-
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
-
O网格椭圆型生成法及求解势流方程
自动生成NACA0012翼型的网格,并在网格的基础上求解势流方程,fortran编译,可自改(O grid that mainly generates NACA0012 airfoil)
- 2018-04-03 22:57:41下载
- 积分:1
-
state-space-striling1
说明: THIS IS STIRLING ENGINE SIMULATION CODE SOURCE FILE
- 2020-06-10 22:16:37下载
- 积分:1
-
sphere_rcs
使用Mie系列解决方案计算给定直径的完美球体的精确RCS
使用Mie系列解决方案计算给定直径的完美球体的精确RCS(SPHERE_RCS calculates the exact RCS for a perfect sphere of given diameter, using the Mie series solution, given by equations 4-19, 4-16, and 4-17 in section 4.2 of "Radar Cross Section," by Eugene F. Knott, John F. Shaeffer, and Michael T. Tuley (c1985 Artech House).)
- 2018-12-03 19:58:57下载
- 积分:1
-
Face objects with thought, with c++ implementation are the basic rules of poker
用面相对象的思想,用c++是实现扑克牌的基本玩法-Face objects with thought, with c++ implementation are the basic rules of poker
- 2022-03-18 06:40:22下载
- 积分:1
-
read_hdf5
读取HDF5格式数据,此处以打开ASTER GED为例,输出发射率为ENVI格式(Read HDF5 format data, here to open ASTER GED, for example, output emissivity data in ENVI format)
- 2021-04-21 12:38:49下载
- 积分:1
-
这个是DEM0451的程序,用于车辆底盘的控制器,非常好用哦,非常好的...
这个是DEM0451的程序,用于车辆底盘的控制器,非常好用哦,非常好的-This is DEM0451 procedures for vehicle chassis controller, very easy to use Oh, very good
- 2022-07-27 22:40:43下载
- 积分:1
-
锁控板v1.0
快递柜的开锁程序,采用 AT89S52单片机实现(The unlocking procedure of express cabinet adopts AT89S52)
- 2020-12-29 09:29:00下载
- 积分:1
-
Delphi仿Windows文件管理器
Delphi使用ListView控件和TreeView控件仿写的Windows文件管理器,也就是资源管理器,界面方面使用了三方控件,界面自己比较满意,也算是学Delphi3个月以来的小小成就吧,编写期间查阅了大量示例程序和教程,演示效果如截图所示。
- 2022-03-19 11:38:00下载
- 积分:1
-
DS18B20温度检测及其液晶显示
实现DS18B20实验测试和先面试基本部分和一个发挥,希望对大家有所帮助(Realize the Basic Parts and a Play of the 07 National Games)
- 2020-06-20 02:00:02下载
- 积分:1