Abstract
This paper is concerned with a sloshing suppression (liquid vibration damping) control of liquid container transfer with tilting. In this transfer system, liquid in the container is poured into a tray by tilting the container while the container is transferred. A natural frequency of sloshing caused by the transfer is varied at each time. Therefore, an estimation method of the natural frequency and a sloshing suppression control in liquid container transfer with tilting are proposed in this paper. The natural frequency is estimated at each time by using Time-Frequency-Analysis. In this paper, several methods in Time-Frequency-Analysis are tried to estimate the natural frequency. Then, the sloshing suppression control is designed by using the estimated sloshing natural frequency. The designed control system has the time varying notch filter corresponding to the estimated sloshing natural frequency. The effectiveness of the proposed control system is shown through experiments using a liquid container transfer system.
