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基于STEP标准的船舶工程数据共享研究 总被引:1,自引:0,他引:1
本文介绍了在船舶设计和船舶工程研究等多个应用系统中,基于STEP标准的集成产品数据共享环境的基本结构。集成产品信息模型是集成产品数据共享环境的模型,其中目前有的信息模型STEP标准还不能支持,如:CFD,需要从几个相关的应用协议和集成资源扩展而来。本文最后从共享产品数据库的建立和访问两方面概要阐述了信息共享的实现。 相似文献
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本文介绍了STEP标准应用协议船舶管系(AP127)的基本框架及基于AP217的STEP 文件前后处理器的设计原理,通过STEP文件实现了三维管系图在 AutoCAD 12.0和 Pro/ ENGINEER两个不同CAD系统之间的产品数据交换。 相似文献
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计算机辅助船舶概念设计系统研究 总被引:6,自引:0,他引:6
文章讨论了产品概念设计与创新的关系,概念设计与VPD和QFD的关系、船舶概念设计涵义和产品信息建模的主要特征及其与STEP、多媒体等标准的关系。最后叙述了船舶轮机舱概念设计的研制。 相似文献
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The selection of marine equipment is a time-consuming process for a ship outfitting designer. The inefficiency originates from the paper-based exchange of design information between shipyards and equipment manufacturers. We propose a method to exchange equipment models for electronic commerce. Shipyard practices were investigated to find out how the outfitting CAD library is being used. We also surveyed international standards for the exchange of digital equipment models, and analyzed the macroparametric methodology. We propose a hybrid method to represent the geometric information using STEP AP203 or the macroparametric method. The nongeometric information is defined according to the Parts Library (PLIB) standard. We implement a pilot system and test it with a ship design data set. The equipment model proposed can be used in the design process with heterogeneous shipbuilding CAD systems. The equipment model can improve the design and purchase process in shipyards. 相似文献
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增材制造(3D打印)技术是继等材制造和减材制造之后,近年来快速发展的具有数字化智能制造特征的先进制造技术。增材制造技术凭借其逐点控制、快速自由成形等先进制造理念,在船舶制造领域逐步获得了推广应用。这种先进制造技术和传统制造方法相结合,极大地促进了船舶制造技术的发展。本文主要介绍了增材制造技术分类及应用,分析了增材制造技术在船舶辅助设计、船体建造、船舶配套设施制造、船舶专用装备制造、船舶再制造和实时维修、船舶结构-功能一体化材料制备及构件制造等领域的应用及前景。 相似文献
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为了在船舶初步设计阶段有效积累、管理、共享和使用各种分布的信息数据,本文在国内外相关研究的基础上提出了一种基于PDM的船舶初步设计管理系统,阐述了其体系结构、应用开发过程和相关功能,为实现船舶全生命周期内的产品数据管理打下了基础。 相似文献
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介绍了关于虚拟产品开发(VPD)技术的模拟和虚拟现实、虚拟产品数据和STEP标准、并行工程的CAX集成系统和虚拟产品开发系统及技术、VPD技术应用层次等概念。在分析了VPD技术在国内外舰船建造中应用的情况后,提出了促进VPD技术在我国舰船建造中的应用建议。 相似文献
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磁流变弹性体是一种新型的智能材料,由微米级的羰基铁粉和聚合物合成.由于它具有弹性模量可调、无需封装、稳定性好、响应快等优点,已被广泛应用于机械振动控制等领域.文中针对船舶推进轴系纵振动力学特性,提出一种固有频率可调的磁流变弹性体动力吸振器用于轴系纵振控制.首先理论分析了安装动力吸振器的推进轴系的动力学模型,其次对动力吸振器进行了移频特性试验,并在1:4的船舶轴系缩比模型上进行了变转速工况下吸振效果试验.实验结果表明,该吸振器具有12.3 Hz的移频范围,并且在不同轴系工作转速下相比于被动式吸振器均有更好的吸振效果. 相似文献
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Calwin S. Parthibaraj PL.K. Palaniappan Angappa Gunasekaran 《Maritime Policy and Management》2017,44(6):705-726
The support of containerization to trade development demands an efficient solution method for the container loading problem in order to reduce shipment and handling time. Hence, the stowage planning of containers is critical to provide speedy delivery of resources from the area of supply to the area of demand. Moreover, information on container terminal activities, structure of ship, and characteristics of containers is distributed among stowage planners. This information imposes constraints, and so the master bay plan problem (MBPP) becomes NP-hard. Therefore, a multi-agent systems (MAS) methodology is designed to effectively communicate the information and solve the MBPP sustainably. In the designed MAS methodology, an information exchange system (IES) is created for stowage planners to bid for ship slots in each experimental iterative combinatorial auction (ICA) market. The winner in the ICA experiments is provided with the ship slots, and the entire bay plan is prepared. Further, the ship-turnaround time is validated using the data obtained from the benchmark problem. 相似文献
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在构建舰船辅机协同设计多智能体(Multi-Agent System,简写为MAS)过程中,各Agent之间存在某种内在的冲突、联系和规律。为了有效地发现和消解Agent设计需求和控制规律,引入智能控制解决方法和数据网格服务技术,它能为舰船辅机产品协同设计MAS系统的构建提供技术保障。提出了基于模糊灰色理论的冲突解决控制模型。建立了模糊理论和灰色关联算法的冲突消解模型,目标是在舰船辅机协同设计MAS系统中,得出所有灰色关联度数值大于预定临界值的分类规则及设计结果,以便控制未来趋势和进行规划。最后用舰船辅机-船用锅炉选型MAS设计控制归类规律作为算例,验证了算法的合理性。 相似文献
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[Objective]To simplify the ship modeling process and improve modeling efficiency, this paper proposes a method for rapidly implementing hull model creation based on hull line drawing.[Methods]Using the CATIA platform, this method adopts the component application architecture (CAA) development tool for secondary development. First, by reading the geometry elements and label information of the hull lines in a drawing, the transformation of the offset points from 2D to 3D is realized. On this basis, the creation of the hull lines, stern and bow is completed, and a 3D wireframe model obtained. Finally, the hull 3D modeling is completed in conjunction with the CATIA native surface creation command. The stability and reliability verification of the developed type value extraction and bow generation program is then carried out via application analysis.[Results]The results show that the compiled program can realize the automatic creation of offset points, transverse lines, waterlines, profile lines and other boundary lines except the top line of the wall, and the centerline and tangent lines created by the bow generator are easily modified and simple for users to operate. [Conclusions]The verification results show that the method of a creating hull model using "Generative Shape Design" and "Drafting" with the hull line drawing as the data input is stable, reliable and able to realize rapid hull modeling, giving it certain practical value. © The Author(s) 2022. 相似文献
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基于XML的船舶产品信息集成环境研究 总被引:1,自引:0,他引:1
船舶设计制造是一个众多单位利用不同工具来同时实现的系统工程,在这个过程中,必然产生大量不同结构不同介质的数据,为了解决数据交换问题,利用XML技术,提出了一个基于STEP标准的船舶产品信息集成环境架构。 相似文献
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基于虚拟现实的船舶并行设计 总被引:1,自引:0,他引:1
虚拟现实技术是一项新型的计算机图形技术,虚拟现实技术能在计算机上创造出逼真的仿真效果,对现实行为进行计算机模拟.并行设计是一种从整体考虑产品生命周期的设计方法.将虚拟现实技术应用于并行设计是工程设计的一大突破.文中研究和论述了基于虚拟现实技术的船舶并行设计的原理,关键技术及其性能评估方法. 相似文献