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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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sdsdsdsad
其中包括图像压缩的基本编码方法如Huffman编码算术编码\JPEG 2000H.261压缩编码标准小波变换编码\运动估计算法视频图象采集的VC实现等.-including the basic image compression coding methods as Huffman coding arithmetic coding JPEG 2 000 H.261 coding standard Wavelet Transform Coding motion estimation algorithm Video Image Acquisition is the VC now other(including the basic image compression coding methods as Huffman coding arithmetic coding JPEG 2 000 H.261 coding standard Wavelet Transform Coding motion estimation algorithm Video Image Acquisition is the VC now other)
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Csdn刷下载积分工具,请慎重使用.后果自负(Csdn brush tool to download Points)
- 2010-01-13 22:44:13下载
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华为OJ训练平台的基础篇的所有题目答案，已总结为各种类型，写成子函数，可以直接调用(Huawei OJ Basics training platform for all the questions answers are summarized for all types, written subroutines can be called directly)
- 2014-11-24 14:55:52下载
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一本非常NB的关于计算机的离散数学与应用书籍！(Discrete Mathematics and its Applications is a focused introduction to the primary themes in a discrete mathematics course, as introduced through extensive applications, expansive discussion, and detailed exercise sets. These themes include mathematical reasoning, combinatorial analysis, discrete structures, algorithmic thinking, and enhanced problem-solving skills through modeling. Its intent is to demonstrate the relevance and practicality of discrete mathematics to all students. The Fifth Edition includes a more thorough and linear presentation of logic, proof types and proof writing, and mathematical reasoning. This enhanced coverage will provide students with a solid understanding of the material as it relates to their immediate field of study and other relevant subjects. The inclusion of applications and examples to key topics has been significantly addressed to add clarity to every subject.
True to the Fourth Edition, the text-specific web site supplements the subject matter i)
- 2009-12-07 21:32:17下载
- 积分：1
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Physics-of-crystal-growth
physics of cyrstal growth 英文版的教材，很实用(physics of cyrstal growth )
- 2016-10-12 20:51:12下载
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MT4
机器翻译的学习资料，是ppt格式的，对于机器人翻译，计算机专业的人很有帮助(Machine translation of learning materials, is ppt format for the robot translation, the computer professional who helps)
- 2010-01-09 11:02:34下载
- 积分：1
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guzhanglubo
这是一篇有关故障录波仪如何开发的硕士论文，论文行文清楚、逻辑分明，重点讲述了故障录波器的算法，值得看。(This is a fault recorder on how to develop the master's thesis papers lines clearly and logically distinct, and highlight the fault recorder algorithm worth observing.)
- 2006-09-06 14:25:50下载
- 积分：1
