【作者】 朱晓翠； 杨兆军； 陈菲； 王继利； 李雪； 张欢欢；

【Author】 ZHU Xiaocui;YANG Zhaojun;Chen Fei;WANG Jili;LI Xue;ZHANG Huanhuan;College of Mechanical Science and Engineering,Jilin University;Nanjing institute of technology,Mechanical engineering institute;

【机构】 吉林大学机械科学与工程学院； 南京工程学院机械工程学院；

【摘要】 针对一批故障数据同时符合多种分布的情况,对建立的数控机床可靠性模型实施模型优选。优选过程中结合熵的概念,提出熵权综合评价优选法。首先采用经验建模方法建立数控机床可靠性模型,然后确定并计算评价指标,同时借助于熵理论对评价指标赋权,最后应用综合评价模型确定最佳的分布函数。以某重型数控机床为例验证方法的可行性及有效性。更多还原

【Abstract】 For the phenomenon that a group of fault data complying with different distribution types,an optimal selection method is used for reliability model of CNC machine tools.Through combining the concept of entropy,entropy comprehensive evaluation method is proposed.At first,reliability models of CNC machine tools are established by experience modeling,and then determine and calculate the evaluation indexes,while entropy weights are got according to the theory of entropy.Finally the optimal distribution is determined by using comprehensive evaluation model.An example of a heavy-duty CNC machine tools is used for verifying the feasibility and effectiveness of the method.更多还原