具知識管理之產品機構協同設計引導系統

近年來由於經濟與科技的快速發展，各產業間競爭日益激烈，3C電子產品的生命週期也日漸減短。基於產品設計時間的考量與消費者消費型態的轉變，產品設計也從傳統的“為製造而製造”轉換成“為製造而設計”的行為模式。而產品設計中，造型、機構、模具和成型之間一直都是相互影響的，一項產品若是能在設計初期就考慮到模具設計和射出成型的問題，必能有效的縮短產品的設計開發時間。企業如何在最短的時間內完成高品質的設計任務、快速推出優勢產品，已經成為產品研發設計的趨勢。隨著電腦繪圖技術發展的成熟，許多公司企業都已使用電腦輔助設計(Computer-Aided Design, CAD)軟體來進行產品模型的開發與設計。並且藉助網際網路科技的迅速發展，企業利用網路跨平台結合與整合資源的能力，也做了有效的管理與監控。因此，擁有一套結合CAD軟體，並且融合企業知識經驗所規劃出引導設計流程的客製化系統，將可以有效幫助企業培訓人才、產品快速開發、設計經驗傳承、降低開發成本並且達到高品質的準確設計，以提升企業本身的競爭力。本研究以企業間常用的兩大軟體Pro/E和UG，針對翻蓋手機機構設計進行系統化的快速設計，利用網際網路的技術與CAD二次開發工具建構出一個產品機構設計的協同環境，提供身處在不同環境的設計者可以進行設計開發的工作。並藉由資料庫的知識管理系統讓設計者可以存取相關知識經驗，希望藉由這些知識經驗提供給設計者一個準確的參考。機構設計系統透過由上而下設計(Top-Down Design)的設計架構，在設計初期利用概念模型的骨架方式，考慮到這個產品所有零件的外觀、大小、位置和零件間配合的關係；設計者可以經過引導系統介面，進行標準化流程的設計步驟指引進行開發，並且導入協同設計的概念，提升產品開發的速度。另外也建構特徵機構資料庫，設計者可以經過參數化的設計，針對常用的特徵機構進行有效與快速的設計開發。最後，以翻蓋手機為例，針對設計者使用機構設計引導系統與未使用機構引導系統，作時間與效率的差異的比較。結果發現使用機構引導系統在效能上約可以減少30%以上的時間，而設計者在面對設計困擾時，知識庫系統也能提供適當的準則與方法，大幅的減低錯誤嘗試機率與加速設計開發時間。

關鍵字

Top-Down Design ；知識管理；參數化設計；協同設計；二次開發

並列摘要

Due to the rapid development of economy and technology in the recent years, various industries compete day by day intensely. Moreover, the life cycle of 3C electronic products is gradually getting shorter and shorter. Based on the consideration of product design period and the transformation with consumers, the pattern of product design also transform from manufacturing for manufacturing to design for manufacturing. However, the influence in modeling, mechanism, mold and molding design is closely connected. If we are able to considerate the issues of mold design and considerate in the initial mechanism design period, then the time for developing products can be shorten efficiently. It becomes a trend that enterprise knows how to complete a task of high quality design and promote in the fastest and best way in the shortest time. With the development of computer graphic technology, many business companies have used Computer-Aided Design (CAD) to precede the development and design of product modeling. In addition, with the help of ever-expanding internet technology, enterprises has been using the network cross platform to manage, monitor, combine and integrate resources efficiently. Therefore, it can upgrade the competitive ability of enterprise to develop a dedicated system that combines CAD and integrates the designing processes according to the knowledge and experiences of business. This approach will help enterprises train talented person, develop products at better speed, spreads experience of design, and decrease the cost of development to reach the highest quality of standard design. This study uses the two popular software in business, Pro/E and UG, to aim at the fast and systematic mechanism-design of cell phone. We have also integrated the collaboration environment of internet technology and the re-development tools of CAD to construct a navigating mold-design system. The system provides opportunities for designers who come from different environment to be able to proceed their works at the same manner. Furthermore, this research allows access for designers to related knowledge and experience which can provide standard reference material. Through the design structure of top-down design, mechanism design system is able to use the framework of conceptual part to examine the exterior, size, position, and the co-ordination between parts during the first stage of designing. By navigating system, designers proceed the designing procedures to guide the progress of development, and moreover, to lead in the general concept of co partnership designing, and speed up the development of products. In addition, mechanism databases are established, and through the design of parameter, designers can proceed with the development of designing by using commonly used mechanical feature. In conclusion, two cell phones are taken as an example. Comparing the help of designers using Mechanism Design Navigating System with which doesn’t, using Mechanical Design Navigating System can reduce more than thirty percent of time. Moreover, when designers come across difficulties in process, the knowledge-based system can appropriately give suggestions, greatly reducing the chances of errors and mistakes and also speeding up the time.

並列關鍵字

Knowledge Management ； Top-Down Design ； Collaborative Design ； Re-development ； Parametric Design

參考文獻

[1] E. M. Shehab, H. S. Abdalla, “Manufacturing Cost Modeling for Concurrent

Product Development”, Robotics and Computer-Integrated Manufacturing, Vol.

collaborative design”, Journal of Materials Processing Technology,Vol.139,

pp.613–618 ,2003.

[4] Y. Yang, S. Zhang, Z. Li, S. Gao, “Task Planning for Top-down Collaborative

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具知識管理之產品機構協同設計引導系統

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