| 基于模糊查询的工程材料数据库 |
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| 引用本文： | 任煜,褚学宁,蔡莉霞,王滨,邓建国,陈运远,陈俊伟. 基于模糊查询的工程材料数据库[J]. 机械工程材料, 2006, 30(12): 91-93,94 |
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| 作者姓名： | 任煜 褚学宁 蔡莉霞 王滨 邓建国 陈运远 陈俊伟 |
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| 作者单位： | 上海交通大学机械与动力工程学院,上海,200240;上海材料研究所,上海,200437 |
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| 摘 要： | 针对目前工程材料数据库无法表达自然语言中模糊概念的现状，提出材料性能和模糊集合的匹配以及模糊语句向SQL语句转换的方法，建立了模糊查询模型。基于此开发了具有模糊查询功能的工程材料数据库，将模糊化查询语句精确化，对查询条件进行定量评判，从而完成材料选定。并在此数据库中，以曲轴选材为实例，验证了所提方法的可行性。
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| 关 键 词： | 工程材料 模糊查询 数据库 |
| 文章编号： | 1000-3738（2006）12-0091-04 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2005-11-072006-10-09 |
Engineering Materials Database on Fuzzy Query |
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| REN Yu,CHU Xue-ning,CAI Li-xia,WANG Bin,DENG Jian-guo,CHEN Yun-yuan,CHEN Jun-wei. Engineering Materials Database on Fuzzy Query[J]. Materials For Mechanical Engineering, 2006, 30(12): 91-93,94 |
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| Authors: | REN Yu CHU Xue-ning CAI Li-xia WANG Bin DENG Jian-guo CHEN Yun-yuan CHEN Jun-wei |
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| Affiliation: | 1. Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Research Institute of materials, Shanghai 200437, China |
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| Abstract: | The fuzzy concept in nature language could not he expressed in current material databases. The method of matching of materials performance parameter and fuzzy sets and transforming nature language into SQL language was presented. Then an engineering material database which had fuzzy queries function was developed to turn fuzzy language into exactitude and judged queries condition in quantitative analysis way. An example of choosing material of crank in the database is given to validate the method. |
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| Keywords: | engineering material fuzzy queries database |
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