PWR堆芯燃料组件非线性梁模型研究

为描述燃料组件的非线性特性，采用有限元方法建立燃料组件横向梁模型，并引入迟滞模型，用于模拟燃料组件横向变形时的非线性效应。计算结果表明:该非线性梁模型能够更准确地获得组件的弯曲变形和受力，有助于开展燃料组件事故分析。      

PWR堆芯燃料组件非线性梁模型研究

In order to describe the nonlinear characteristics of the fuel assembly, a lateral beam model of assembly is built by the finite element method. The beam model is embedded with the hysteretic model to simulate the nonlinear effect occurred at lateral deformation. The calculation shows that the bending deformation and force can be derived from the nonlinear beam model, which is beneficial for the analysis of fuel assembly accidents.     

基于极值思想的高压油管压力控制

文章针对2019年"高教杯"全国大学生数学建模竞赛A题——高压油管的压力控制,运用了动态平衡原理、夹逼原则及临界条件下的极值思想,构建了流体力学模型、基于分段函数积分及连续微分方程的燃油流量计算模型、基于运筹学理论的目标规划模型等,并综合运用了MATLAB、EXCEL和LINGO等软件进行数据拟合和编程求解,得出单向阀开启时长的控制方案,使高压油管内压力在一定情况下尽可能稳定为某一常量。