Reliability Allocation Method for CNC Machine Tools Based on Cloud Model and DEMATEL Method
Aiming at the problems of traditional reliability allocation method for CNC machine tool has problems such as ignoring the randomness and fuzziness of expert decision-making processes,as well as the mutual influence between subsystems,a reliability al-location method combining cloud model and decision-making trial and evaluation laboratory(DEMATEL)method for CNC machine tools was proposed.The cloud model was used to quantitatively represent the decision-making language of experts,the impact of random-ness and fuzziness in the decision-making process was reduced,and the TOPSIS method was used to obtain the reliability allocation co-efficients of subsystems.DEMATEL method was used to analyze the mutual influence between subsystems,and the reliability allocation coefficient was modified to obtain the comprehensive reliability allocation coefficient of the subsystems,and a reasonable allocation of re-liability for CNC machine tools was achieved.Finally,the advantages of the proposed method are demonstrated by comparing with tradi-tional methods.
CNC machine toolreliability allocationcloud modeldecision-making trial and evaluation laboratory
NETL
NSTL
万方数据
