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首页> 外文学位 >Development of logical models for CNC machine tool motion control system with application to virtual machine tool design.
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Development of logical models for CNC machine tool motion control system with application to virtual machine tool design.

机译：数控机床运动控制系统逻辑模型的开发及其在虚拟机床设计中的应用。

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摘要

This dissertation focuses on the modeling and simulation of CNC machine tool motion control system in conjunction with machine tool dynamics. A new concept, logical model, is proposed. It is defined as an intermediate layer between function analysis models and implementation models. The logical model, which inherits from the analysis model, is a type of neutral representation of functionalities of the control system. It also incorporates major factors which are closely related to the hardware implementation. With the logical models, the performance of a CNC machine tool as a mechatronic system can be accurately simulated in the design stage. This result overcomes the drawback of highly abstracted functional analysis models and makes the logical model attractive to the virtual machine tool design.; Based on the concept of logical model, a general framework of the virtual machine tool design and simulation environment, which includes not only machine tool dynamics models but also control system models, is proposed. This part of dissertation discusses first the development of logical models for major components in a motion control system, and the configuration method of the logical model based simulation system. Also discussed are the interaction mechanism between logical model objects and the simulation strategy which guarantees the CPU time consumption to an acceptable level.; The developed virtual motion control system is applied to the virtual machine tool design. A virtual machine tool prototype has been built. The effectiveness has been verified through the conducted virtual design and analyses.
机译：本文结合数控机床动力学，对数控机床运动控制系统进行建模与仿真。提出了一个新的概念，逻辑模型。它被定义为功能分析模型和实现模型之间的中间层。从分析模型继承的逻辑模型是控制系统功能的中性表示形式。它还包含了与硬件实现紧密相关的主要因素。使用逻辑模型，可以在设计阶段准确地模拟CNC机床作为机电系统的性能。该结果克服了高度抽象的功能分析模型的缺点，并使逻辑模型对虚拟机工具设计具有吸引力。基于逻辑模型的概念，提出了虚拟机床设计与仿真环境的通用框架，该框架不仅包括机床动力学模型，还包括控制系统模型。论文的这一部分首先讨论了运动控制系统中主要部件的逻辑模型的开发，以及基于逻辑模型的仿真系统的配置方法。还讨论了逻辑模型对象和仿真策略之间的交互机制，该机制将CPU时间消耗保证在可接受的水平。所开发的虚拟运动控制系统被应用于虚拟机床设计。已经构建了虚拟机工具原型。通过进行虚拟设计和分析已验证了有效性。

著录项

  • 作者

    Liang, Jiangang.;

  • 作者单位

    University of California, Davis.;

  • 授予单位 University of California, Davis.;
  • 学科 Engineering Mechanical.
  • 学位 Ph.D.
  • 年度 2005
  • 页码 123 p.
  • 总页数 123
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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