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首頁> 外文學位 >A simulation approach to modeling contingency strategies for managing electronic part supply chain disruptions.
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A simulation approach to modeling contingency strategies for managing electronic part supply chain disruptions.

機譯：用于管理電子零件供應鏈中斷的應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.
機譯：由于與長壽命產(chǎn)品相關的制造和支持活動的性質(zhì)，需要可靠且一致地提供零件。但是，組成長壽命產(chǎn)品的零件容易受到各種供應鏈中斷的影響。為了最大程度地減少這些不可避免的中斷對產(chǎn)品生產(chǎn)和支持的影響，制造商可以實施主動的緩解策略。謹慎選擇緩解策略（二次采購和/或緩沖）是關鍵，因為它會極大地影響零件的總擁有成本。本文開發(fā)了一個仿真模型，該模型可以進行權衡分析，并針對特定零件和產(chǎn)品場景確定二次采購和緩沖的最佳組合。此外，與基于仿真的方法相比，本文探討了傳統(tǒng)分析模型的有效性，以選擇有效的最佳緩解干擾策略。進行了一些案例研究：1）測試了流行的分析限制假設的影響，以及2）在實際零件管理的背景下實施了實際的破壞數(shù)據(jù)。第一組案例研究表明，仿真模型能夠克服傳統(tǒng)分析模型中普遍存在的重大方案限制：有限的視野（包括非零WACC），固定的支持成本以及不可靠的備用供應商是確定有效最優(yōu)方案的重要組成部分。給定中斷方案的中斷緩解策略。第二組案例研究證明了在實際的電子零件供應鏈方案中選擇適當?shù)木徑獠呗缘闹匾浴０咐芯康慕Y果不僅證明需要采用基于仿真的方法來進行中斷建模，而且還有助于將仿真模型鞏固為電子零件分銷商的有效決策工具。

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  • 作者

    Allison, Hannah Grace.;

  • 作者單位

    University of Maryland, College Park.;

  • 授予單位 University of Maryland, College Park.;
  • 學科 Engineering Mechanical.;Engineering Industrial.
  • 學位 M.S.
  • 年度 2014
  • 頁碼 118 p.
  • 總頁數(shù) 118
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類
  • 關鍵詞

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