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FDTD-
把 Maxwell 方程式在时间和空间领域上进行差分化。利用蛙跳式(Leap frog algorithm)--空间领域内的电场和磁场进行交替计算，通过时间领域上更新来模仿电磁场的变化，达到数值计算的目的。(The Maxwell equations in time and space on the field differencing. Using the leapfrog (Leap frog algorithm)- Space field for alternating electric and magnetic fields calculated by the time domain electromagnetic field is updated to mimic the changes to achieve the purpose of numerical calculation.)
- 2013-11-04 09:40:37下载
- 积分：1
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非线性振动
非线性振动.pdf 刘延柱编写
恢复力与位移不成正比或阻尼力不与速度一次方成正比的系统的振动。尽管线性振动理论早已相当完善,在工程上也已取得广泛和卓有成效的应用，但在实际问题中，总有一些用线性理论无法解释的现象。一般说，线性模型只适用于小运动范围，起出这一范围，按线性问题处理就不仅在量上会引起较大误差，而且有时还会出现质上的差异，这就促使人们研究非线性振动。(Nonlinear Vibration. Compilation of PDF Liu Yanzhu)
- 2020-11-23 20:09:34下载
- 积分：1
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CH2CH5CH7
最小二乘法的参数辨识研究。逐个的程序实现了最小二乘法算法以及实现的研究。(Least squares method of parameter identification studies. Procedures achieved by least squares algorithm and realize research.)
- 2008-05-13 22:02:16下载
- 积分：1
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mesh_2d
二维贴体网格 fortran 源程序；偏微分方程生成网格，附详细的说明文档(body-fit mesh generation, two dimension)
- 2020-12-09 10:09:19下载
- 积分：1
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kalman
卡尔曼滤波的源程序，卡尔曼滤波是以最小均方误差为估计的最佳准则，来寻求一套递推估计的算法。它适合于实时处理和计算机运算。
(Kalman filtering of source code, Kalman filter based on minimum mean square error for estimating the best criteria to search for a recursive estimation algorithm. It is suitable for real-time processing and computing.)
- 2008-05-20 22:16:52下载
- 积分：1
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Variogram_regress
matlab环境下，克里金插值中用回归方法和线性方法拟合出的球状模型的系数。(Kriging the spherical model coefficients using regression fitting in matlab.)
- 2012-11-28 13:00:31下载
- 积分：1
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FEMCalc
应用于高速碰撞的相关子程序，考虑了在高速碰撞中单元畸变的沙漏模型。。(Related subroutines used in high-speed collision, taking into account distortion in high speed crash in the hourglass model unit. .)
- 2010-06-24 17:39:20下载
- 积分：1
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Main0326_CZT
雷诺方程的有限差分求解 织构化表面的模型数值求解(Finite difference numerical model for solving Reynolds equation solving textured surface)
- 2014-04-19 13:15:44下载
- 积分：1
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Connection-instance
基于Ansys有限元软件，利用MPC技术对SOLID-SHELL单元进行连接实例—简支梁(Based on Ansys finite element software, the use of MPC SOLID-SHELL unit connected instance- Charpy)
- 2012-12-19 15:31:24下载
- 积分：1
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Rectangle
根据输入的长宽，计算Rectangle面积周长等功能，并画出在txt文件中(Rectangle
Create a class Rectangle with attributes length and width, each of which defaults to
1
a. Provide member functions that calculate the perimeter and the area of the rectangle.
b. Also provide set and get functions for the length and width attributes. The set
functions should verify that length and width are each integer numbers larger than 0
and less than 20.
c. Write draw function to display the Rectangle:
in Assignment1. )
d. Write a driver program to test class Rectangle.)
- 2012-10-24 23:54:51下载
- 积分：1
