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首页> 外文学位 >Optimum design and machining parameters of a permanent magnet brushless DC linear motor as a CNC feed drive.
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Optimum design and machining parameters of a permanent magnet brushless DC linear motor as a CNC feed drive.

机译：永磁无刷直流直线电机作为CNC进给驱动器的最佳设计和加工参数。

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摘要

A new heuristic has been developed to determine optimal operating parameters applied to a permanent magnet brushless DC linear motor (PMBDCLM) as a CNC feed drive. An FEA model has been developed utilizing an electromagnetic postprocessor to provide performance output of a PMBDCLM and DC servomotor. Based on the developed FEA models, velocity results have been utilized to provide feedrate levels for design of experiments (DOE). DOE has been conducted to provide force, tolerance, and surface finish data necessary for the performance comparison of a DC servo motor/ballscrew equipped CNC vertical milling machine and a PMBDCLM equipped CNC vertical milling machine. Based on the DOE, a knowledge base has been developed using force, tolerance, and surface finish data. Relationships between force, and spindle speed and feedrate with tolerance and surface finish indices were determined. A heuristic has been developed which represents a guide of applying a set of decisions through the knowledge base to provide a set of operating parameters that will meet user specified tolerance and surface finish requirements for given surfaces. Application of the developed heuristic to a milled part is illustrated. A PMBDCLM CNC retrofit for a conventional ballscrew feed drive system has also been developed to improve machine performance and cost.
机译：已经开发出一种新的启发式方法来确定应用于CNC进给驱动器的永磁无刷直流线性电动机（PMBDCLM）的最佳运行参数。利用电磁后处理器开发了FEA模型，以提供PMBDCLM和DC伺服电机的性能输出。基于已开发的FEA模型，速度结果已被用于为实验设计（DOE）提供进给率水平。进行DOE是为了提供性能比较所需的力，公差和表面光洁度数据，这些数据是比较配备DC伺服电机/滚珠丝杠的CNC立式铣床和配备PMBDCLM的CNC立式铣床的性能。基于DOE，已经使用力，公差和表面光洁度数据开发了知识库。确定了力，主轴速度和进给率与公差和表面粗糙度指数之间的关系。已经开发出一种启发式方法，它表示通过知识库应用一组决策以提供一组操作参数的指南，这些参数将满足用户指定公差和给定表面的表面光洁度要求。说明了开发的启发式方法在铣削零件上的应用。还开发了用于常规滚珠丝杠进给驱动系统的PMBDCLM CNC改造，以提高机器性能和成本。

著录项

  • 作者

    Tereshkovich, William.;

  • 作者单位

    New Jersey Institute of Technology.;

  • 授予单位 New Jersey Institute of Technology.;
  • 学科 Engineering Electronics and Electrical.;Engineering Mechanical.;Engineering Industrial.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 199 p.
  • 总页数 199
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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