-
diagnosis
计算几个复杂的天气诊断指数,最大对流稳定度指数,下沉对流有效位能,风暴强度指数等(The complexity of calculating the number of diagnosis index of the weather, the largest index of convective stability, subsidence CAPE, storm intensity index)
- 2009-04-28 18:45:00下载
- 积分:1
-
Mathematical-modeling
主要是基于matlab编程的机器学习的各种算法的实现,对补补基础很好(Matlab programming machine learning algorithm, Bubu basis of good)
- 2013-04-10 15:41:16下载
- 积分:1
-
object-oriented
面向对象的有限元程序设计。与传统的有限元程序相比,面向对象有限元程序更易于编写、更易于维护和扩充,程序代码的可重用成分更大。(object oriented finite element programming)
- 2014-10-31 15:53:47下载
- 积分:1
-
airgravity
文章由重力和重力梯度的基本理论出发,讨论了重力分量和重力梯度张量分量的2-D傅立叶变换
与重力位的傅立叶变换之间的关系。推导了航空重力梯度仪的测量原理,并对航空重力梯度测量的
应用做了简要的介绍(Article by gravity and gravity gradient of the basic theory, discussed the components of gravity and gravity gradient tensor component of the 2-D Fourier Transform and gravity places the relationship between the Fourier transform. Derivation of the airborne gravity gradiometer measuring principle, and airborne gravity gradient measurements application to do a brief introduction)
- 2008-05-25 01:33:15下载
- 积分:1
-
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
-
毕设程序
滚动轴承信号的保罗谱分析,hilbert Teager能量算子,信号平方,信号取绝对值等等方法求信号包络谱(hilbert transmission)
- 2018-10-26 18:33:28下载
- 积分:1
-
utxcr
主要是基于mtlab的程序,在matlab环境中自动识别连通区域的大小,pwm整流器的建模仿真。( Mainly based on the mtlab procedures, Automatic identification in the matlab environment the size of the connected area, Modeling and simulation pwm rectifie.)
- 2017-04-16 12:49:11下载
- 积分:1
-
hot-procssing-map
改程序可用于绘制热加工图,用于热加工领域(It is a code using for making hot processing maps used to characterize the hot deformation behavior)
- 2015-10-24 21:28:07下载
- 积分:1
-
thermo_mechanical
有限元热计算的算例,做有限元热分析的朋友比较有用(Finite element calculation of hot example, to do finite element analysis of hot Friend more useful)
- 2007-09-21 20:32:05下载
- 积分:1
-
fft
对机械中的振动信号进行傅立叶变换,作出频谱图进行分析。(Fourier transform of the vibration signal)
- 2009-10-19 19:01:34下载
- 积分:1