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spintgrl
三次样条插值函数源代码:对输入的数据采用三次样条插值处理,集成了样条,并返回积分值。(Cubic spline interpolation function source code: the input data using cubic spline interpolation processing, integrated spline, and returns integral values.)
- 2013-06-27 11:10:43下载
- 积分:1
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nonuniform_fdtd
时域有限差分方法程序,网格为非均匀剖分的(FDTD method program, a non-uniform partition of the grid)
- 2021-04-10 16:08:59下载
- 积分:1
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CHANGCHANGLENGTH
说明: 复合材料层内基于断裂韧性退化的VUMAT子程序(VUMAT subroutine based on fracture toughness degradation in composite laminates)
- 2021-04-07 17:49:01下载
- 积分:1
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polynomial_fitting
二元二次多项式曲面拟合法的Matlab实现,含有M文件及数据文件示例(Binary quadratic polynomial surface fitting Matlab, contain the M-file and the data file example)
- 2012-09-18 18:34:41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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GaijinGM11
改进的GM(1,1)程序,可实现时间序列的灰色等维新息预测,采用弃旧纳新的原则。(The improved GM (1, 1) program, can realize the time series prediction using grey information renewal, discarding the old and new principles.)
- 2018-01-22 15:44:58下载
- 积分:1
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uhard
用ABAQUS及其子程序解决热冲压热力耦合问题(Subroutine with ABAQUS and hot stamping coupled thermal problem solving)
- 2021-03-29 08:49:11下载
- 积分:1
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地球物理偏移相关程序包MandMVLab
地球物理偏移相关程序包,能实现时间偏移、深度偏移、及逆时偏移等,编写语言:Matlab。(Geophysical migration coding package, time migration, depth migration, reverse time migration, the writing language: Matlab.)
- 2021-03-06 22:49:30下载
- 积分:1
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fft2d
fft的文件,fortran环境下运行!欢迎指正!(fft documents, fortran environment running! Please correct me!)
- 2021-05-08 18:18:35下载
- 积分:1
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MESH-FREE-MLS-SHAPE-FUNCTION
无网格法移动最小二乘近似(MLS)型函数计算子程序 (Meshless method moving least square approximation (MLS) type function calculation subroutine)
- 2013-09-27 10:32:13下载
- 积分:1