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NURBS110707
高速切削加工技术是一种先进的制造技术，具有强大的生命力和广阔的应
用前景，已成为切削加工的主流。数控插补技术是数控系统实现轨迹运动控制
的基础，插补运算是CNC系统软件实现运动控制的核心模块，插补算法的优劣
将直接影响到CNC系统的性能。因此，实现一种高精度和高速度的插补方法是
插补的关键所在。
本文在分析传统基准脉冲插补、数据采样插补的算法的基础上，着重研究
了三次NURBS曲线实时插补技术，针对部分算法的不完整或效率低，提出了
一种简单快捷的插补算法。采用NURBS曲线的矩阵表达式，将整个插补过程
分解为插补预处理和实时插补。在插补预处理中完成了大量的计算，预处理的
计算结果直接应用于实时插补，使插补算法满足了NURBS曲线插补的实时性
要求，再辅以必要的轮廓误差控制，实现了加工速度自适应于加工路径的
NURBS曲线直接插补。
本文讨论的插补算法采用C++语言实现，并在VC++6.0的编程环境中实现
了插补算法的计算机仿真，验证了算法的正确性和可行性。(The high speed cutting is one of advanced manufacture technique,which has the powerful vitality and the broad application,and already became the mainstream of machining.The interpolation technology of NC is the foundation of path s control in the CNC system,and the interpolation operation is the core module of
CNC system software,which comes the motion control true.The interpolation
algorithm,whose function is good or bad,directly influences the performance of CNC system.So,a kind of interpolation method with the high accuracy and high speed is the key of interpolation.
Based on analyzing the traditional pulse interpolation and data sampling
interpolation,this paper emphasizes on the NURBS curve real-time interpolation
technology.In view of the partial algorithms which is incomplete and the low efficiency,this paper propose a simple and quick interpolation algorithm.Using the
matrix representation of NURBS curve,the whole interpolation process is divided into appropriate pretreat)
- 2011-07-07 11:46:17下载
- 积分：1
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ziliao
中小学教学资料1000篇(pdf)主要针对教师的教学经验、工作总结和相关教学的论文。(Teaching and learning materials in primary and secondary schools 1000 (pdf) mainly for teachers of teaching experience, and summing up the work of teaching and related papers.)
- 2008-12-29 20:10:37下载
- 积分：1
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Python灰帽子-黑客与逆向工程师的Python编程之道
说明： 想学习黑客技术，进行逆向编程，同时提高编程技术的可以下载学习(Want to learn hacker technology, reverse programming, while improving the programming technology can be downloaded to learn)
- 2019-05-20 10:32:21下载
- 积分：1
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Python与机器学习实战
python与机器学习实战教程，机器学习通过Python语言实现，通过大量的实例再现机器学习强大的生命力(Python and Machine Learning Practical Course. Machine Learning is realized by Python Language, and the powerful vitality of machine learning is reappeared through a large number of examples.)
- 2019-05-13 09:59:03下载
- 积分：1
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GraphicalLayoutEditor
Graphical Layout Editor extends Graphical Editor With Palette.
- 2014-01-15 10:01:46下载
- 积分：1
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Prentice.Hall.PTR.AJAX.Creating.Web.Pages.with
While I was in college, sometime during the Pliocene, I took a science fiction class. The interesting thing about this class is that one student didn t realize until midterms that it wasn t a physiology class. I bring this up only because if you ve picked up this book expecting Corinthian helmets and hoplites, which, incidentally, have one-third less fat than regular hops (useful information for Hydras on a diet), this is the wrong book.
- 2010-02-03 17:22:16下载
- 积分：1
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1
说明： GYZ 203－2004 数字电视广播电子节目指南规范，在我没上传前，好像是下载不到的(GYZ 203-2004 standard digital television electronic program guide, I did not upload before, seems to be downloading less than the)
- 2010-04-07 13:49:05下载
- 积分：1
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2011-2012tongxinyuanli
本书讲述移动通信原理，系统地介绍了移动通信的历史，现状，未来，详细地分析了移动通信的基本技术原理(Book about mobile communications theory, systematic introduction to the history, current status of mobile communication, the future, detailed analysis of the basic technical principles of mobile communication)
- 2013-02-28 12:46:44下载
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基于excel和vba的高级金融建模
图书 伦敦商学院 基于excel和vba的高级金融建模(Advanced financial modeling based on Excel and VBA)
- 2020-06-19 11:20:02下载
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1
说明： EMC_EMI培训教程。一共8集，此为第1部份。(EMC EMI training course)
- 2014-12-31 16:12:08下载
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