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Wind-power
风电程序可以用来实现随即风电输出功率的生成(wind power)
- 2012-03-31 18:39:17下载
- 积分:1
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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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20041217204609
C语言程序设计谭浩强,两个字 ----经典(C Programming Language Tan strong word-classic)
- 2006-08-04 20:18:52下载
- 积分:1
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ZYNQ7Z020_mir_techilogu
米尔科技Xilinx SOC zynq 7z020 系列开发板原理图和技术使用手册。(Mir technology Xilinx SOC zynq 7 z020 series development board schematic diagram and the technical manual.)
- 2017-02-24 15:56:51下载
- 积分:1
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crypto_api_doc
说明: 介绍关于crypto_api的相关使用说明,着重于运用。(Introduce the relevant instructions on the crypto_api focus on the use.)
- 2010-04-26 11:12:48下载
- 积分:1
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TextureMapping
这是浙大鲍虎军教授演讲的纹理映射技术,内容十分详细。(This is Professor of Hu-Jun Bao Zheda speech texture mapping techniques, very detailed.)
- 2009-06-16 16:17:27下载
- 积分:1
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[图灵程序设计丛书].Python机器学习经典实例
机器学习的实践书,图灵程序设计用书。有需要的可以学习一下(Practice book of machine learning)
- 2019-03-22 09:40:40下载
- 积分:1
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iphone
说明: 学习iphone程序开发的重要书籍,上面有许多案例(Iphone application development to learn the importance of books, there are many cases of the above)
- 2010-03-19 03:14:56下载
- 积分:1
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cdb2004c007l
PPt制作要领,ppt制作模板,学术方面制作用处较多,特备是毕设答辩(PPt production essentials, ppt making templates, make academic use more special is the complete set of reply)
- 2011-05-04 22:11:13下载
- 积分:1
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fundamentals_of_sensor_network_programming
Reference book for sensor networks.
- 2014-11-04 19:38:16下载
- 积分:1