摘要
应用可拓学中的物元理论和可拓集合理论,建立数控机床可靠性评价物元模型。引入可拓集合论中的关联函数计算关联度,并结合层次分析法确定指标权重,得到待评机床的可靠性等级。最后以两种国产数控机床为例进行应用研究,结果表明这种方法具有良好的应用性,能得到较合理的评价结果。
A matter-element model was built for the reliability evaluation of the numerically-controlled （NC） machine tool using the matter element theory and the extendible set theory of the extenics. Introducing the relevance function in the extendible set theory to calculate the relevance degree, combining the analytic hierarchy process to define the weights of indexes, and the reliability grade of the NC machine tool to be evaluated can be obtained. Taking two types of home-made NC machine tools as examples to do the practical application study of the proposed method, the results show that the method possesses good practicability, can give the reasonable evaluation on the reliability of the NC machine tool.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2011年第1期106-109,共4页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(50875110)
'高档数控机床与基础制造装备'科技重大专项项目(2010ZX04014-011)
吉林大学科学前沿与交叉学科创新项目(200903165)
关键词
机床
数控机床
可靠性评价
可拓模型
层次分析法
machine tool
numerically-controlled machine tool
reliability evaluation
extendible model
analytic hierarchy process（AHP）
