Abstract
The natural frequency of sloshing can be estimated by using a multiple classification analysis as a representative statistical method. The data is treated by using several parameters which change with the tilting of a container, such as liquid level and diameter, et al. Moreover, the main factor which makes the natural frequency fluctuation is clarified by extracting required information from the obtained data by Principal Component Analysis. In order to suppress the sloshing, position feedback controller with a notch filter corresponding to the estimated natural frequency is designed. The effectiveness of the proposed system is shown through experiments using liquid container transfer.
