• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2015, Vol. 51 ›› Issue (11): 123-132.doi: 10.3901/JME.2015.11.123

• 数字化设计与制造 • 上一篇    下一篇

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数控机床多能量源的动态能耗建模与仿真方法

何彦1， 林申龙1， 王禹林2， 李育锋1， 王立祥1   

  1. 1.重庆大学机械传动国家重点实验室；
    2.南京理工大学机械工程学院
  • 出版日期:2015-06-15 发布日期:2015-06-15
  • 基金资助:
    国家自然科学基金(51105394)、国家高技术研究发展计划(863计划，2012AA041306)、江苏省“六大人才高峰” (2014-ZBZZ-006)和中央高校基本科研业务费专项资金(30920130111001)资助项目

Method for Modeling the Dynamic Energy Characteristics of Multi-energy Sources in CNC Machine Tool

HE Yan1, LIN Shenlong1, WANG Yulin2, LI Yufeng1, WANG Lixiang1   

  1. 1.State Key Laboratory of Mechanical Transmission, Chongqing University；
    2.School of Mechanical Engineering, Nanjing University of Science and Technology
  • Online:2015-06-15 Published:2015-06-15

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摘要： 机床能量消耗过程的评估和分析是机床能效优化研究的基础。现有研究提出的机床能耗模型主要是静态能耗模型，少数对机床动态性能耗的研究又主要集中在机床运行状态的动态性的建模，缺乏对机床能量源特别是数控机床多能量源的动态性能耗的研究。针对数控机床能量源多、加工任务及加工参数动态变化等特点，提出了一种数控机床多能量源的动态能耗建模与仿真方法。对数控机床能耗过程的动态性进行分析；在此基础上，结合面向对象着色赋时Petri网(Colored timed object-oriented Petri net，CTOPN)和虚拟部件方法建立数控机床多能量源动态能耗模型，其中CTOPN模型用于描述数控机床能耗过程机床和多能量源运行状态的动态特性，虚拟部件方法用于描述数控机床多能量源受加工参数影响的动态特性；通过CTOPN中“变迁”蕴含的信息来驱动虚拟部件模型实现对数控机床多能量源的动态能耗特性的建模。案例分析结果证明了该方法的可行性，上述模型可为数控机床动态能耗的预测、综合的能耗特性分析以及定量的能耗影响因素分析提供一种基础支持，具有较广阔的应用前景。

关键词: 动态能耗, 多能量源, 建模仿真, 数控机床

Abstract: Estimation and analysis of energy consumption for machine tool is the basis of energy efficiency improvement. The existing researches of energy model focus on the static modelling of energy consumption, and a few study of dynamic energy consumption model focus on the dynamic characteristics of operating states of machine tool, the study of dynamic characteristics of energy sources, especially multi energy sources of a CNC machine tool is scarce. Based on the characteristics of CNC machine tool (e.g. multi-energy sources, dynamically changed machining tasks and process parameters), a method for modeling the dynamic energy characteristics of multi-energy sources in CNC machine tool is proposed. The dynamic characteristics of energy consumption process of machine tool are analyzed. On this basis, the colored timed object-oriented Petri net (CTOPN) integrated with virtual component method is applied to model the dynamic energy consumption of machine tool. The CTOPN model is used to describe the dynamic characteristics of operating states of machine tool and multi-energy sources. The virtual component method is used to describe the dynamic characteristics of multi energy sources which is influenced by process parameters. The virtual component model is driven by the information of activity transitions in CTOPN model. The case study shows that the proposed energy model is effective and can provide fundamental support for dynamic energy consumption forecasting, comprehensive depiction of the energy profile and quantitative analysis of influencing factors and so on during the operation of a CNC machine tool, which has significance in practice.

Key words: CNC machine tool, dynamic energy consumption, modeling and simulation, multi-energy sources

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