Finite Element Modal Analysis and Dynamic Experimental for Liquid Sloshing

In this paper the dynamic characteristics of liquid sloshing in a level column tank is studied by experimental analysis and numerical simulation method.Liquid system modes of different full rates under level power are simulated.We combine some specific experimental designs and the scan laser measure instrument,and find a better way to directly measure the liquid wave fluctuation.Ansys FEA software is used to simulate preferably low-rank modes and local modes of liquid systems,and dummy-mass method is used to correct the low-rank frequencies of liquid sloshing.The FEA numerical simulation results and the experimental results showed that mode analysis of the liquid systems can be solved preferably by combining the two methods.