工具機產業是一個國家的樞紐工業，工具機產業與製造業存著密不可分的關係，工具機精益求精的發展，帶動製造業在生產效能及產品精度的表現，使工具機產業培養了最專業的人才與最密集的技術，工具機產業的發展帶動國家對外競爭力的影響不容忽視，也因此工具機產業被視為國家工業化程度的指標。台灣工具機產業憑藉彈性製造及應變的能力，以擅於為客戶訂製產品且物美價廉見長，具有組裝產能迅速及零件取得容易的優勢。因此為提升國內工具機產業於國際舞台之能見度並邁向高精度的趨勢，導軌的最佳化設計成為一大重點。
本研究將設計一壓力均勻分佈之液靜壓導軌運用於中小型迴轉式工具機，透過具快速收斂、最少參數組合、多品質特性與全域性搜尋之灰關聯田口基因整合型最佳化法及有限差分數值計算方法，進行電腦模擬設計最佳的導軌構形，包括各油腔、回油槽尺寸參數與油腔數量配置，尋求具壓力均勻分佈的液靜壓導軌，有別於傳統液靜壓導軌油腔僅單一進油孔容易造成油腔內最高壓力集中於進油孔以及各油腔間回油槽尺寸間隔太大導致壓力分佈不均影響導軌性能。藉此獲得具高承載力、高剛性、高阻尼性及高平穩性之液靜壓導軌系統，並透過實驗的方式來驗證此系統的可行性及實用性。

The machine tool is the hub of industry in a country, the machine tool industry and the manufacturing affect eachother. manufacturing has make progress because the excellence in the development of the machine tool that cultivated the most professional people with the most intensive technical. Led to the development of the machine tool industry, the impact of the country's competitiveness can not be ignored, therefore the machine tool industry is regarded as indicators of the degree of industrialization of the country, Taiwan's machine tool industry with flexible manufacturing and adaptability, good at customized products and known of inexpensive price, get advantage of assembled quickly and gain parts easily. For the visibility in the international, enhancing the domestic of machine tool trend towards high-precision rail optimized design has become a major focus. This study will design a uniform distribution of pressure hydrostatic rails apply to small and medium-sized rotary machine tool, with fast convergence, the least parameter combination of multiple quality characteristics and the global search, HTGA/Gray method and finite difference numerical methods, then simulation to design the best rail configuration. Different from the traditional hydrostatic rail, the maximum pressure of the oil chamber focused on a single into the hole and back to the sump size the interval too big lead into the hole, make the oil cavity pressure uneven distribution of impact rail performance. Get to take this with a high load capacity, high rigidity, high damping capacity and high stability of hydrostatic rail system through experimental way to verify the feasibility and practicality of this system.

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