SGER: Production Planning Models for Companies with Remanufacturing Capability

本研究旨在解决产品生命周期结束时的再制造问题。这是一项旨在将保护环境质量问题与保持经济制造问题相结合的研究。特别地，本研究将寻求一个具有再制造能力的生产系统模型的发展，该模型可用于探索不同需求模式、生产和处置成本以及政府行为对再制造政策经济可行性的影响。再制造包括在产品寿命结束时对从市场返回的产品进行翻新和/或部分重建，以使其具有新产品的功能。这项研究本质上是探索性的。要开发的模型的基本组成部分将包括产品分期、拆卸、分类、清洁、修理和组装。对于装配操作，假定采用人工装配。该模型还假设在同一工厂内同时进行再制造和新装配。在完全开发后，该模型将用于确定最低成本的采购和生产计划。该模型的输出将包括(1)要拆解的产品数量，(2)要再利用或处理的每个部件的数量，(3)要再制造的每个产品的数量，以及(4)为满足市场需求而制造的每种新部件和产品的数量。世界许多地方日益认识到，由于对已达到其生命周期终点的产品处置不当而造成的环境退化问题。虽然拟议的研究不会消除这个问题，但它确实通过开发一种将旧组件的重用集成到制造中的方法来减轻影响。从研究中得到的对环境、资源使用和节约以及制造成本节约的影响可能是相当显著的。将要开发的模型将为实现完整的模型铺平道路，这些模型可以被公司用来评估将环境问题纳入制造决策和过程的成本和收益。

9520438 Uzsoy This research is aimed at addressing the problem of remanufacturing of a product at the end of its life cycle. It is a research that is aimed at integrating issues on preserving environmental quality and at same time maintain economic manufacturing. In particular, the research will pursue the development of a model of a production system with remanufacturing capability which can be used to explore the effects of different demand patterns, production and disposal costs, and government actions on the economic viability of remanufacturing policies. Remanufacturing involves the refurbishing and/or partially rebuilding a product returned from the market at the end of its life to give it the functionality of a new product. This research is exploratory in nature. The basic components of the model to be developed will include product staging, disassembly, sorting, cleaning, repair, and assembly. With respect to assembly operations, manual assembly is assumed. The model also assumes that both remanufacturing and new assemblies are carried out simultaneously in the same facility. When fully developed, the model will be used to determine a minimum cost procurement and production plan. Output from the model will include (1) the quantity of a product to disassemble, (2) the quantity of each component to reuse or dispose of, (3) the quantity of each product to remanufacture, and (4) the quantity of new components and products of each type to make in order to satisfy market demand. The problem of environmental degradation resulting from improper disposal of products that have reached the end of their life cycles is increasingly being recognized in many parts of the world. Whereas the proposed research will not eliminate the problem, it does, however, lessen the impact by developing a methodology to integrate the reuse of old components into manufacturing. The impact on environment, resource usage and conservation, and manufacturing cost savings to be derived from the research can be q uite significant. The models to be developed will pave the way for the realization of complete models that can be used by companies to evaluate the costs and benefits associated with integrating environmental concerns into manufacturing decisions and processes.