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鏟式播種機(jī)數(shù)字化設(shè)計(jì)實(shí)例檢索策略研究
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of Spade Punch Planter for Digital Design Case
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    摘要:

    在基于實(shí)例推理的機(jī)械系統(tǒng)數(shù)字化設(shè)計(jì)過程中，實(shí)例的檢索策略和檢索方法對(duì)于檢索的有效性和可靠性具有決定性影響。結(jié)合面向?qū)ο蟮膶?shí)例表達(dá)方法，研究實(shí)例檢索過程中機(jī)械零部件特征屬性相似度的確定方法，提出將模糊數(shù)學(xué)、灰色關(guān)聯(lián)分析應(yīng)用到特征屬性相似度的計(jì)算中。引入層次分析法和基于相似度離差信息方法確定特征屬性的組合權(quán)重。以鏟式播種機(jī)設(shè)計(jì)為例，驗(yàn)證了所提出的實(shí)例檢索算法具有良好的實(shí)例分辨能力和檢索成功率。

    Abstract:

    In the procedure of digital design of machinery system based on case-based reasoning (CBR), retrieval strategy and method of case had decisive influence on validity and reliability of retrieve. Combined with object-oriented case representation approach, determination method for resemblance level of machinery parts characteristics during case retrieval procedure was analyzed, fuzzy mathematics and grey relational analysis methods were introduced into calculation of resemblance level of characteristics properties. Combination weight for characteristic properties of the machinery parts was determined through hierarchy analysis process and deviation information method based on similarity values. The case retrieval calculation method had high discernment and verified successfully through design procedure of spade punch planter.

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李成華,楊宇,張曉冬,張國(guó)梁.鏟式播種機(jī)數(shù)字化設(shè)計(jì)實(shí)例檢索策略研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(8):31-34. of Spade Punch Planter for Digital Design Case[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(8):31-34.

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