Mij_Hess_Smith

说明：  已知单自由度受迫振动体系的运动方程的解，是由齐次方程的通解与特解组成。其次方程的通解在无阻尼、临界阻尼、低阻尼、超阻尼中各有不同。(It is known that the solution of the motion equation of a single degree of freedom forced vibration system is composed of the general solution and the special solution of the homogeneous equation. Secondly, the general solution of the equation is different in undamped, critical damping, low damping and super damping.)

说明：  matlab编程利用hess simth面元法(边界元法)计算球体及椭球体附加质量(Matlab programming uses hess_simth surface element method (boundary element method) to calculate the additional mass of spheres and ellipsoids)

功能为求解系数矩阵为三对角矩阵或者循环三对角矩阵的线性方程。 输入的四个参数均为行向量，分别对应系数矩阵的上副对角线，主对角线，下副对角线，以及方程等号另一侧的常数矩阵(The four parameters of the input are line vectors, which correspond to the upper diagonal lines of the coefficient matrix, the main diagonal line, the lower diagonal line, and the constant matrix on the other side of the equation.)

说明：  基于vof方法的平面两相流界面追踪程序，针对于Zalesak圆盘旋转问题，版权由原作者所有(45/5000 The copyright of a planar two-phase flow interface tracking program based on VOF method for Zalesak disk rotation is owned by the original author)

说明：  主要用于计算最常见的二维材料石墨烯纳米带的能带结构(It is mainly used to calculate the energy band structure of graphene nanoribbons, the most common two-dimensional material.)

高斯扩散模式适用于均一的大气条件，以及地面开阔平坦的地区，点源的扩散模式。排放大量污染物的烟囱、放散管、通风口等，虽然其大小不一，但是只要不是讨论烟囱底部很近距离的污染问题，均可视其为点源。(The Gauss diffusion model is applied to homogeneous atmospheric conditions, as well as to ground open flat regions, and to point source diffusion patterns. Chimneys, pipes, vents, etc. that emit large quantities of pollutants, although they vary in size, can be regarded as point sources as long as they do not discuss the pollution problems near the bottom of the chimney.)

说明：  超短脉冲在光纤中传输产生各种非线性效应，影响因素包括激光器的高斯脉冲，本模拟是初始啁啾脉冲的脉冲形状。(The transmission of ultrashort pulses in optical fibers produces various non-linear effects. The influencing factors include the Gaussian pulse of the laser. This simulation is the pulse shape of the initial chirped pulse.)

说明：  交直流混合微电网运行控制仿真算法，多模式运行(Operation control simulation algorithm of AC-DC hybrid microgrid, multi-mode operation)

说明：  通过拉格朗日方程模拟仿真双摆系统的运动过程，并生成poincare映射图(The motion process of double pendulum system is simulated by Lagrange equation, and Poincare map is generated.)

matlab语言编写，适合图形文章数据提取(Matlab language, suitable for data extraction of graphic articles)