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本文提出了应用动态影象Morié方法来确定流体浅水波动的特征值和对应的特征模态。对于分析弹性结构与流体的耦合振动,例如流体在薄壁容器中的扰动,提供了帮助。此方法比较简单,易于在工程问题中实现。稍加改进装置,可研究非周期性振动。实验结果和有限元解进行了比较,并且进行了一系列计算和实验,得到了浅水波动有限元方程的适用范围。
In this paper, the Morié method of dynamic image is used to determine the eigenvalues and corresponding eigenmodes of shallow water fluctuations. It is helpful to analyze the coupling vibration of the elastic structure with the fluid, for example, the disturbance of the fluid in the thin-walled container. This method is relatively simple, easy to implement in engineering problems. Slightly improved device to study aperiodic vibration. The experimental results are compared with the finite element solutions. A series of calculations and experiments are carried out, and the applicable range of the shallow water wave equation is obtained.