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造船精益计划是实现降低生产成本,提高生产效益的重要保障.文中以生产同步化和生产均衡化为目标,通过构建船舶平面分段生产线的eM-Plant模型,编制分段建造初步计划,定义标准作业,并将初步计划导入到生产线模型之中进行运行,得到各工位工作负荷情况.经过对生产线瓶颈和工时利用率的分析,验证了该仿真方法可以为计划的动态调整提供依据和技术支撑. 相似文献
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依据基于模型定义(Model Based Definition,MBD)的船舶虚拟建造技术是对船舶设计技术的创新。通过选取液化天然气(Liquefied Natural Gas,LNG)船船体分段建造的重要工艺环节,基于统一的三维模型,根据船舶建造工艺流程,在实船建造前开展基于三维模型的虚拟仿真验证,动态分析船舶中间产品的可制造性以优化工艺设计,打通船舶产品设计(Ship Product Design,SPD)三维模型在三维完整性建模设计、虚拟仿真、生产中的数据链路,形成基于三维模型的产品设计、工艺设计和建造仿真技术方案,可有效降低现场返工率、提升船舶建造效率和质量。 相似文献
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船舶建造生产管理水平的不断提高,是随着船舶建造发展进行的。如何提升船舶建造生产效率,降低生产运营成本,目前仍然是一个比较大的管理难题。况且船舶舾装建造在船舶建造中尤为重要,其中大节点的定制、月计划的部署、周计划的梳理、日计划的实施都是科学生产计划中非常重要的环节。现场生产管理需对建造过程中的成果落实及节点计划的实施给予合理性的安排。文章重点对现场生产管理中的主要环节、实施计划、调度管理进行探讨,旨在分析梳理计划的运营实施并合理地安排船舶建造生产计划,为船舶舾装建造提供参考资料。 相似文献
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根据船舶建造的作业流程及系统仿真的特点,设计了基于Em-plant软件的仿真流程,建立了从材料码头到分段装焊工场的仿真模型,并给出了仿真结果,为仿真分析技术在船舶制造行业的应用研究提供了有效的实例。 相似文献
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Kazuhiro Aoyama Toshiharu Nomoto W Kentaro 《Journal of Marine Science and Technology》1999,4(1):35-43
There are many restrictions on production in the factory. The most efficient production schedule should be planned taking
these restrictions into account. Professional skill is necessary to plan the best schedule. A schedule planner has to deal
with so much information during production planning that it is difficult to plan the best production schedule with a consideration
of so many restrictions. In this study we introduced the use of Petri nets to support such production planning with a computer.
Petri nets have been widely used to simulate production because of their capability of modeling concurrency, synchronization,
and sequencing in discrete-event systems. This paper reports on implementing a simulation system for the shipyard. We had
already implemented a production planning support system for a shipyard that is a part of the computer integrated manufacturing
(CIM) system in shipbuilding. Based on this system, we implemented a shipyard simulator that can simulate the production activity
in the shipyard. We therefore have defined a shipyard model. The production conditions can be changed, and the efficiency
of a schedule can be evaluated. This paper discusses the effectiveness of using a factory simulator.
Received for publication on Oct. 5, 1998; accepted on May 12, 1999 相似文献
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江南造船数字化生产计划关键技术应用 总被引:2,自引:1,他引:1
造船数字化生产计划体系以构建一体化的计划共享管理平台为核心,通过网络优化、电子看板等技术综合管理建造计划、设计计划、生产准备计划和物资配套计划,使计划管理达到事前、事中和反馈控制,有效提升计划的可执行性,提高生产效率、压缩生产成本、缩短整体建造周期。 相似文献
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A new method of virtual ship assembly modeling which integrates ship three-dimensional design and ship construction planning was described in this paper. A workflow model of simulation modeling based on the virtual ship assembly process was also established; furthermore, a method of information transformation between the ship three-dimensional design and ship construction plan was formulated. To meet the requirements of information sharing between different systems in the ship virtual assembly, a simulation database was created by using the software engineering design method and the relational data model. With the application of this database, the information of ship three-dimensional design, construction planning, and virtual assembly can be integrated into one system. Subsequently, this new method was applied as a tool to simulate the virtual assembly of a ship, and the results guarantee its rationality and reliability. 相似文献
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振华启东船厂前身为成立于2007年的道达船厂,针对厂区内各功能模块之间的能力匹配问题凸显、部分设施破损、部分设施严重制约厂区生产能力的问题,通过厂区现状平面布局、工艺流程系统梳理,根据企业发展定位和关键生产要素潜能制定科学合理的规划目标,以生产设施产能分析计算分析为理论支撑,提出一套各区域产能相匹配且适应未来规模化、精益化、规范化、安全化发展的产能升级布局规划方案,达到各功能模块布局合理、生产能力匹配、生产工艺流畅、生产设施规范的目的。针对既有港区的产能升级规划,采用以定量计算为支撑的规划方法,可供类似工程参考与借鉴。 相似文献
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The authors developed a prototype of a warship maintenance system. The process started by defining the maintenance requirements
of warship equipment. Next, a planning scheme was development for a maintenance network. An optimization target for the plan
and indexes for assessment were established. Based on the above work, a simulation model was proposed with two layers: a base
and a workshop. Dispatching rules were then formulated for the simulation. Experimental results proved the validity of the
model and the dispatching algorithm. It was found that the model can solve the capacity evaluation problem for maintenance
systems and provides a scientific basis for decision-maker to make decisions regarding equipment maintenance. 相似文献
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针对某系列散货船总组/搭载区域工作包/派工单(WP/WO)作业分解实际,对总组/搭载过程的基础数据、生产工艺和流程、设施设备和资源等进行系统而全面的梳理与分析,建立基于WP/WO作业计划的总组/搭载仿真模型。实际生产前在虚拟环境中进行评估,提前发现潜在的问题,使设计、生产和管理更加准确、高效,确保生产有条不紊地进行。实例分析结果表明,面向WP/WO作业计划的总组/搭载仿真是行之有效的,可为精细化管理提供决策依据。 相似文献