MT25QL02GCBB8E0_VG12.tar

UMAT-MISES--基于Mises屈服方程的弹塑性本构模型(UMAT for Mises the elastic-plastic constitutive equation based on the Mises yield funcion)

分析了永磁同步电机矢量控制的发展概况，然后从机电能量转换的角度出发，解释三相永磁同步电机的机电能量转换原理，推导拉格朗日运动方程。此外，列写出永磁同步电机在三相静止坐标系和dq坐标系下的数学模型。基于Simulink建立了转速电流双闭环矢量控制系统的仿真模型，通过对仿真结果分析，验证了永磁同步电机矢量控制系统性能的优越性(The development of vector control of permanent magnet synchronous motor is analyzed. Then, from the perspective of electromechanical energy conversion, the principle of electromechanical energy conversion of three-phase permanent magnet synchronous motor is explained, and the Lagrangian motion equation is derived. In addition, the mathematical model of the permanent magnet synchronous motor in the three-phase stationary coordinate system and the dq coordinate system is written. Based on Simulink, the simulation model of the speed and current double closed-loop vector control system is established. The simulation results are analyzed to verify the superiority of the performance of the permanent magnet synchronous motor vector control system.)

说明：  lab转xyz lab转lch，matlab平台的.m文件，函数形式，可以直接调用的。(Lab to XYZ lab to lch, matlab platform. m file, function form, can be directly invoked.)

国外Flash效果：鼠标控制明暗，鼠标放上去以后，那些白色的圆点会更加的明亮，鼠标移走后恢复原来的亮度，用鼠标来控制白色圆点的明暗，这种形式在Flash中见到还是比较多的。本压缩包内自带有Flash源文件。

说明：  K-Means聚类算法 语言matlab(matlab k-means algorithm)

有限元分析的matlab代码- 结构 本书旨在为读者提供一些有限元的matlab代码。 在简短介绍MATLAB之后，这本书说明了有限元。 用简单的脚本和函数实现一些问题。 .离散系统，如弹簧和杆 .梁和框架在二维和三维中的弯曲 .平面应力问题 .弯曲板 .Timoshenko明德林梁和板的自由振动，包括叠层复合材料 .Timoshenko梁和明德林板的屈曲(MATLAB Codes for Finite Element Analysis- Solids and Structures This book intend to supply readers with some MATLAB codes for finite element analysis of solids and structures. After a short introduction to MATLAB, the book illustrates the finite element implementation of some problems by simple scripts and functions. The following problems are discussed: .Discrete systems, such as springs and bars .Beams and frames in bending in 2D and 3D . Plane stress problems .Plates in bending .Free vibration of Timoshenko beams and Mindlin plates, including laminated composites .Buckling of Timoshenko beams and Mindlin plates)

1、客户数据从Excel或Access中导入 2、数据量比较大，约200多万条记录 3、实现分地区查询 4、实现其他条件查询 （关键字） 5、实现分地区查询的用户权限限制，即特定用户只能查找特定地区的客户信息（显示）(1, the customer data from Excel or Access to import 2, larger than the data, about 10,000 more than 200 records of 3, to achieve sub-region query 4, the realization of other conditions query (keyword) 5, to achieve sub-region query user rights restrictions that particular user can only search a specific area of customer information (show))

说明：  数据降维的实现，核主成分分析的MATLAB实现代码(Data dimension reduction implementation, kernel principal component analysis of Matlab implementation code)

这个函数返回n点2dw波段的傅里叶变换的DFT样本序列。通常情况下，以插值点的方式进行放大。-This function returns N point DFT samples of 2dw band of Fourier transform of a sequence. Typically, fft() returns N samples of Fourier transform ranging from 0 to 2pi. This function takes the N-point DFT samples and returns N-point samples corresponding to frequency band wc-dw to wc+dw.

C语言编写的,效果不错，希望大家多多指正哈!-C language prepared by the good results, I hope Members can correct Ha!