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logandre-method-in-numerical-method
In numerical analysis and scientific computing, the Gauss–Legendre methods are a family of numerical methods for ordinary differential equations. Gauss–Legendre methods are implicit Runge–Kutta methods. More specifically, they are collocation methods based on the points of Gauss–Legendre quadrature. The Gauss–Legendre method based on s points has order 2
- 2020-06-30 03:00:02下载
- 积分：1
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VUMAT-vep_crack
ABAQUS vumat subroutine for MODEL FOR THE SHEAR DEFORMATION AND CRACK OF POLYMERS in finite element simulation
- 2016-04-23 10:31:30下载
- 积分：1
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single
使用奇异值分解来帮助求解最小二乘问题，特别是在方程系数矩阵不满秩的情况下。(SGELSD computes the minimum-norm solution to a real linear least
* squares problem:
* minimize 2-norm(| b- A*x |)
* using the singular value decomposition (SVD) of A. A is an M-by-N
* matrix which may be rank-deficient.)
- 2009-10-30 16:32:14下载
- 积分：1
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NLBCPE
说明： 建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的
传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相
垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播
的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学
的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷，
由射线理论给出的声线图可以给声场以直观、形象的理解。
本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves.
Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane.
Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation.
The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics
The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple.
The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)
- 2020-10-09 22:07:40下载
- 积分：1
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UEL-ABAQUS
abaqus用户自定义单元UEL程序实例(Abaqus user-defined units of education-the application instance)
- 2021-04-11 22:48:57下载
- 积分：1
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Cra
说明： forward处理程序，使用于煤炭、石油、天然气行业(forward processing procedures used in coal, oil, gas industry)
- 2010-03-24 08:55:37下载
- 积分：1
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顶盖驱动流
说明： 顶盖驱动流是不可压缩黏性的典型流动，可以用来检验各种数值算法计算精度和可靠性，目前尚不能求得它的解析解。基于Fortran 编程，采用 SIMPLE 算法求解二维方腔流动，得到流动达到稳定状态时各物理量的分布。(Lid-driven cavity flow is an incompressible viscous flow, which can be used to test the accuracy and reliability of various numerical algorithms. In this paper, based on the Fortran programming, SIMPLE algorithm was used to solve the lid-driven cavity flow. The distribution of physical quantities in the stable state was obtained.)
- 2019-03-18 22:14:26下载
- 积分：1
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exa_fml_ortho_damage_umat
ABAQUS纤维增强复合材料损伤失效UMAT(ABAQUS UMAT subroutine for fiber-reinforced composite failure analysis)
- 2016-07-10 17:31:36下载
- 积分：1
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Fortran自学与HETVAL水化热子程序代码
说明： 一部分是Fortran代码可以用自学，一部分是abaqus hetval子程序用来实现混凝土水化热的代码(Part of the Fortran code can be used for self-study, and part of the code for the abaqus hetval subroutine to realize the heat of hydration of concrete)
- 2020-12-30 21:59:00下载
- 积分：1
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microgrid_pscad
PSCAD，含光伏，风机，微汽轮机的微电网模型，包含PQ，vf控制。(pscad ,microgrid,pV,wt)
- 2021-04-19 17:28:51下载
- 积分：1
