Delivering compliance and agility [product lifecycle management]

This paper explains how product lifecycle management (PLM) tools can be used such that an organization's supply chain is managed to ensure quality, with availability, compliance and competitiveness as primary areas of focus. By providing one product record, PLM can manage, coordinate and optimize the processes, decisions and information about products from initial concept to end-of-life across the extended enterprise.     

基于J2EE的成套电器企业集成平台框架与应用系统的研究

将成套电器企业模型与J2EE构架相结合,提出了基于J2EE的成套电器企业集成平台的体系结构和层次模型。平台提供统一的全局共享主题数据模型和以项目管理为中心的企业运营工作流程,实现了营销、生产计划、设计、工艺、物流采购、质量检验、仓库、制造和财务等企业职能部门信息和过程的有效集成。在集成平台的基础上,构建了基于Web和组件技术的成套电器企业产品数据管理和企业资源计划业务系统域,并着重研究了这两个业务系统域的应用组件实现的关键技术。作为应用示范,完成了一家成套电器工厂企业信息化系统的实施,使企业的设计能力、交货期、质量、成本和服务水平等综合指标大为提高。     

面向企业信息集成的全面成本管理

从全面成本管理的角度探讨了企业的信息集成问题。通过建立产品特征与标准时间估计之间的联系,提出一种基于特征的成本估计方法。在此基础上,通过统一成本计算的方法,集成了原有计算机管理系统,建立了面向企业信息集成的全面成本管理系统,最后,以一家冰箱企业为例进行了案例研究,说明方法的可行性和有效性。     

Evaluation of design alternatives in collaborative development and production of modular products

In the globally competitive business environment, collaborative product development has become an important strategy for enterprises to reduce risks and enhance their competitiveness. The planning phase becomes more significant and complicated when utilizing external resources to determine a product solution to achieve customer satisfaction and business goals. The decision process for assessing design alternatives depends on the tradeoffs between quality, time, and cost. In this research, we propose a framework for collaborative product development and production of modular products. It aims at linking customer requirements, generating design alternatives, and then evaluating and selecting these choices to determine the optimum solution. They are considered from both design aspects and manufacturing concerns. Product strategy is discussed as the most important factor in the evaluation process. Further, a practical application of a system-on-a-chip product planning process was carried out to demonstrate the completeness and benefit of our proposed framework.     

实现组织与顾客共赢的产品族规划与延迟策略决择

在大规模定制(MC)模式下,企业通过产品族规划来最大化顾客满意度和最大化组织利润。基于MC的两个实现策略:产品设计模块化定制化、制造过程延迟化,提出了一种产品族定制设计系统化方法。构建多维扩展质量屋、将市场需求有效转换为产品族及成员的定制属性取值;将制造延迟区分过程与供应链相结合,构建多级生产供应库存运作系统、以预测定制模块及定制产品的成本;当配置定制属性与成本而构成虚拟定制产品族时,利用联合分析法研究市场对各定制产品的偏好效用、以此明确产品族定制规划与延迟形式;而不同方案的对比可决择产品族的适宜定制程度与恰当延迟策略、实现顾客与组织共赢。最后,通过一个实例来说明理论与方法的有效性。     

工艺规划为核心的产品协同研发生产平台

为实现具有市场竞争力产品的高端研发,并具备较高的质量及成本控制能力,文中提出构建以工艺规划为核心的产品数字化研发生产平台的解决思路.平台框架包含计算机辅助设计、产品数据管理、计算机辅助工艺规划和协同制造模块;通过工艺与设计、生产两端的数据共享,实现设计、工艺数据和生产的高效协同;通过工艺规划方案的功能描述,展现了一个为...     

基于组件的车间级质量信息管理的技术研究与系统实现

针对某企业车间质量管理的功能需求，分析了集成环境下车间级的产品质量管理功能模型，建立了基于组件技术的质量管理系统结构框架，开发了网络环境下车间级的生产质量管理系统，实现了车间内质量数据信息的共享和对产品质量的有效控制，提高了车间生产效率，降低了生产成本，还与车间管理系统中其他系统实现了集成，同时组件模块化的设计方式为系统各模块的后续开发维护提供了方便。     

Optimal Parameter and Tolerance Design with a Complete Inspection Plan

The need to remain competitive has led manufacturing sectors to consider tolerances as the key to achieving low cost and high quality. To produce quality products at low cost in today’s manufacturing industry, an integration of product design and process planning is essential. Process tolerance is one of the most important parameters that link product design and process planning. The process mean is also a critical parameter for further quality improvement and cost reduction under the permissible process setting adjustment within design tolerance limits. This study discusses an approach to integrate the product and process design via the optimisation of process mean and process tolerance.     

虚拟原型技术在机电产品开发中的应用

从我国机电产品开发面临的挑战入手,阐述了虚拟原型技术及其在机电产品开发中的应用现状和发展趋势。研究表明,采用该方法能够有效缩短产品开发周期,提高设计质量,实现产品开发周期和成本的最小化。     

An Intelligent Knowledge-Based System for Product Cost Modelling

An intelligent knowledge-based system for product cost modellingis presented in this paper. The developed system has the capability of selecting a material, as well as machining processes and parameters based on a set of design and production parameters; and of estimating the product cost throughout the entire product development cycle including assembly cost. The proposed system is applied without the need for detailed design information, so that it can be used at an early design stage, and, consequently, redesign cost and longer lead time can be avoided. Hybrid knowledge representation techniques, such as production rules, frame and object oriented are employed to represent manufacturing knowledge. Fuzzy logic-based knowledge representation is applied to deal with uncertainty in the knowledge of cost model to generate reliable cost estimation. This paper deals with cost modelling of both a machining component and an injection moulding component, which is a process that gives high production rates, excellent quality and accuracy of products, and low manufacturing cost. Based on the analysis of the moulded product life cycle, a computer-based cost model was developed which integrated the relationship between cost factors, product development activities, and product geometry. The estimated cost included the costs of material, mould and processing. The system has been validated through a case study.     

面向产品生命周期的质量控制模型及应用

以产品生命周期和产品进化机理为基础,提出了面向产品生命周期的质量数据模型和质量控制系统总体结构。通过产品进化关系和数据模型完整表达纺织产品的工艺进化过程,实现了纺织品生命周期内的质量数据共享和质量信息的可追溯,从模型层上保证质量数据在纺织品进化全生命周期内的一致性,完整性;同时该数据模型集成智能挖掘技术与统计过程控制技术,实现了对纺织品质量的预测;并通过质量综合评估体系的建立,为纺织工艺优化提供了决策依据。     

An ISA-95-based manufacturing intelligence system in support of lean initiatives

Increasingly, lean manufacturing is being applied by leading manufacturers throughout the world. As continuous improvement cycles of many lean initiatives focus on cost control and improving quality of product, turbulence in world markets demand more agility and responsiveness without compromising cost and quality. In order to attain more agility, information and communication technologies are utilized by many manufacturers, both at shop floor systems and enterprise resource planning (ERP) layer. This increasing trend created a disconnect that presents an opportunity for manufacturing intelligence (MI) systems. Bridging this gap, MI can enhance responsiveness by providing visibility into operations and improve quality by tracking long-term data, hence support the continuous improvement philosophy of lean manufacturing. This paper presents an ISA-95-based MI framework that can support lean manufacturing by contextualizing low-level shop floor data using production operation information from ERP systems. Processed data is presented on dashboards via Key Performance Indicators, which managers can use to determine appropriate action for their lean initiatives, timely and effectively.     

生命周期大数据驱动的复杂产品智能制造服务新模式研究

在分析当前制造企业产品生命周期管理面临的挑战与现有制造服务模式不足的基础上,针对复杂产品生命周期数据呈现的大数据特性,提出一种生命周期大数据驱动的复杂产品智能制造服务新模式,并设计了一种体系构架。以产品生命周期为主线,提出并详细阐述了生命周期大数据驱动的智能制造服务新模式的关键技术体系与实现框架,包括制造和运维动态数据驱动的产品与服务设计、实时多源数据驱动的生产过程分析与优化、面向服务的运维数据故障演化分析与预测等。通过上述体系构架及关键技术的实施,可有效促进生命周期各阶段数据和知识的集成应用,进而构建一种产品设计闭环创新、生产过程实时优化、运维服务动态预测的产品生命周期管理与运作机制,以提升全制造流程和全生命周期管理的智能决策能力。所提体系和框架可为生命周期大数据驱动的智能制造服务研究和应用提供一种参考模型。     

Concurrent process/inspection planning for a customized manufacturing system based on genetic algorithm

Producing products with multiple quality characteristics is always one of the concerns for an advanced manufacturing system. To assure product quality, finite manufacturing resources (i.e., process workstations and inspection stations) could be available and employed. The manufacturing resource allocation problem then occurs, therefore, process planning and inspection planning should be performed. Both of these are traditionally regarded as individual tasks and conducted separately. Actually, these two tasks are related. Greater performance of an advanced manufacturing system can be achieved if process planning and inspection planning can be performed concurrently to manage the limited manufacturing resources. Since the product variety in batch production or job-shop production will be increased for satisfying the changing requirements of various customers, the specified tolerance of each quality characteristic will vary from time to time. Except for finite manufacturing resource constraints, the manufacturing capability, inspection capability, and tolerance specified by customer requirement are also considered for a customized manufacturing system in this research. Then, the unit cost model is constructed to represent the overall performance of an advanced manufacturing system by considering both internal and external costs. Process planning and inspection planning can then be concurrently solved by practically reflecting the customer requirements. Since determining the optimal manufacturing resource allocation plan seems to be impractical as the problem size becomes quite large, in this research, genetic algorithm is successfully applied with the realistic unit cost embedded. The performance of genetic algorithm is measured in comparison with the enumeration method that generates the optimal solution. The result shows that a near-optimal manufacturing resource allocation plan can be determined efficiently for meeting the changing requirement of customers as the problem size becomes quite large.     

Automation of integrated logistical product support

Information integration is becoming a global strategy for improving the efficiency of life-cycle support. This approach ensures competitive products and high-tech products of high quality. On that basis, a unified system may be created from all the departments of the enterprise involved in the design and development of new products, preparations for production, and mass production and also the departments that support the delivery and maintenance of the product, as well as its maintenance, updating, and disposal.     

基于Web的异地协同生产计划与控制策略研究

动态联盟作为敏捷制造的组织形式是实现敏捷制造的关键技术之一。文章提出了基于敏捷制造模式下的动态联盟企业异地协同生产调度与控制的框架模型，并详细探讨了生产调度的协同控制方法和核心问题，借助Internet/Intranet构建了一个协同生产调度与控制的实施模型，为制造业进行分散网络化集成产品开发与制造提供了一种参考模型。     

Average-Cost Optimal Policies for an Unreliable Flexible Multiproduct Machine

This paper is concerned with optimal production planning on a single failure-prone flexible machine that produces N distinct part types. The machine is flexible in the sense that no setup is required for switching from production of one part type to another. We consider the problem of controlling production rates to minimize the expected long-run average cost of product surpluses over time. We assume constant unit holding and shortage costs and constant demand rates for the part types. Moreover, the costs are assumed to be the same for all products. We provide an explicit optimal solution for the problem.     

基于Web的复杂产品全寿期敏捷供应链系统研究

文章阐述了定制复杂产品供应链的需求、目标、功能及其信息工作流.产品全寿期供应链信息工作流以产品全寿期配置为核心.产品的结构功能、制造和维修配置等视图是由全寿期协同设计生成的,并由制造配置中的配套视图和B2B供应模式组合,形成了制造阶段的采购视图,而由维修配置中的供应保障视图和B2C供应模式组合形成了使用维修阶段采购视图.它们分别为生产和维修计划服务.扼要介绍了已开发的原型系统的功能示例.     

Service lifecycle

This article introduces the service lifecycle and the organizational implications for those companies that take up the challenge of manufacturing the original product and delivering ongoing service provision to the customers who buy it. The service lifecycle applies to maintenance of products that have a fairly long life and require a good deal of service, and covers the installed base of products needing maintenance. As with product lifecycle, there are four stages that best describe the service lifecycle: rapid growth; transition; maturity and end of life. The product lifecycle has a long track record as a marketing model. Less well known is the service lifecycle, which can be viewed as of critical importance when providing high value capital, engineering, products. Reviewing these models in tandem highlights some of the strategic decisions open to layers in these markets and highlights the importance of market scanning and analysis.     

制造业企业工艺管理

提高制造业核心竞争力的关键在于提高生产效率和加工质量,缩短交货时间。工艺管理是制造业企业实现生产的纲领,强化发挥工艺管理的作用能有效提升生产效率,降低生产成本和保证质量的一致性,为企业增强综合竞争力,持续发展奠定坚实基础。