TD-simulation

滚动轴承故障诊断是机械故障检测中一个重要方面。使用小波包分析和包络分析相结合的方法提取轴承微弱振动信号, 克服了传统包络分析方法易丢失信号有效成分的缺点。包络信号的细化谱较好体现了轴承故障信息。(Bearing Fault Diagnosis of mechanical fault detection in an important aspect. The use of wavelet packet analysis and envelope analysis method of combining extracts bearing vibration signal weak to overcome the traditional envelope analysis method easy to lose the signal disadvantage of the active ingredient. Refinement of the envelope signal spectrum better reflects the bearing fault information.)

这是一个Matlab源码，用于计算直井稳定产能(Steady productivity of vertical wells)

说明：  三自由度并联机器人运动学正解，特别针对两转动一移动并联机器人(forward kinematics for a three degrees of freedom parallel robot, especially for parallel robot with two rotations and one translation)

Numerical Methods in Engineering with Matlab by Jaan Kiusalaas

各种方法的去噪程序 den1.m 使用半软阈值方法对图像进行去噪 den1_5_1.m 半软阈值的改进方法 对第一层重构图像进行均值滤波 den1_9.m 半软阈值的改进方法 将线性衰减的函数改为指数的 den1_10.m 半软阈值的改进方法 对第一层的重构图像再次进行小波阈值去噪 den2.m 用软硬阈值函数的改进方法进行去噪 den3.m 用广义阈值函数进行去噪 den4.m 用自适应特征阈值函数进行去噪 wdenoise.m 用Donoho阈值或Birge-Massart策略及软阈值或硬阈值函数进行去噪 meanfilter.m 均值滤波方法进行去噪(对比用) medfilter.m 中值滤波方法进行去噪(对比用)(Denoising procedures for various methods Den1.m using semi soft threshold method for image denoising The improved method of den1_5_1.m semi soft threshold for the first layer of the reconstructed image The improved method of den1_9.m semi soft threshold will be changed linear to exponential. The improved method of den1_10.m semi soft threshold for the first layer of the reconstructed image again for wavelet thresholding denoising Den2.m using the soft and hard threshold function to improve the method of denoising Den3.m using generalized threshold function for denoising Den4.m with adaptive feature threshold function for denoising Wdenoise.m with Donoho threshold or Birge-Massart strategy and soft threshold or hard threshold function for denoising Meanfilter.m mean filtering method for denoising (contrast) Medfilter.m median filtering method for denoising (contrast))

说明：  经过我很长时间的努力，今天简单的实现正弦波仿真(make out sine wave)

粒子群算法的优化方法，很实用，还有相关文档。(Particle swarm optimization method, it is practical, as well as related documentation. )

kriging插值算法。虽然用得较少，但是很实用。(kriging interpolation algorithm. Although less used, but very practical.)

结构能量响应程序，可求结构的输入能、结构耗能、动能、弹性势能(power )

复变函数与积分变换例题源码 关于一门数学科目的MATLAB语言实现(Complex Variables and Integral Transformation)