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Component ordering strategies in assembly systems with uncertain capacity and random yield

机译：具有不确定容量和随机产量的装配系统中的组件订购策略

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摘要

Sourcing components in a complex global supplier network may lead to a high degree of supply uncertainty. Events, such as unexpected production defects or insufficient supplier capacity, can cause unexpected shortages of required components and halt the assembly of final products. Accordingly, the assembly enterprises must effectively manage various supply uncertainties in their component ordering decisions to avoid such component shortfalls. These issues have guided this research to investigate the optimal ordering strategies of an assembler facing the following two types of supply uncertainty: the uncertain production capacity of a standard component (component 1) and the random production yield of a core component (component 2). The assembler makes the component ordering decisions before these supply uncertainties are realized. We characterize the optimal ordering decision and find that the assembler should order components 1 and 2 according to a fixed ratio, which only depends on the random yield of component 2 and the production cost of component 1, but not on the uncertain capacity of component 1. A case study is presented to further explore the intertwined effects of these two uncertainties in an assembly system. Finally, the model is extended to consider a secondary option of buying additional component 1 s after observing some or all of the supply uncertainties, and this secondary option endows the firm with different capabilities in counteracting the supply uncertainties.
机译：复杂的全球供应商网络中的采购组件可能导致高度供应不确定性。例如意外生产缺陷或供应商能力不足，可能会导致所需组件的意外短缺，并停止最终产品的组装。因此，集会企业必须有效地管理其组成部分订购决定中的各种供应不确定性，以避免此类成分不足。这些问题引导了这项研究，研究了面向以下两种供应不确定性的汇编器的最佳排序策略：标准组分（组分1）的不确定的生产能力和核心组分的随机产量（组分2）。汇编器在实现这些供应不确定性之前使组件订购决定。我们表征了最佳排序决策，并发现汇编器应根据固定比率顺序组件1和2，这仅取决于组件2的随机产量和组件1的生产成本，但不是组件1的不确定容量。提出了一种案例研究，以进一步探索组装系统中这两个不确定性的交织效果。最后，扩展了该模型，以考虑在观察某些或所有供应不确定性之后购买附加组件1s的二级选择，并且该二级选项在抵消供应不确定性时赋予了不同的能力。

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  • 来源
    《Applied Mathematical Modelling》 |2020年第12期|715-730|共16页
  • 作者

    Qingkai Ji; Shaorui Zhou; Bo Li; Zhiming Chen;

  • 作者单位

    School of Management Hainan University Haikou 570228 China School of Economic and Management Southeast University Nanjing 210000 China;

    Department of Management Sciences Sun Yat-sen Business School Sun Vat-sen University Guangzhou 510275 China;

    Ningbo China Institute for Supply Chain Innovation Ningbo 315832 China;

    Department of Credit Management School of Credit Management Guangdong University of Finance Guangzhou 510521 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Assembly system; Component procurement; Uncertain capacity; Random yield;

    机译：装配系统;组成部分采购;不确定的能力;随机收益率;

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