chapter30

说明：  用MACCORMACK方法求解一维LAVAL管亚音速流动(solve one dimensional laval tube with the method in maccormack)

说明：  非线性调频信号的产生函数，以及绘制时域频域图像(Proudce a NLFM signal,use for radar test)

质心定位算法实现精度要求低的简单定位，加权质心定位比质心定位定位精度更高一些。(Centroid localization algorithm achieves simple positioning with low accuracy requirement, and weighted centroid localization is more accurate than centroid localization.)

说明：  求解二维拉普拉斯方程的matlab程序的实现(Solving two-dimensional Laplace equation)

纳入了机械损伤和应变速率的断裂UMAT子程序，不能用于平面应力。(The fracture UMAT subroutine incorporating mechanical damage and strain rate can not be used for plane stress.)

说明：  自适应（ self-adaptive）是指处理和分析过程中,根据处理数据的数据特征自动调整处理方法、处理顺序、处理参数、边界条件或约束条件,使其与所处理数据的统计分布特征、结构特征相适应,以取得最佳的处理效果(Self-adaptive refers to the automatic adjustment of processing methods, processing sequence, processing parameters, boundary conditions or constraints according to the data characteristics in the process of processing and analysis, so as to adapt them to the statistical distribution characteristics and structural features of the processed data, so as to achieve the best processing effect.)

说明：  混凝土的弹塑性损伤问题，可以很好解决弹塑性损伤问题(The elastoplastic damage of concrete can be solved well)

说明：  运用卡尔曼滤波器，在已有条件下，用matlab软件得到与已知的飞行器轨迹相同的预测轨迹(Kalman filter is used to predict the flight path of the aircraft)

包含一个电机仿真和详细报告。这个系统是以PMSM做为控制对像，以模型参考自适应算法实现PMSM的转子速度与位置的辨识，采用矢量控制，构建出PMSM的无传感器控制系统。(Contains a motor simulation and detailed report. This system uses PMSM as control image, and uses model reference adaptive algorithm to realize the identification of rotor speed and position of PMSM. Vector control is used to construct PMSM sensorless control system.)

说明：  基于仿真噪声信号的随机共振分析，结果准确可靠(Based on stochastic resonance analysis of simulated noise signal, the results are accurate and reliable)