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A simulation approach to modeling contingency strategies for managing electronic part supply chain disruptions.

机译：用于管理电子零件供应链中断的应急策略建模的仿真方法。

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摘要

Due to the nature of the manufacturing and support activities associated with long life cycle products, parts need to be dependably and consistently available. However, the parts that comprise long life cycle products are susceptible to a variety of supply chain disruptions. In order to minimize the impact of these unavoidable disruptions to product production and support, manufacturers can implement proactive mitigation strategies. Careful selection of the mitigation strategy (second sourcing and/or buffering) is key, as it can dramatically impact the part total cost of ownership. This thesis developed a simulation model that performs tradeoff analyses and identifies a near-optimal combination of second sourcing and buffering for specific part and product scenarios. In addition, this thesis explores the effectiveness of traditional analytical models when compared to a simulation-based approach for the selection of an effective optimal disruption mitigation strategy. Several case studies were performed that: 1) tested the impact of popular analytical limiting assumptions, and 2) implemented realistic disruption data in the context of real part management. The first set of case studies demonstrated that the simulation model is capable of overcoming significant scenario restrictions prevalent within traditional analytical models: finite horizon (including non-zero WACC), fixed support costs, and unreliable backup suppliers are essential components for determining the effective optimal disruption mitigation strategy for a given disruption scenario. The second set of case studies demonstrates the importance of proper mitigation strategy selection in real electronic part supply chain scenarios. The results from the case studies not only justified the need for a simulation-based approach to disruption modeling, but also helped to cement the simulation model as an effective decision making tool for electronic part distributors.
机译：由于与长寿命产品相关的制造和支持活动的性质，需要可靠且一致地提供零件。但是，组成长寿命产品的零件容易受到各种供应链中断的影响。为了最大程度地减少这些不可避免的中断对产品生产和支持的影响，制造商可以实施主动的缓解策略。谨慎选择缓解策略（二次采购和/或缓冲）是关键，因为它会极大地影响零件的总拥有成本。本文开发了一个仿真模型，该模型可以进行权衡分析，并针对特定零件和产品场景确定二次采购和缓冲的最佳组合。此外，与基于仿真的方法相比，本文探讨了传统分析模型的有效性，以选择有效的最佳缓解干扰策略。进行了一些案例研究：1）测试了流行的分析限制假设的影响，以及2）在实际零件管理的背景下实施了实际的破坏数据。第一组案例研究表明，仿真模型能够克服传统分析模型中普遍存在的重大方案限制：有限的视野（包括非零WACC），固定的支持成本以及不可靠的备用供应商是确定有效最优方案的重要组成部分。给定中断方案的中断缓解策略。第二组案例研究证明了在实际的电子零件供应链方案中选择适当的缓解策略的重要性。案例研究的结果不仅证明需要采用基于仿真的方法来进行中断建模，而且还有助于将仿真模型巩固为电子零件分销商的有效决策工具。

著录项

  • 作者

    Allison, Hannah Grace.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Engineering Mechanical.;Engineering Industrial.
  • 学位 M.S.
  • 年度 2014
  • 页码 118 p.
  • 总页数 118
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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