Considering performance stability,a reliability allocation method was proposed for me-chanical system reliability allocation.The meta-action theory was introduced to decompose the struc-tures of mechanical system and the meta-action unit was used as allocation object,a two-level compre-hensive evaluation index model for meta-action reliability was established.Combining with the MCDM method,the reliability allocation coefficients of meta-action were obtained.Then,a stability model for the mechanical transmission system was established and the influence coefficient of each meta-action on the system performance stability was calculated.Finally,the reliability allocation coefficients were modified by using the influence coefficient of performance stability and a reasonable allocation of me-chanical system reliability was achieved.By comparing with the traditional methods,the effectiveness of the proposed method was verified.
关键词
多准则决策/机械系统/可靠性分配/性能稳定性/元动作
Key words
multi criteria decision making(MCDM)/mechanical system/reliability allocation/performance stability/meta-action
维普
万方数据