基于BPMN的数控机床能耗多源动态特性建模及应用

发布时间：2018-06-08 14:59

  本文选题：数控机床 + 能耗单元　； 参考：《机械工程学报》2017年11期

【摘要】：针对数控机床能量源多、能量消耗动态变化复杂的特点,提出了一种基于业务流程模型和符号(Business process model and notation,BPMN)的数控机床多源动态能耗建模方法。依据数控机床不同子系统的功率特性,将其划分为时变能耗单元和非时变能耗单元,分析了其工作状态及耦合关系对数控机床能耗的影响;基于BPMN2.0规范,构建了能耗单元工作状态BPMN流程模型和BPMN耦合模型,提出了能耗单元工作状态能耗数据及耦合关系时序数据与BPMN模型的数据集成方法,构建了数控机床能耗多源动态特性模型。以某数控铣床加工过程为例验证了所述模型及方法的有效性。
[Abstract]:In view of the complex dynamic change of energy consumption in NC machine tools, a multi-source dynamic energy consumption modeling method based on business process model and notationBPMN is proposed. According to the power characteristics of different subsystems of CNC machine tool, it is divided into time-varying energy consumption unit and time-invariant energy consumption unit, and the influence of its working state and coupling relationship on numerical control machine tool energy consumption is analyzed, which is based on BPMN 2.0 specification. The BPMN process model and BPMN coupling model are constructed, and the data integration method of energy consumption data and coupling relation time series data and BPMN model is proposed. The multi-source dynamic characteristic model of numerical control machine tool energy consumption is constructed. The validity of the model and method is verified by the machining process of a numerical control milling machine.
【作者单位】： 武汉科技大学机械制造及自动化学院;
【基金】：国家自然科学基金(51275365) 国家高技术研究发展计划(863计划,2014AA041504) 武汉科技大学校基金(2015X2049)资助项目
【分类号】：TG659
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本文编号：1996194