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《Journal of Mechanical Engineering》 2010-21
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Process Expert System in NC Camshaft Grinding on the Basis of Rough Set and Case-based Reasoning

DENG Zhaohui1 ZHANG Xiaohong1 CAO Defang1 CAO Hui2 (1. College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082; 2. Huda Haijie Manufacture Technology Co.,Ltd,Changsha 410082 )  
For the difficult issues of process selection about NC camshaft grinding,on the basis of synthesizing the advantages of rough set (RS) theory and case-based reasoning (CBR),a new RS-CBR process expert system is put forward. In the system,the discrete algorithm and its reduction of RS is used to carry out automatic calculation of process feature attribute weights; the CBR is used to calculate the similarity of process cases. A series of experiments are accomplished by using uniform design principle on CNC8312A NC camshaft grinder,and several groups of data are obtained to establish process case database. On this basis,the RS-CBR model of NC camshaft grinding is established to match grinding process intelligently. A satisfied result is obtained by applying the matched process case to actual production.
【Fund】: 国家高技术研究发展计划资助项目(863计划 2007AA04Z143 2009AAC44306)
【CateGory Index】: TG596
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