云制造环境下模具加工任务与制造资源服务匹配研究与应用

针对传统模具企业加工任务需求的不断变化,更多个性化的模具加工任务被提出,不同区域企业间缺乏沟通与合作,传统的模具企业仅仅依靠自身拥有的加工资源,难以满足复杂多变的加工任务的需求。引入云制造模式,对模具加工任务的分类、编码规则以及任务间的相互关系进行研究,建立模具制造企业订单项目模型,利用UML建模技术,对模具加工任务进行形式化描述,确定模具加工任务的约束关系,并提出了模具加工任务与制造资源服务匹配的3种模式,以及金银铜质制造资源服务检索算法,结合层次分析法、专家评估法和熵权系数法的主客观综合方法计算最优指标权重系数,得出的结果作为最优服务。结果表明:有效地促进企业间的协同工作,企业生产制造方式更加丰富化,有效提高闲置加工资源的利用率,降低生产成本。

基于动态集成框架的云制造服务过程追溯与匹配研究

为有效控制制造资源虚拟化过程,考虑不同制造资源的形态,提出了云制造资源动态集成框架,研究了基于RFID的云制造服务过程追溯机制。在此基础上,建立了云制造资源服务能力多目标评价体系,并通过评价指标加权和计算云制造资源优先值,为制造任务匹配最优云制造资源节点。最后,结合云制造应用实例,验证了云制造服务动态集成体系的合理性和优选算法的可行性。

Organizing of Virtual Enterprise for Customized Artificial Joint and Scheduling of Manufacturing Resources Based on Manufacturing Grid

In order to improve efficiency of developing customized artificial joint, a virtual enterprise is organized based on the manufacturing grid. The application-oriented framework of the virtual enterprise is created for organization of the virtual enterprise. The manufacturing system of the virtual enterprise is built up based on the exterior grid and manufacturing subsystems of member enterprises are set up based on the interior grid. Furthermore, according to characteristic matching of manufacturing resources, the scheduling flow is studied in detail and the related scheduling strategies are established. The scheduling procedure is divided into distributed scheduling stage and local scheduling stage.Based on the manufacturing grid, the organization of the virtual enterprise for customized artificial joint and the corresponding scheduling strategies can be utilized to shorten developing cycle and reduce produce cost.