To solve the competition for machine tool resources and conflicts of customer benefits in cloud manufacturing, and to promote the balanced conversion of manufacturing service energy efficiency into customer benefits, a non-cooperative game-based energy-efficient scheduling method for machine tool resources in cloud manufacturing was proposed. a customer-benefit-oriented energy-efficient scheduling model for cloud manufacturing machine tools was constructed by classifying customer preferences into five types: time-sensitive, energy-efficient, cost-effective, quality-focused, and comprehensive. An improved non-cooperative game genetic algorithm was employed to solve the Nash equilibrium. The impact trends of differentiated discount strategies on scheduling outcomes were analyzed based on customer value classification. Simulation experiments conducted on the manufacturing of multiple cylinder piston rod parts for typical construction machinery products from Xuzhou Construction Machinery Group(XCMG) demonstrate that the proposed method increases the average customer manufacturing task benefit by 4.1% and reduces task energy consumption by up to 28%.
由上述研究发现,云制造中的机床设备和运输设备是制造过程主要的能耗主体和碳排放来源。目前研究大都以优化由多个制造任务构成的总目标(如最小化总完工时间)为主,对单个任务的目标需求考虑不足。而云制造中客户的差异化需求会引发资源的抢占,从而衍生利益冲突。为此,有学者针对云制造环境下的竞争问题探讨了基于博弈论的云制造资源优化配置问题。苏凯凯等[6]构建了云制造资源配置非合作博弈模型,分别以服务质量指标和柔性指标表示需求者和运营方的收益,采用非支配排序遗传算法求解。LIU等[7]提出了一种基于博弈论的云制造分布式资源和任务调度模型,并采用双蚁群算法求解纳什均衡。HU等[8]应用非合作博弈理论,建立云制造环境下的动态车间资源调度模型。张坤鹏等[9]构建了云制造需求者与运营方静态博弈模型,并采用改进的粒子群算法求解纳什均衡。舒萧等[10]构建了以云制造需求者为博弈方,加工路径为策略集,时间、成本、合格率和质量的加权为综合收益的非合作博弈资源调度模型。LIU等[11]建立了分布式 3D 打印云服务非合作博弈调度模型,以时间和成本作为收益函数,采用改进遗传算法求解。
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