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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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thunk_x64
x64实现Thunk的新思路,兼容x86,目前能使用的第一份x64下的thunk代码。(x64 new ideas to achieve Thunk, compatible with x86, is currently able to use the first thunk code under x64.)
- 2009-04-17 03:44:53下载
- 积分:1
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C-language-comprehensive-training
C语言综合训练,包含文件调用、添加还有一些汇总统计等(C language integrated training, including file calls, add some summary statistics)
- 2014-01-02 15:42:40下载
- 积分:1
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ARM9
arm9的一些基础知识,有利于初学者用。有关ARM9微处理器系列方面的介绍。(arm9 some basic knowledge will help beginners to use. Aspects of the ARM9 family microprocessor introduction.)
- 2009-07-06 20:04:20下载
- 积分:1
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CGridCtrl_demo
CGridCtrl 工程,可以修改表格颜色,合并单元格,设置表格为日期,下拉框选择框等(CGridCtrl project, you can modify the table color, merge cells, set the table to date, drop-down box selection box, etc.)
- 2018-12-10 18:28:04下载
- 积分:1
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固体中的超声波
板波资料和书,里面有瑞利波和lamb波的相关资料(Plate wave data and books)
- 2017-12-10 21:53:54下载
- 积分:1
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20080315_cb73b1efdc0f8a73d269cUMWDJTLK4NL
银行核心系统入门简介 本文的目标读者是准备从事银行核心系统开发、维护的从业人员。(This article is intended for preparing to engage in core banking system development, maintenance practitioners.)
- 2010-02-28 09:45:09下载
- 积分:1
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hhhhhh
该编程使用VC++编写代码,该编程主要作用便是将灰度图像的各灰度值统计出来,以方便对该灰度图像的了解 (The programming code using VC++ The main role is to be programmed for each grayscale image gray value statistics out to facilitate the understanding of the gray image)
- 2013-11-04 19:59:36下载
- 积分:1
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c-language-commonly-used-algorithm
c语言常用算法(总结了很多数学,工程应用算法)(c language commonly used algorithm (summed up a lot of math, engineering algorithms))
- 2014-02-22 14:58:20下载
- 积分:1
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machinevision
北理的老师贾云德的机器视觉书,word版本,希望对大家有点用处。(North teacher Jiayun De Li Machine Vision book, word version, we hope to be of some use.)
- 2010-10-28 15:47:53下载
- 积分:1