-
ABAQUS-UMAT-plasticity
帮助umat学习者快速入门,并且详细理解umat的内在运行机制(Umat help learners QuickStart, and a detailed understanding of the inner workings of the mechanism umat)
- 2021-04-05 16:49:07下载
- 积分:1
-
vxworks_bsp_developers_guide_6.9.pdf
VxWorks6.9 官方文档 BSP开发
vxworks_b developers_guide_6.9(VxWorks official documentation BSP developed vxworks_b developers_guide_6.9)
- 2017-03-20 18:24:25下载
- 积分:1
-
huaweiCPP(CHM)
华为C++培训资料C++语言中级教材讲授C++语言的运用技术,包括:类、对象之间的关系、对象的存储与布局、运算符重载、智能指针、仿函数、泛型编程,C++模式设计基本思想。
(C++ language intermediate materials to teach C++ language use of technology, including: classes, relationships between objects, object storage and layout, operator overloading, smart pointer, functor, generic programming, C++ mode design basic idea.)
- 2013-05-05 16:53:08下载
- 积分:1
-
stochastic_processes
北邮概率论与随机过程课程讲义,包括所有讲义(BUPT probability theory and stochastic processes lecture notes, including all handouts)
- 2013-12-14 10:17:25下载
- 积分:1
-
gscplex_tutorial
CPLEX的学习资料,最近用这个软件的人越来越多了,尤其是PPT文件,很适合初学者快速入门
(CPLEX learning materials, most recently with this software, more and more people, and especially the PPT file, it is suitable for beginners Quick Start)
- 2009-11-26 16:50:15下载
- 积分:1
-
opnetwork00_nazy
SIMULATION OF PACKET DATA NETWORKS USING OPNET
In this paper we describe the use of the OPNET simulation tool for modeling and analysis of packet data networks.
- 2010-03-15 06:59:36下载
- 积分:1
-
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
-
ansys
ansys壳单元分析箱梁的命令流,可修改箱梁参数(ansys shell command stream analysis of box girder, box girder parameters can be modified)
- 2016-09-08 11:40:31下载
- 积分:1
-
EDMA2
the PDF lecture is the explanation about Enhanced Direct Memory Controller(EDMA)
- 2010-01-28 21:14:02下载
- 积分:1
-
Waveguidecharacteristicsofradiowavepropagation
说明: 对流层大气波导,可以使电波在较小的衰减下实现超视距传播,从而对无线电电子系统的运作产生严重的影响。对于通讯电路,它使系统间的相互干扰题目变得复杂;对于探测系统,产生的则是雷达空洞、超视距探测等题目。因此开展大气波导环境中电波传播特性及其应用的探究具有重大的理论意义和军事价值。
(Tropospheric waveguide, can make waves in the smaller attenuation achieve-the-horizon communication, and thus the operation of radio-electronic systems have a serious impact. For the communications circuits, which allows the mutual interference between systems has become a complex subject for the detection system is generated by the radar empty-the-horizon detection and other topics. Therefore, to carry out atmospheric environment of radio wave propagation characteristics of waveguides and its application to explore the theoretical significance and of great military value.)
- 2010-03-23 19:24:35下载
- 积分:1