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dzsj
说明: 关于电子设计方面的一些知识,希望对大家有帮助(On some knowledge of electronics design, we want to help)
- 2011-03-23 13:51:17下载
- 积分:1
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LMIs-application
说明: 应用线性矩阵不等式(LMI)分析系统的鲁棒性(Linear matrix inequality (LMI) analysis of system robustness)
- 2011-04-12 19:10:44下载
- 积分:1
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layout_weight
安卓当中的layout_weight用法,一道经典的面试题(Andrews among layout_weight usage, a classic face questions)
- 2015-03-23 11:20:29下载
- 积分:1
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InternetofThings_summary
The functions design of software system is shown in Fig.8. There are some automatic or intelligent algorithms for analyzing and processing the sensed data to be implemented in the system. They are self-adaptive
- 2010-03-09 17:16:32下载
- 积分:1
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Fortran95
正在从事科学计算的朋友学习fortran必备的书籍,除了书籍之外,还有原书的例程,好不容易在网上淘到的(Are engaged in scientific computing friends learning fortran necessary books, except books, there is the original book routine, hard-line to Amoy)
- 2020-12-04 20:49:24下载
- 积分:1
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Python灰帽子中文
说明: python灰帽子入门,主要讲反汇编以及IDAPRO的插件编写(python for security for beginners)
- 2018-12-30 16:10:35下载
- 积分:1
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HTML5
情人节表白攻略,大家来试试吧,很有意思的(Valentine' s Day confession Raiders, everyone to try it, very interesting)
- 2014-09-17 23:29:22下载
- 积分:1
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Archivio
Albero construction c++
- 2013-04-21 00:17:44下载
- 积分:1
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新GRE阅读理解36套
说明: GRE复习资料,祝各位亲们复习愉快!!!(GRE revision material)
- 2019-06-01 16:18:21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