using acoustic elements. The total damping associated with overall ship hull structure vibration has been considered as a combination of the several damping components. As a result of the global ship free vibration analysis, global natural frequencies and mode shapes have been determined. Moreover, the responses of local ship structures have been determined as a result of the propeller-induced forced vibration analysis.  相似文献   

19.
介绍了9000DWT油船的主要设计要求和总体布置、船舶的型线特点、结构形式、建造特点等。本船由法国BV船级社进行图纸审查和建造检验。经过实船的试验、使用,本船各项指标均满足设计要求,目前已正常运营近1年的时间。  相似文献   

20.
最新特种用途船(SPS)安全规则在2008年通过,替代了原来A.534(13)决议通过的SPS规则。通过某型专用引航员船的实例计算,比较分析了新老规则对分舱稳性要求的不同。发现两者的计算思路不同,相应的分舱设计的特点更不同。新规则进一步保障了船舶的安全,同时带来了分舱设计灵活多变的特点,开辟了特种用途船分舱设计的新格局。  相似文献   

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