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依据客户要求(订单),采用柔性化的生产模式来满足客户日益多样化和个性化的需求,企业如何充分利用制造信息技术在复杂的生产环境中,高效组织混流装配生产活动并制造出满足客户需求的产品,显得异常重要.提出了基于数据流的柔性化批次装配生产全状态、全过程和责任制管理模式,采用基于单位时间内提高资金回款额和利润额日排产体系,较好地解决了小批量多品种多批次生产模式下的生产管理问题,并对小批量多品种混合装配制造的企业具有较好的示范意义. 相似文献
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为提高自动化混流生产线的生产效率,瓶颈工作站通常设计有并行制造能力,以便同时处理多个工件。针对工件在并行制造单元上的实际加工时长跨越多个周期的情形,提出一种等效转换方法,从而将瓶颈工作站使用能力约束的研究对象从工作站整体转移到相互独立的多个制造单元个体上。以此为基础,针对自动化混流生产线周期性调度问题,构建了考虑并行工作站使用能力约束的混合整数线性规划模型。此外,基于现有文献针对并行工作站使用能力约束的建模方法,构建了该问题不考虑重入工艺情形时的混合整数线性规划模型。采用改进的标准案例首次指出了并行制造单元上搬运作业存在的周期性交替配对现象,并阐述了所提出转换方法处理相应约束的可行性。大量随机案例验证了所提出的模型的性能。基于随机案例的对比实验验证了所提出的针对并行工作站使用能力约束建模方法的最优性。 相似文献
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根据OEM电子产品制造的特点,从解决需求不均衡、建立混流生产和单元生产相结合的生产系统、混流生产的实施方法等三个方面提出了适合于OEM电子产品制造的均衡生产方式。结合实际案例,提出了最小混流批量的计算方法、混流排序方法以及混流生产的现场管理方式,从而使得这种生产方式能够更加容易运作、透明和有效地实施。 相似文献
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在研究个性化产品定制生产模式的基础上,分析了网络环境下产品设计与制造的特点,建立了基于数控机床的网络化设计和制造技术框架,研究了实现网络化制造的关键技术.通过对该技术的研究,客户可以与设计人员共同定制出满足客户个性化需要的产品,为企业有效地满足客户多品种、小批量、多批次、短周期和高质量的消费需求提供新的方向. 相似文献
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为解决云制造环境下的跨企业协同生产调度问题,提出一种适用于云制造环境下生产资源调度的混合集合规划方法。该方法基于切削算法框架,综合考虑多种约束,提出一种有效的求解策略,实现了一种面向订单且适用于跨企业、多约束、多品种、小批量的有限能力调度算法,为供应链中供需企业提供了一份拖期小、费用低、跨度短的协同生产计划。利用多组制造企业真实数据对模型进行测试,结果表明,该模型可在合理时间内有效求解实际应用规模的跨企业协同生产调度问题。 相似文献
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Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production 总被引:1,自引:0,他引:1
Zailin GUAN Yunfang PENG Li MA Chaoyong ZHANG Peigen LI 《Frontiers of Mechanical Engineering in China》2008,3(4):454-461
The existing technology of flow manufacturing, which is mainly appropriate for high volume and repetitive production, is proven
difficult to be applied in high-mix/low-volume environments. To adapt lean production into the latter, a new type of flow
manufacturing is proposed based on flow path management technology. This paper first describes the general operation framework
of the proposed new mode. The main idea is the dynamic formation of adaptable virtual production lines (called flow paths)
corresponding to different product families. The application of different theories of constraints/drum-buffer-rope (TOC/DBR)
control policies depends on the differences in scope of variety and scale of demand for these product families. The overall
architecture of the proposed mechanism of constraint management-based operation and control is introduced. For the implementation,
a mathematical programming method is suggested for the dynamic planning of flow paths, and a TOC/DBR ‘path-specific’ mechanism
with group scheduling is used for the control over each flow path.We also study other critical issues including the identification
and management of resource bottlenecks, and the setting of the buffer size in the deployment of the TOC/DBR mechanism. 相似文献
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GUAN Zailin PENG Yunfang MA Li ZHANG Chaoyong LI Peigen 《Frontiers of Mechanical Engineering》2008,3(4):454
The existing technology of flow manufacturing, which is mainly appropriate for high volume and repetitive production, is proven difficult to be applied in high-mix/low-volume environments. To adapt lean production into the latter, a new type of flow manufacturing is proposed based on flow path management technology. This paper first describes the general operation framework of the proposed new mode. The main idea is the dynamic formation of adaptable virtual production lines (called flow paths) corresponding to different product families. The application of different theories of constraints/drum-buffer-rope (TOC/DBR) control policies depends on the differences in scope of variety and scale of demand for these product families. The overall architecture of the proposed mechanism of constraint management-based operation and control is introduced. For the implementation, a mathematical programming method is suggested for the dynamic planning of flow paths, and a TOC/DBR ‘path-specific’ mechanism with group scheduling is used for the control over each flow path. We also study other critical issues including the identification and management of resource bottlenecks, and the setting of the buffer size in the deployment of the TOC/DBR mechanism. 相似文献
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主要针对某铁塔制造企业的生产管理、材料管理、优化下料的业务流程进行分析与研究,应用ERP原理、数据库技术把优化下料算法融合到材料管理中去,提出了比较实用的系统方案,并在此基础上开发了基于优化下料算法的铁塔制造企业材料管理软件系统,通过下料管理、采购管理、库存分析等功能模块,为企业构建了高性能的下料使用环境,成功地实现了铁塔制造企业材料管理的科学化和信息化。 相似文献
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Shannon W. Anderson 《International Journal of Flexible Manufacturing Systems》2001,13(3):241-265
Studies of the performance effects of product mix complexity typically treat plant capacity utilization and machine scheduling (for example, setup frequency) as exogenous factors associated with technology choices, economies of scale, and the level of market demand. However, capacity utilization and machine scheduling also reflect tactical operating decisions taken by local managers to maximize short-run performance. If managers rationally anticipate a negative relation between performance and product mix complexity, we expect tactical operating decisions to be used to mitigate performance degradation. Previous empirical studies that ignore this simultaneity provide an incomplete assessment of the performance effects of product mix complexity. This paper uses path analysis to examine the combined impact of product mix on capacity management decisions and operating performance in three textile manufacturing plants. The results support the hypothesis that product mix acts through capacity management decisions to reduce performance from the level implied by direct effects alone. The evidence also supports the behavioral proposition that managers use capacity management decisions strategically—creating production slack when product mix is anticipated to most affect performance. However, although managers use discretionary capacity management intensively when the product mix is composed of complex, heterogeneous products, they are unable or unwilling to use these decisions to fully offset the performance impact of product mix. 相似文献
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在定义约束理论产品组合优化器的基础上,给出了约束理论产品组合优化器的功能划分,讨论了约束理论产品组合优化器的信息模型,分析了约束理论产品组合优化器与生产管理其他子系统的集成,选取组件技术进行约束理论产品组合优化器的开发,设计了约束理论产品组合优化器的组件层次结构,讨论了约束理论产品组合优化器大粒度组件的划分及重用实现.所开发的约束理论产品组合优化器已成功地集成应用于三家国有大中型制造企业. 相似文献
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产品开发项目管理过程模型的研究 总被引:3,自引:0,他引:3
在分析当前PDM系统中项目管理功能不足的基础上,针对制造企业产品设计过程的需求提出了PDM项目管理过程模型,运用基于扩展Petri网建模的新方法构建出了该项目管理过程模型,该模型的提出为制造企业采用项目管理模式组织设计生产提供了一种有效的软件实现方法。 相似文献
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车用空调装配车间集成化生产作业管理系统 总被引:3,自引:1,他引:2
针对车用空调装配车间存在的生产作业管理信息交互性差、生产作业进度实时监控困难等问题,结合制造执行系统等先进管理思想,构建了一种车用空调装配车间集成化生产作业管理系统,建立了该系统的体系结构、功能结构和运行模式,并研究了基于遗传算法的车用空调装配车间生产作业动态调度方法,以及基于组件技术的装配线生产作业执行情况可视化动态监控等关键技术.该系统已成功应用于重庆一车用空调制造企业,取得了良好应用效果. 相似文献