Integrated Optimization Modelling in Quality Control, Production Planning, Inventory Control and Maintenance

质量控制、生产计划、库存控制和维护的集成优化建模

• 批准号: RGPIN-2016-04147
• 负责人: Rahim, M
• 金额: $ 1.75万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=709008
• 关键词: Integrated; Optimization; Modelling; Quality; Control

Today's industry is mainly focused on improving productivity and quality. The key to success in manufacturing processes is the proper integration of quality control, production planning, inventory control, and maintenance policy, which have been treated as separate issues until recently. The proposed study presents integrated optimization modelling for solving various production and quality control problems. The research consists of four sets of problems which have practical and theoretical importance as well as training merit. The first set involves the joint economic selection of process parameters and production run. This issue arises because it can affect the defect rate, material cost, scrap or rework cost and quality loss incurred by the customer. During the production period, the process parameters setting may shift to an out-of-control state. Setting the optimal process target parameter(s) and determining an optimal production run are two very important factors for many industrial processes. Effective integration of these factors will provide an economic advantage to the manufacturer. It is expected that the findings of this research will be very useful for end users. The second set proposes integrated economic models for quality control, production control and preventative maintenance for a deteriorating production system in which the production process may not only shift from an in-control state to an out-of-control state, but also may break down at any random point in time. The economic design of control charts refers to the optimization of cost models for the purpose of selecting control chart parameters which minimize the cost of quality. The preventative maintenance of manufacturing equipment and the quality of a manufactured product are inter-related. The proposed research on integrated models will be formulated under general shift, breakdown and repair time distributions. This research is expected to make a significant contribution in the field. The third set is the development of a dynamic integrated model for joint optimization of production quantity, inspection scheduling, and quality control for an imperfect production process with deteriorating inventory items. A generalized integrated economic model for inventory, quality, and maintenance problems will be presented for the manufacturer, for whom the product quality and the production quantity are equally important. The fourth set is the development of an integrated model for determining the most economic manufacturing quantity, the optimal warranty cost, the optimal warranty period and the optimal price for a random lifetime distributed product. This is a new area of investigation which will analyze how integration of inventory, quality and maintenance can affect warranty policies. It will be shown that the corrective maintenance policy would considerably reduce warranty claims.

当今的行业主要集中在提高生产率和质量上。制造过程成功的关键是质量控制，生产计划，库存控制和维护政策的正确整合，直到最近才被视为单独的问题。拟议的研究提出了综合优化建模，以解决各种生产和质量控制问题。该研究由四组问题组成，这些问题具有实用和理论上的重要性以及培训优点。 第一组涉及过程参数的联合经济选择和生产运行。之所以出现此问题，是因为它会影响客户产生的缺陷率，材料成本，废料成本和质量损失。在生产期间，过程参数设置可能会转移到控制状态。设置最佳过程目标参数并确定最佳生产运行是许多工业过程的两个非常重要的因素。这些因素的有效整合将为制造商带来经济优势。预计这项研究的发现对最终用户非常有用。 第二组提出了用于质量控制，生产控制和预防性维护的综合经济模型，以恶化的生产系统，在该系统中，生产过程不仅可以从控制状态转移到控制状态，而且可能会破裂在任何随机点。控制图的经济设计是指优化成本模型，目的是选择控制图表参数，以最大程度地减少质量成本。制造设备的预防性维护和制成品的质量是相互关联的。拟议的综合模型研究将在一般的转移，分解和维修时间分布中进行制定。这项研究有望在该领域做出重大贡献。 第三组是开发一个动态集成模型，用于对生产数量，检查计划的联合优化，并为不断恶化的库存项目提供不完美的生产过程。将为制造商提出一个通用的库存，质量和维护问题的综合经济模型，产品质量和生产量同样重要。 第四组是开发用于确定最经济制造数量，最佳保修成本，最佳保修期和随机终生分布式产品的最佳价格的综合模型。这是一个新的调查领域，它将分析库存，质量和维护的整合如何影响保修政策。可以证明，纠正性维护政策将大大减少保修索赔。