hw6

最小二乘拟合的matlab程序，用于数据处理。简单，易懂(The least squares fitting matlab program for data processing.Simple, easy to understand)

金属材料的随动强化有限元模型，适用于有限元分析的本构模型二次开发(Finite element model of kinematic hardening of metallic materials, constitutive model suitable for finite element analysis of secondary development)

复合材料强度计算的程序，采用与ansys软件集成后计算(Composite material strength calculation procedures, the use of ANSYS software and the integration of computing)

用于矩阵的一种cholesky分解方法，第一次上传请多关照(cholesky method for matrix decomposition)

可进行最小二乘法线性拟合输出，包含源代码及生成后的程序(Least-squares linear fit can be output)

由工况HWFET数据和整车参数来计算整车瞬时需求功率，并绘制出功率需求图。(The instantaneous demand power of the whole vehicle is calculated by the HWFET data and the vehicle parameters, and the power demand map is drawn.)

本例实现了插值函数，将不同次数的插值进行了显示，防止了龙格现象，研究生一般以此题为作业。(The cases to achieve interpolation function, the number of different interpolation were shown to prevent the Runge phenomenon, in order to graduate generally entitled operations.)

计算方法中的复数运算(calculation method in the plural Operational)

经典R-K法，通过它可以计算一些简单的常微分方程的数值解(Classical RK method, which can be calculated by simple numerical solution of ordinary differential equations)

说明：  实现重力式热管换热器设计计算功能，简单按照设计任务书，给出所需热管的结构尺寸，涉及的热管蒸发段和冷凝段长度分别为1m，绝热段长度30cm，内径20cm，外径25cm，热管工质为水。(Realize the gravity heat pipe heat exchanger design and calculation functions , simple design in accordance with the mission statement , given the size of the required structure of the heat pipe , heat pipe evaporator and condenser section lengths were involved 1m, adiabatic length 30cm, inner diameter 20cm, 25cm outside diameter heat pipe working fluid is water. )