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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/76607

    Title: 高訂單變動性及低量產需求環境下之長交期零件備料運輸決策 -以航空製造業為例
    Authors: 蔡乃清;Tsai, Nai-Ching
    Contributors: 工業管理研究所在職專班
    Keywords: 低產量屬性;備料運輸策略;訂單變動性;長交期備料;庫存成本;Low rate production;Long lead time;inventory backup strategy
    Date: 2018-07-20
    Issue Date: 2018-08-31 11:29:41 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 雖然目前民用航空飛機需求訂單仍有大量的需求,但因產品市場有其寡佔性,流通性小,產品銷售客戶幾乎為唯一,因此產量需求相較於其他產業而言十分的低,任何的訂單需求的變動,所造成的影響相對的大。同時原物料的取得有指定商源的要求;物料製廠資格及製程皆有認證要求,因此物料採購成本高及前置期長,庫存設置量也因此一因素而增加,衍生的庫存成本相對於銷售金額收入比是偏高的。
    ;Although there are mass demands in the field of commercial airplanes, the markets for the parts are consider oligopoly, low circulations, and the needs of products are generally from one single customer. Leading up to the demands in aerospace field relatively low compared with other fields, any requirement changes in orders will cause great impact. The specifications of raw materials, the qualifications of being a qualified suppliers and its fabrication/special processes adds up to high cost procurement. With long lead time on the raw materials, implementing safety stock is essential. Therefore, all these factors are reasons to why inventory costs are higher than sales revenue.
    The material supply chain are not based on geographic locations. To successfully retrieve materials to the warehouse, the logistic arrangement goes through air, sea, or land. Especially here in Taiwan, an island surrounded by sea and with limited resource, all necessity have to be imported. With the inventory shipped through different ways, the shipping cost takes up a significant percentage in the total cost. Thus, procurement strategy and inventory management are major factors to a profitable product.
    The objection of this thesis is to discussing ways of using procurement strategy and inventory management to overcome the challenges of risk of material shortage, high transportation cost (caused by the low demands), unstable order requirements, and long lead time of the aerospace industry. This study will analyze historical data to find reasonable periodic shipping pattern via sea and using air freight to cover emergency pull in/demands to fulfill the production demands. Theories will be applied to real life data to test the feasibility of the methods, and conclude with a system and/or strategy to overcome the material long lead time, unstable order specifications, high procurement cost, high transportation cost, and low demands of the aerospace industry.
    Appears in Collections:[工業管理研究所碩士在職專班 ] 博碩士論文

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