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研究生:王羿晴
研究生(外文):Wang, Yi-Ching
論文名稱:導入保存技術與品質改善下損耗性產品於非完美製造系統之最佳存貨管理模式
論文名稱(外文):Optimal inventory models with/without preservation technology and quality improvement investments for a deteriorating item in an imperfect production system
指導教授:游兆鵬博士
指導教授(外文):Yu, Chao-Pen
口試委員:陳宗輝博士張谷光博士
口試日期:2013-06-03
學位類別:碩士
校院名稱:德明財經科技大學
系所名稱:物流管理系
學門:商業及管理學門
學類:行銷與流通學類
論文種類:學術論文
論文出版年:2013
畢業學年度:101
語文別:中文
論文頁數:93
中文關鍵詞:損耗性非完美生產產品檢驗缺貨補貨保存技術品質改善
外文關鍵詞:DeteriorationImperfect productionInspectionBackorder replenishmentPreservation technologyQuality improvement
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一般生產過程中瑕疵品的產生通常無法避免,產生瑕疵品的原因有很多,從投入的原料品質、老舊的生產設備、操作人員的熟練度等等,皆會直接影響到產品產出的品質進而影響整體生產成本。尤其近年隨著經濟快速發展,全球對原物料需求大增導致原物料短缺以及價格上漲,讓企業的生產營運成本大增。因此,針對損耗性商品之非完美生產系統,製造商如何規劃符合經濟效益的生產系統及存貨模式來滿足需求並落實精實生產、有效管理存貨、降低生產成本提高利潤空間,將是企業永續發展的重要關鍵因素。
本研究針對相關文獻資料進行探討,並發展出一套單階非完美生產系統進行檢驗、重工、允許缺貨補貨的生產存貨模式及流程。假設及考量商品具有損耗之特性,允許缺貨問題發生,透過檢驗將分類出來的瑕疵品進行重工,當缺貨達到一定水準時則開始新的生產進行缺貨補貨並將缺貨全數補足。同時,製造商針對商品損耗率及生產瑕疵率問題進行保存技術及品質改善等投資,有效降低生產總成本、提高生產良率及生產存貨量以滿足需求。透過情境模擬建構數學模型,利用最佳化方法求得最佳生產存貨模式及最小生產系統總成本。最後經由數值範例與敏感度分析了解各個參數對本模式的影響,並做出結論、建議以及未來研究方向。

The generation of imperfect quality product during the manufacturing process is inevitable, the factors made up with imperfect raw materials, insufficient manufacturing processes, poor production devices, inadequate qualification of employees…etc., are directly impact the quality of finished products and increase the overall cost of whole production system. Particularly the global market has witnessed shortage of raw materials with fluctuating costs that makes situation worsened to the manufacturing sectors in recent years. In response to these concerns, manufactures are keen to build up the cost-effective production system with a robust inventory model, as how to implement lean production, structure an effective inventory management, and squeeze the production overall cost for a good margin of profit from imperfect production systems are critical elements for enterprises.
In this study, a single stage of imperfect production system proceeds with inspection, rework, allowable backorder, and backorder replenishment rate for a deteriorating item are considered and set to simulate as a real situation derived a heuristic algorithm model for an optimal inventory when shortage caused by deterioration can be completely replenished. Meanwhile, the preservation technology and quality improvement investments are simultaneously incorporated to minimize the overall cost of whole production system improving the deterioration and defective rates effectively by rising up the production yields and shortening the lead time with an optimal solution to satisfy market demands is the objective of this research. Numerical examples and sensitivity analyses are given to validate the results of inventory system. The study ends with managerial implications for a manufacturing firm towards decision-making for determining optimal production policies for imperfect production systems and directions for future research.

摘要 I
ABSTRACT II
目錄 III
表目錄 V
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的與範圍 3
1.3 研究流程 4
2.1 損耗性產品存貨相關文獻 6
2.2 非完美生產存貨系統之相關文獻 8
2.2 非完美生產存貨系統之相關文獻 9
2.3 產品檢驗 11
2.4 瑕疵品重工 14
2.5 缺貨水準及補貨政策 16
2.6 保存技術 18
2.7 品質改善 19
2.8 研究方法 21
第三章 損耗性商品非完美生產系統存貨模式 22
3.1問題定義與描述 22
3.2 研究假設 25
3.3 參數符號說明與定義 26
3.4 存貨模式建構與推導 27
3.4.1 參數模型 30
3.4.2 存貨週期各項成本 38
3.5 數值範例 41
3.6 敏感度分析 45
3.6.1 正常生產期間時間長度之敏感度彙整 46
3.6.2 單位時間總成本之敏感度彙整 51
第四章 導入保存技術及品質改善之存貨模式 55
4.1 問題定義與描述 55
4.2 研究假設 58
4.3 參數符號說明與定義 59
4.4 存貨模式建構與推導 60
4.5 數值範例 66
4.6 敏感度分析 69
4.6.1 正常生產期間時間長度之敏感度彙整 70
4.6.2 單位時間總成本之敏感度彙整 75
第五章 結論、貢獻與未來發展 79
5.1 結論 79
5.2 貢獻 83
5.3 未來研究方向 84
參考文獻 85


中文文獻
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[2] 李旭華、杜振輝、李國樑、劉玉珠(2002),「不完美生產系統之品質改善及
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