secondary representation 中文意思是什麼
secondary representation
解釋
次選表示方式- secondary : adj 1 第二（位）的，第二次的；中級的 （opp primary）。2 副（的）；從屬的；附屬的；輔助的；補充的...
- representation : n 1 表示，表現，描畫，描寫；畫像，肖像；雕像，想像，想像力；【心理學】表象。2 上演，演出；扮演。3...
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As an important component of the above researches, this paper covers following aspects : ? firstly, product design theories are summarized, status and development trend of machinery product design are analyzed, and application of knowledge based design method in machinery product design is put forward. ? kbe ( knowledge based engineering ) theories such as knowledge acquisition, representation and storage are discussed, kbe concept is integrated with ug secondary development technology, and design knowledge is induced and stored to establish the design knowledge base. ? product case representation is researched, a hierarchical tree type product case library for complex products is established, retrieve strategy for cases of the nearest filed is put forward and corresponding algorithm is given
本文的主要研究內容及成果如下: ?對產品設計理論和方法進行了總結和概括，分析了機械產品設計的現狀和發展趨勢，將基於知識的設計方法應用到機械產品的設計中; ?研究了知識獲取、表達、存儲等kbe理論，並將kbe思想應用到ug二次開發中，將設計知識歸納存儲，建立了設計知識庫; ?研究了產品實例表示，建立了復雜產品層次樹狀產品實例庫，介紹了最近鄰域實例檢索策略並給出相應的演算法; ?研究了基於知識重用的三維產品建模技術，研究了在設計過程中的設計資源的重用，計算過程的重用，計算數據的重用，推理過程的重用等等;介紹了基於設計重用的凸輪三維模型的實現方法。
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