tvar1

大坝变形的精确预测对其安全评价方面发挥着重要作用。为了进一步提高大坝变形预测精度，提出了一种改进的灰狼算法优化支持向量机的预测模型。通过引入非线性收敛因子和采用动态加权策略，提升灰狼算法优化支持向量机惩罚因子和核函数参数的能力，并以优化的参数来建立支持向量机大坝变形预测模型。选取实例数据，在与布谷鸟算法、差分进化算法、粒子群算法、基本灰狼算法优化的支持向量机预测比较中，实验结果表明，改进的灰狼算法对支持向量机参数的优化是有效的，可以提高大坝变形预测精度。(Accurate prediction of dam deformation plays an important role in its safety evaluation. In order to further improve the prediction accuracy of dam deformation, an improved grey Wolf algorithm is proposed to optimize the prediction model of support vector machine. By introducing the nonlinear convergence factor and using the dynamic weighting strategy, the gray wolf algorithm is improved to optimize the capacity of the support vector machine penalty factor and the kernel parameter, and the support vector machine dam deformation prediction model is established with the optimized parameters. The experimental results show that the Improved Grey Wolf algorithm is effective for the optimization of support vector machine parameters, and it can improve the accuracy of the deformation prediction of the dam.)

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

分别对matlab和ansys两种平台的拓扑优化结果分析比较，为学习者提供了两种不同优化设计思路，过程详细清晰，易于学习理解(The analysis and comparison of topology optimization results between MATLAB and ANSYS two platforms provide two different optimization design ideas for learners. The process is clear and clear, and easy to learn and understand.)

一种虚拟同步发电机仿真模型，通过投切负荷达到频率波动的效果，然后VSG根据控制策略改变输出。(A virtual synchronous generator simulation model achieves the effect of frequency fluctuation by switching loads, and then VSG changes the output according to the control strategy.)

说明：  完成对四旋翼飞行器的数学建模，并在matlab矩阵实验室中进行仿真，进一步设计飞行控制系统。(Complete the mathematical modeling of quadrotor aircraft, and simulate in MATLAB matrix laboratory.)

说明：  转子系统启动时的瞬态动力学分析，有限元分析(Transient Dynamics Analysis of Rotor System at Start-up)

用于ABAQUS软件的子程序，可对金属材料的韧性断裂行为进行精确的计算，并预测其断裂行为。(The subroutine for ABAQUS software can be used to calculate the ductile fracture behavior of metal materials accurately and predict the fracture behavior.)

利用D-S证据推理数据融合算法实现目标识别(Target Recognition Using D-S Evidence Reasoning Data Fusion Algorithm)

说明：  本程序是完成网络的评价路径长度和聚类系数的计算。(This program is to calculate the average path length and clustering coeffient of a network.)

新的屈服准则ABAQUS子程序UMAT，含有多种较新的准侧，能很好运用(The new yield criterion ABAQUS subroutine UMAT contains a variety of newer standards and can be used very well.)