臺灣博碩士論文加值系統

本研究以玻璃基板製造廠物料運輸輸送系統作為研究的個案，運用個案公司的維修紀錄與備品採購之歷史資料，並篩選物料搬運系統之關鍵零件集合。對於物料搬運系統之關鍵零件集合中的零件，運用維修紀錄估算零件故障個數與故障間隔時間之歷史資料，建立該關鍵零件故障間隔時間的機率密度函數。運用關鍵零件故障間隔時間的機率密度函數、維修時間與採購前置時間，建立物料搬運系統的模擬模式。採取窮舉法測試不同關鍵零件備品庫存數量的組合，以模擬模式測試在5年之內物料搬運系統的故障維修時間超過8小時的次數。由窮舉法所測試的備品庫存數量組合，選擇運用最小成本達成「5年之內物料搬運系統的故障維修時間超過8小時的次數不超過5次」的基準，作為最佳的備品庫存數量組合。系統模擬的決策架構與研究結果，在備用品庫存水準的決定，可以提供個案公司訂定設備維護備品庫存水準的參考。

This study employed the material handling facilities in a TFT-LCD factory as a case study. We screened the set of critical parts for the material handling system from the historical data from the procurement and maintenance logs. Then, we conduct fitting analysis on the number of parts used for maintenance, the time between failures of the part to get the probability distribution of failure events for the critical parts. We formulated the corresponding simulation model for the material handling system based on the results of fitting analysis on the part consumption, the time between failures. Then, we used an enumeration approach to test different combinations of inventory levels of spare parts using the simulations, recorded the number of events in which the breakdown of the system lasts more than 8 hours (in short, BMT8). We pick the best combination of inventory levels of spare parts that meets the required conditions BMT8 is no more than 5 times with the minimum inventory holding cost. The framework and results of the proposed system simulation could serve an important support and reference on the decision of inventory levels of spare parts for the case company.

摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VI
表目錄 VII
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 4
1.3 研究對象與範圍 5
1.4研究步驟與方法及章節架構 6
第二章 文獻與回顧與評估 8
2.1 存貨管理 8
2.1.1存貨的目的與功能 8
2.1.2 ABC分類 9
2.1.3安全庫存 11
2.2 設備整體效率 12
2.3 物料搬運系統效能 14
2.4備品庫存控制的相關研究 16
2.4.1科技製造業 16
2.4.2傳統產業 18
2.5小結 19
第三章 研究方法與流程 20
3.1研究流程 20
3.2 研究方法 22
3.2.1 窮舉法的定義 22
3.2.2模擬的定義 22
3.2.3系統模擬 23
第四章 個案公司物料搬運系統之運作與備品管理 25
4.1物料搬運系統之運作 25
4.1.1設備組成 25
4.1.2原料搬運 26
4.1.3半成品/成品搬運 27
4.2物料搬運系統備用品庫存管理現況 28
第五章 模擬模式建構與分析 30
5.1模擬模式建構 30
5.1.1 模式情境定義 30
5.1.2模擬模式之參數設定 31
5.2模擬結果分析 34
第六章 結論與建議 45
6.1結論 45
6.2建議 45
參考文獻 47
附錄一：窮舉法之數據實驗結果 50

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