双摆

说明：  惯导解算，速度更新，位置更新，卡尔曼滤波(INS hen for the whole navigation system, the modules of trace-generation and SINS calculation are programmed using Matlab language.)

说明：  对Rsoft仿真数据进行调用处理，更清晰绘制所得结果(Call and process the Rsoft simulation data, and draw the results more clearly.)

根据高斯光束的特性，在matlab中作出束腰半径为0.5mm的高斯光束在束腰处的三维光强分布图。(According to the characteristics of the Gauss beam, the three-dimensional intensity distribution of the Gauss beam with the waist radius of 0.5mm at the waist is made in MATLAB.)

可以读取gmesh软件产生的网格数据，读取.msh(Can read grid data generated by gmesh software, read .msh)

平面波从石英玻璃入射到空气中的P、S分量的反射波相位和透射波相位随入射角度的变化(The phase of the reflected wave and the phase of the transmitted wave of the plane wave from the quartz glass to the air in P and S vary with the angle of incidence.)

说明：  用来指数曲线拟合，包括曲线平滑 扣基底 参数拟合 绘制曲线(Used for exponential curve fitting, including curve smoothing)

说明：  利用matlab对轴系当量模型扭转振动的振型和频率进行计算(Calculation of torsional vibration modes and frequencies of shafting equivalent model by MATLAB)

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)

说明：  一个基于有限元方法的平面问题求解器，支持网格类型为二维四边形四节点单元和四边形八节点单元的有限元网格： 前处理——用Abaqus建模编号并导出数据 在Matlab中读取数据文件 计算单元刚度矩阵（采用高斯积分），组集结构刚度矩阵 组集结点载荷向量，引入位移边条 求解结点位移，单元应力应变 后处理——绘制应力应变位移云图，与Abaqus结果对照(A plane problem solver based on finite element method)

利用matlab软件的Curve Fitting工具对声速剖面进行拟合，仿真其真实情况，同时对三维数据进行了仿真拟合。(The sound velocity profile was fitted by the Curve Fitting tool of Matlab software, and the real situation was simulated. At the same time, the three-dimensional data was simulated and fitted.)