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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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PI
说明： 本程序是模拟常数PI的计算，可以精确到小数点后很多位！(This procedure is a simulation of constant PI calculation can be accurate to a lot of places after the decimal point!)
- 2008-12-14 20:35:09下载
- 积分：1
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stm32f4xx_hal
STM32 is simple and practical to use, and can be used for reference on balancing vehicles.
- 2020-06-23 07:40:01下载
- 积分：1
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caibei
非常经典的C++程序，十分实用对于练习程序来说。(good programme)
- 2013-09-14 21:23:56下载
- 积分：1
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vba_pdf_orc_src
说明： OCR programe for access in vba 5
- 2020-04-13 08:13:22下载
- 积分：1
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snake
很简单的贪吃蛇,用的都是WINDOWS的API,不过是早期写的,可能可读性上差点,新手可以看(Snake is very simple)
- 2011-07-09 18:38:28下载
- 积分：1
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cyfvbkhon
1．原料基本信息维护；
2．供应商基本信息维护；
3. 仓库信息维护；
4．原料入库管理；
5．原料出库管理；
6. 入库信息查询、出库信息查询、库存信息查询。
所有管理包括（增加、删除、修改、查询）。
(A.Raw materials, basic maintenance
Two. Supplier of basic maintenance
Warehouse information maintenance
4. Raw material storage management
5 The raw materials out of the database management
(6) the storage of information inquiry, the library information inquiries, queries of inventory information.
All management (add, delete, modify, query).
)
- 2012-05-13 08:45:14下载
- 积分：1
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myTask0
有的科技图书会附有索引，其中列出书中重要术语出现的页码，便于读者查看。试设计一个类似的程序。输入是一个英文文本文件，输出是文件中关键字及其出现的行号的列表并按照关键字有序排列。程序运行方式：>index inputfile keys outputflie
(Some books will be accompanied by technology index, which lists important terms appear in the book pages, easy to readers to view. Try to design a similar procedure. English text input is a file, the output is a file that appears in the keywords and their line numbers list and ordered according to keywords. Program run mode:> index inputfile keys outputflie)
- 2013-10-28 21:15:13下载
- 积分：1
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VB
说明： EPSON VB6.0 OPOS开发源代码，很好用的(EPSON VB6.0 OPOS development source code, very good use)
- 2013-09-17 14:50:12下载
- 积分：1
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p53
这是一个贪吃蛇的游戏 希望大家喜欢 非常适合新手学习的哦(This is a snake code, suitable for beginners to hope that we support a lot
)
- 2013-06-20 21:24:53下载
- 积分：1
