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thermal-damage-abaqus-umat
thermal damage abaqus-umat subroutine
- 2020-10-26 22:29:59下载
- 积分：1
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kalman_suppression
很好的东西，关于用卡尔曼算法做对消算法的...(Good things Kalman algorithm cancellation algorithm ...)
- 2012-11-01 09:51:51下载
- 积分：1
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energy-leakage--dual-tree
首先根据高斯白噪声频率充满整个频带的特性，通过双树复小波包变换对高斯白噪声进行分解，利用频带能量泄漏的定量分析方法，验证了双树复小波包变换具有较低的频带能量泄漏特性；其次利用双树复小波包变换逐层分解信号，对每层分解所得分量求其FFT谱的峭度，得到基于双树复小波包变换的谱峭度图，根据图中峭度最大的原则，可以自动准确的选择信号分解最佳层数和最佳分量；最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中，对齿轮故障振动信号进行分析，选择最佳分解层数和分量后利用希尔伯特包络解调，有效准确地提取了故障特征信息，验证了方法的可行性和有效性(The parameters of a filter were determined by experience, and that has a great influence on the
results of signal processing. The discrete wavelet packet transform has a larger energy leakage of frequency band,
which obviously affected the results of the envelope demodulation. It is necessary to have a method with a lower
energy leakage of the frequency band before envelope demodulation. The dual tree complex wavelet packet
transform (DT-CWPT) was a new signal processing method that had many good qualities. Because the energy
leakage of the frequency band was smaller when the signal was decomposed by a dual tree complex wavelet
packet transform, the dual tree complex wavelet packet transform was used to extract the fault feature information
in the field of fault diagnosis. In this paper, first, according to the characteristics of Gaussian white noise, whose
frequency was full of the whole frequency band, Gaussian white noise was decomposed by a dual-tree complex
wavel)
- 2014-05-28 17:13:41下载
- 积分：1
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jie
说明： 用四阶Runge-Kutta法解延迟微分方程组，用到的朋友看一下啊(Using fourth-order Runge-Kutta method for delay differential equations, a friend used to look at ah)
- 2008-11-05 23:32:53下载
- 积分：1
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cubef
一个挺好用的源程序打包器，北京联高软件公司的，fortran代码转换成chm文档。(A useful tool for converting fortran source files to chm document.)
- 2011-09-26 19:26:13下载
- 积分：1
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matinv
说明： 矩阵求逆，使用fortran语言编写，希望能对有需要的朋友有所帮助(Matrix inversion, written in FORTRAN language, hoping to help friends in need)
- 2020-12-11 17:49:18下载
- 积分：1
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Count
说明： 输入任意数学四则运算表达式可以得出结果,很方便很实用的一个程序的源代码。(you can get the answer.)
- 2010-04-23 19:51:08下载
- 积分：1
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jifen
各种数值积分，龙贝格积分。反常积分。高斯积分。三重积分。(Various numerical integration Romberg integration. Improper integrals. Gaussian integral. Triple integral.)
- 2012-12-02 15:54:40下载
- 积分：1
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Writing a UMAT
主要用来进行Umat子程序指导编程说明用的文件(The document is mainly used for writting a Umat project by fortran language.)
- 2017-11-20 21:37:56下载
- 积分：1
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zheng
正入射的自由曲面透镜设计，计算获得透镜的二维坐标(The free-form surface lens is incident on the design, the two-dimensional coordinates of the lens calculated)
- 2021-04-13 18:58:56下载
- 积分：1
