Developing a International Cooperative Production and Supply System

在汽车制造业中，为了满足顾客的需求，必须生产各种各样的最终产品，而这些需求经常会带来新车型。组装一个最终产品单元需要一万多个零件和材料，每个产品通常使用十年左右。在产品销往世界各地后，需要成千上万的维修零件来保证产品的维护。因此，开发一套高效、低库存、满足用户需求的汽车维修配件生产与供应系统就显得尤为重要。本研究旨在建立汽车维修配件的国际合作生产与供应体系，研究成果如下：(1)分析了汽车维修零部件的时间序列需求结构特征，提出了一种既考虑汽车维修零部件需求又考虑汽车维修零部件需求的三类分类方法。还有频率…更有秩序。(2)基于拉式订货系统的概念，以数学模型的形式构建了生产订货系统，分析了运输提前期对生产、运输订货数量和库存数量变化的影响，设计了各库存点的经济缓冲库存水平。(3)基于丰田生产系统的概念，提出了一种汽车维修配件供应链流程的管理方法，通过对维修配件的实际性能数据进行管理来实现。(4)提出了国际合作型全球互补生产系统（ICGCPS）中几种典型的生产和运输模式，并从路径集和运输集方面阐明了它们的特点。我们就平均装载率对各种运输模式进行了比较分析。(5)基于拉式订货系统的概念，在考虑转运和混装的情况下，建立了新的生产运输订货模型，分析了订货、提货和库存数量的变化规律。少

In automobile manufactures, many kinds of final products have to be produced in order to respond to customers' needs and these needs frequently bring out new models. More than ten thousand parts and materials are required to assemble one unit of a final product and each product is usually used for about ten years. Hundreds of thousands of repair parts are required to assure the maintenance of products after they are sold all over the world. Hence, it is very important to develop an efficient production and supply system for automobile repair parts which satisfies users' needs with low inventory level. This research aims to develop a international cooperative production and supply system for automobile repair parts and gets the following research results.(1) We analyzed the characteristics of time series demand structure of automobile repair parts and proposed a way for classifying them into three categories under the consideration of not only the demand for them but. also the frequency … More of order.(2) We formulated a production ordering system in the form of a mathematical model based on the concept of the pull-type ordering system and analyzed the effects of transportation lead time on the variation of production and transportation ordering quantities and inventory quantity for the purpose of designing of an economic buffer stock level at each stock point.(3) We proposed a way for managing supply chain process of automobile repair parts based on the concept of the Toyota production system which is realized by managing the repair parts with actual performance data.(4) We proposed some typical production and transportation models in the international cooperative global complementary Production system (ICGCPS) and clarified the characteristics of them with respect to the sets of path and transportation. We made a comparative analysis of transportation models with respect to the average loading rate.(5) We formulate a new production and transportation ordering model based on the concept of pull type ordering system under considering transshipment and mixed loading and analyze the variations of ordering, withdrawal and inventory quantities of the ordering model. Less