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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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VBrolemove
VB精灵操作方法通过方向键控制人物角色移动,VB原代码演示(VB rgp role move VB rgp role move VB rgp role move )
- 2011-06-18 14:53:41下载
- 积分:1
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MusicEncode
流水灯51单片机用蜂鸣器放音乐的程序,音乐编码有月亮代表我的心,两只蝴蝶等
(51 SCM with buzzer or music program, music encoding the moon represents my heart, two butterflies)((51 SCM with buzzer or music program, music encoding the moon represents my heart, two butterflies))
- 2017-12-22 19:54:36下载
- 积分:1
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cluto-2[1].1.1
一个用于进行聚类的工具,用C++编写的(One for the cluster tool, using C++ Prepared)
- 2008-03-16 12:51:33下载
- 积分:1
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txt_TO_dat
用于将txt格式数据,转换为.dat格式的数据,便于CASS处理。(Txt format for the data is converted to. Dat format, easy CASS processing.)
- 2013-07-30 09:12:54下载
- 积分:1
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Calculator
说明: 一个复杂的智能计算器,可以实现智能计算,以及优先级判断(A complex smart calculator, you can achieve intelligent computing, as well as to determine priority)
- 2010-03-25 12:05:50下载
- 积分:1
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hao
本PPT介绍了协方差函数及其计算公式,变异函数及其计算公式,克里格插值方法的过程,最后给了一个基于克里金插值的实例.(This PPT introduces covariance function and its formula for calculating the variation function and its formula, Kriging interpolation process, and finally given an example based Kriging interpolation.)
- 2009-09-24 12:02:35下载
- 积分:1
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TC_PLOT
本程序包含语音压缩和语音识别领域所需的LPCC,MFCC特征提取算法以及语音端点检测源码。在对语音数据进行特征提取前,可对语音数据进行16K到8K的降采样率处理,包含180阶FIR滤波器的频率压缩程序
(This procedure includes voice compression and voice recognition requirements in the area of the LPCC, MFCC feature extraction algorithm, as well as voice activity detection source. Voice data in the feature extraction before the voice data can be 16K to 8K sampling rate of the drop treatment, including the 180-order FIR filter frequency compression procedures)
- 2007-07-22 19:29:57下载
- 积分:1
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solve-9-9-Sudoku
用于解决9*9的数独,功能不完善,只能给出所有结果中的一种。(to solve Sudoku 9* 9 , function is not perfect.)
- 2011-02-11 15:23:36下载
- 积分:1
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rumen
说明: 基于MFC的对话框OpenGL,大家可以试着做一下,理解基本原理(MFC dialog-based OpenGL)
- 2010-03-20 02:30:49下载
- 积分:1