Amplitude suppression of surface wave in a moving liquid container by input shaping

Abstract

The sloshing problem of the free surface of a closed container has been widely discussed in the industry Many scholars consider the sloshing of the free surface when discussing the problems of manufacturing and fuel storage Free surface sloshing is a complex and nonlinear problem This article wants to simulate the simulation analysis of the liquid surface movement in the traveling container so we need to make some appropriate basic assumptions about the entire container and then simulate the changes in the surface of the water wave The moving carrier on the conveyor belt will produce different liquid surface splashes due to different acceleration and deceleration motions and inertial forces during the movement This paper uses numerical calculations and finite volume method to simulate the sloshing of the free liquid surface of the traveling container And want to effectively suppress the sloshing of the surface but most methods of suppressing sloshing require the use of sensors but the input shaping does not require a sensor to effectively suppress the residual vibration of the liquid surface so this article uses four different input-shaping schemes compares the reduction of the surface oscillation of the container during travel and after it is stationary Then further use the center of mass of the container liquid to find the swing range of the center of mass trajectory and finally find the correlation with the maximum value of the liquid level on the two walls Try to find the smallest splash amplitude and find the most efficient transportation process

Date of Award	2020
Original language	English
Supervisor	Tian-Shiang Yang (Supervisor)