Engineering of Project-based Production Systems for the Delivery of Engineered-to-order Products

用于交付按订单设计的产品的基于项目的生产系统工程

• 批准号: 0223576
• 负责人: Iris Tommelein
• 金额: $ 15.12万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2005-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0223576&HistoricalAwards=false
• 关键词: Engineering; Project; based; Production; Systems

Project-based production (PBP) systems are dedicated to designing and making artifacts that provide value to project stakeholders. Their delivery is a type of service when the artifacts are engineered-to-order (ETO). Delivery of custom products that enable realization of customer purposes, while being responsive to the needs of multiple users and various life-cycle requirements, pushes PBP systems and ETO products firmly into the service category.Numerous services are delivered through PBP systems and produce ETO products. Examples of services belonging to this class of problems are health care (e.g., patient diagnosis and treatment), construction services, film and theatrical productions, software engineering, oil field development, consumer product development, custom ship building, and work orders (e.g., job shops). Learning how to design, control, and systematically improve the delivery of ETO products can be understood as a topic of importance to many-if not most-service functions.The objective of this research is to determine how to reduce lead times for one type of ETO product in the engineering and detailing phases of delivery using industry-practice data, computer-based simulation, and computer-based as well as practice-based experimentation. Taking one step towards the PI's larger objective, this exploratory research focuses on one type of ETO product, in one type of service function, namely the delivery of steel reinforcing bars used in pre-cast or cast-in-place concrete. What is learned from this project will be cast in a theoretical framework and applied to delivery processes for other ETO products in various service sectors, in an effort to establish one component of a general methodology for the design, control, and continuous improvement of project-based ETO product delivery.The working hypotheses are that (1) Traditional ETO delivery is characterized by sequential processing, with each participating company or department sub-optimizing total system performance; (2) Rework in engineering and detailing exceeds 10%; (3) The ratio of idle time to total time spent by an ETO product as it moves from engineering through fabrication and delivery exceeds 20 to 1; and (4) The ration of fabrication shop cycle time to fabrication lead time exceeds 10 to 1. The research will aim to reject these. Should findings, however, reinforce these hypotheses, then opportunities for radical improvement in the ETO delivery process abound. A research agenda will then be staked out, and, time permitting under this 18 month grant, selected improvements will be implemented and tested.

基于项目的生产(Project-Based Products，PBP)系统致力于设计和制造为项目涉众提供价值的构件。当产品是按订单设计(ETO)时，它们的交付是一种服务。定制产品的交付能够实现客户的目的，同时响应多用户的需求和不同的生命周期要求，将PBP系统和ETO产品牢牢地推入服务类别。属于这类问题的服务的例子有卫生保健(例如，病人诊断和治疗)、建筑服务、电影和戏剧制作、软件工程、油田开发、消费品开发、定制造船和工作订单(例如，工作商店)。学习如何设计、控制和系统地改进ETO产品的交付可以理解为许多(如果不是大多数)服务功能的重要主题。本研究的目标是确定如何在工程中减少某类ETO产品的交货期，并使用行业实践数据、基于计算机的模拟、基于计算机的实验以及基于实践的实验来详细描述交付的各个阶段。为了向PI的更大目标迈进一步，这项探索性研究集中在ETO产品的一种类型的服务功能上，即交付预制或现浇混凝土中使用的钢筋。从这个项目中学到的东西将被放在一个理论框架中，并应用到不同服务部门的其他ETO产品的交付过程中，努力建立基于项目的ETO产品交付的设计、控制和持续改进的一般方法的一个组成部分。工作假设是：(1)传统的ETO交付是以顺序处理为特征的，每个参与公司或部门都对系统整体性能进行了次优化；(2)在工程和细节方面的返工超过10%；(3)ETO产品从工程到制造和交付所花费的空闲时间与总时间的比率超过20：1；(4)制造车间周期与制造提前期的比例超过10：1。本研究的目的是摒弃这些问题。然而，如果研究结果证实了这些假设，那么在ETO交付过程中进行根本性改进的机会比比皆是。然后将制定研究议程，并在18个月的拨款下，在时间允许的情况下，实施和测试选定的改进措施。