【導(dǎo)讀】畢業(yè)設(shè)計(jì)(論文)外文翻譯。桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙

　　

【正文】 chniques. These research activities range from studying specific areas of mould design to investigating mould design as a whole integrated system. They can broadly be classified into three areas: the functional and initial mould designs。 the algorithms to automate mould generation。 and system development of mould design. Hui and Tan [2] presented a heuristic search approach based on sweep operations to develop automated mould design systems for determining parting direction, parting line, side core, etc. Huang et al. [3] used solid modelling techniques to build mould plates and library of standard mould ponents. Chen and Liu [4] have developed a cost model, which depicts the relationships between cost factors and product development activities as well as their relationships with product geometry, for costeffectiveness design for injection moulding. Fu et al. [5] proposed an efficient methodology which systematically presents the undercut feature definition, classification, undercut feature parameters, and the recognition criteria of all types of undercut features for undercut feature recognition in an injection mould design system. Chen et al. [6] presented a method for determination of parting direction based on dexel model and fuzzy decisionmaking. Li JC [7] presented a neural work approach for modelling and optimization of injection mould gate parameters. Li CL [8] 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 11 used a featurebased approach to design the cooling system of injection moulds. Chung and Lee [9] proposed a framework of collaborative design environment for injection moulding in which geographically distributed, multidisciplinary designers can collaborate with one another. Ma et al. [10] described the development of a standard ponent library for plastic injection mould design using an objectoriented approach. Low and Lee [11] introduced a methodology of providing the initial design in 3D solid model instead of 2D drawings using the standardization method. Ashaab et al. [12] described a supporting plastic engineering development system to facilitate the sharing of injection moulding information and knowledge between interested parties via the Inter for the collaborative design of injection mould. Li et al. The KB system has demonstrated great potential to assist the designer to interact with a CAD system for conceptualized design as well as the final engineering design of a mould by using engineering rules of thumb with extensive analytical means. In addition, there is still relatively few research works on Interbased intelligent system for injection mould design. 4. Architecture of the Interbased mould design system . The system of Overview At the present time, most CAD systems provide only the geometric modelling functions which facilitate the drafting operations of mould design, and do not provide mould designers with necessary knowledge to develop good mould designs. Conventional puteraided engineering packages are usually good at data processing for informationintensive problems or at number manipulation for formulationintensive problems. The former prehends the puteraided drafting and graphics, and data reduction and transformation。 while the latter involves numerical (or mathematical) modelling and analysis. However, in design problem, especially in mould design which involves a substantial practical knowledge ponent about functions and structure of a mould, human heuristic knowledge and empirical type of knowledge are needed in addition to the informationintensive and formulationintensive knowledge. Therefore, conventional puteraided design technology is unsuitable for processing heuristic and empirical type of knowledge which is critical in the mould design problems. In general, the major advantage of the KB system for mould design over conventional puteraided design systems is the 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 12 explicit representation and manipulation of a body of knowledge, representing the human Interbased mould design system using Inter technology and knowledgebased approach can provide an effective and feasible tool to aid the collaborative development of injection moulds in the small and mediumsized enterprises to satisfy the stringent requirements of nowadays petitive global market. Moreover, there is a consistent need to check and update the information to ensure that the data is accurate and updated as mould manufacturers and standard ponents suppliers continually improve and upgrade their equipments and processes. By taking full advantage of the fast evolving puter work and information technologies, an Interbased mould design system could have the ability to continually update and upgrade the large amount of information related to injection mould design in a prompt and convenient manner. An Interbased mould design system using Inter technology and knowledgebased approach can provide an effective and feasible tool to aid the collaborative development of injection moulds in the small and mediumsized enterprises to satisfy the stringent requirements of nowadays petitive global market. Moreover, there is a consistent need to check and update the information to ensure that the data is accurate and updated as mould manufacturers and standard ponents suppliers continually improve and upgrade their equipments and processes. By taking full advantage of the fast evolving puter work and information technologies, an Interbased mould design system could have the ability to continually update and upgrade the large amount of information related to injection mould design in a prompt and convenient manner. . System architecture In this stBased on the practical mould design procedures and the issues to be considered age, the architecture of an Interbased intelligent injection mould design system is proposed as shown