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creep
abaqus蠕变子程序,user中的实例(creep subroutine for abaqus user)
- 2021-04-01 22:29:07下载
- 积分：1
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共轭梯度法
说明： 共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(Conjugate gradient method Gradient) is a method between the steepest descent method and Newton's method. It only uses the first derivative information, but overcomes the disadvantage of slow convergence of steepest descent method, and avoids the disadvantage of storing and calculating Hesse matrix and solving inverse of Newton's method. Conjugate gradient method is not only one of the most useful methods to solve large-scale linear equations, but also the most effective method to solve large-scale nonlinear optimization One of the algorithms of. Among all kinds of optimization algorithms, conjugate gradient method is very important. It has the advantages of small storage, step convergence, high stability and no external parameters.)
- 2020-06-27 15:46:08下载
- 积分：1
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math_shang
信息是个很抽象的概念，本文介绍了熵的概念，并介绍计算方法(information is a very abstract concept, this paper introduces the concept of entropy, and the calculation method introduced)
- 2007-06-08 14:46:52下载
- 积分：1
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FiniteElementAnalysis-(Abaqus)
这是一本关于大型有限元模拟软件ABAQUS的英语书籍，从入门介绍到应用实例，还可以学习英文。如果你需要你一定会喜欢的。(English contents: 1. Introduction 2.Bar Element 3.Beam Element 4.Rigid Jointed Frames 5.Stress and Strain Analysis 6.Weighted Residual Methods 7.Finite Element Approximation 8.Numerical Integration 9.Plane Problems 10.Axisymmetric Problems 11.Thin and Thick Plates )
- 2014-10-31 15:13:39下载
- 积分：1
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half-car
ANSYS中关于车桥耦合的接触法命令流，车辆模型为二分之一车(About the vehicle.the contact method in ANSYS command stream, with half vehicle model car)
- 2021-04-21 10:48:49下载
- 积分：1
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orderGaussian
解线性代数方程组的顺序高斯消去法。使用c++标准库的vector实现。(Solution of linear algebraic equations order Gaussian elimination. Use c++ standard library vector implementation.)
- 2014-05-23 21:11:06下载
- 积分：1
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ftcs-code
fortran based code for 1d heat equation
- 2014-10-06 02:17:56下载
- 积分：1
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FENZHI
分支界限费用矩阵的说明文档，非常实用,建议下载哦(Branch line cost matrix documentation, very practical, it is recommended to download Oh)
- 2013-09-13 14:24:50下载
- 积分：1
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Introduction_of_dbn
动态贝叶斯网络的介绍，包括现阶段研究状况与应用(Introduction to dynamic Bayesian networks, including the present status of research and application of)
- 2009-10-25 10:06:50下载
- 积分：1
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photonic_band_structure
用传输矩阵法计算一维光子晶体的带结构的程序,用matlab所编,文件解压后,程序写在word文档中,并附有在matlab下画的图,本人感觉非常有用(use of the transfer matrix method one-dimensional photonic crystal with the structure of the program, prepared by Matlab. unpacks the files, procedures written in word document, together with the painting under Matlab plans, I feel very useful)
- 2006-11-15 22:33:57下载
- 积分：1
