中文摘要：

制造过程中能耗的影响因素很多,加工工艺、工艺路线、工件加工特性等都会影响制造系统能耗。针对工件加工制造过程能耗优化问题,首先在工件加工特征层面,提出特征能耗单元概念,并建立特征能耗单元模型。然后利用物元法,结合工件几何特征类树,构建了以特征能耗单元为基础的工件几何特征能耗物元模型。从该模型中提取能耗影响因子k,优化工件几何特征,直观地达到控制工件特征来优化加工制造过程能耗的目的,为控制需加工实现的工件几何特征的目标能耗提供理论参考。最后,以轴类工件外圆特征车削加工为例验证分析了该模型的有效性。

英文摘要：

Many factors affect the energy consumption in the manufacturing process, such as processing technology, process route and workpiece machining characteristics, which will all affect the energy consumption of manufacturing system. According to the problem of energy consumption optimization for workpiece machining manufacturing process, firstly, put forward the concept of feature energy consumption unit and the model of feature energy consumption unit at the workpiece machining feature level. Then, by using matter element method, and combined with the feature of workpiece geometry class tree, construct workpiece geometry characteristics of the matter - element model of energy consumption on the basis of feature energy consumption unit. Extract energy consumption influence factor from the model, optimize the workpiece geometry features, intuitively achieve the purpose to optimize energy consumption of manufacuring process, by controlling the workpiece characteristic, which will provide the theoretical reference to control the goal of energy consumption for machining workpiece geometry features. At last, an example for machining the characteristics of cylindrical of shaft parts is performed to verify the effectiveness of the model.