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《Journal of Zhejiang University(Engineering Science)》 2001-01
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Fuzzy optimization of tolerance in CAD/CAPP integration

LIU Yu-sheng,YANG Jiang-xin,WU Zhao-tong\;(Production Engineering Institute of Zhejiang Uni., Hangzhou 310027, China)  
Fuzzy factors in CAD/CAPP concurrent tolerance design are analyzed. The result shows that fuzzy factors are of objectiveness and unavoidableness in concurrent tolerance. A new mathematical model was presented for design and manufacturing tolerance design. To solve this model, two steps are used. The first step is to transform the fuzzy optimal model to non-fuzzy optimal model by using a kind of membership function which can change the absolute limit boundary to a transitional one. The second step is to solve the non-fuzzy optimal model using Monte Carlo simulation method. An example is given to illustrate the proposed model.
【Fund】: 国家自然科学基金资助项目 !(5 970 5 0 2 2 )
【CateGory Index】: TP391.72
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1 ;Design Method of Mechanical Part Fitting Based on Evidential Reasoning[J];航空制造技术;2010-05
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