Modeling Transient Liquid Slosh Behavior at Variable Operating Speeds Induced by Intermittent Motions in Packaging Machines

Abstract

The present paper deals with the problem of modeling liquid slosh occurring in the packaging process of containers filled with liquid. Sloshing effects are induced by one-dimensional intermittent motions and are undesired due to the necessity of quality control processes, such as weighing. Therefore, motion optimizations are often applied with the intention to minimize the residual vibrations. Valid process models are required to do so. The aim of this paper is to derive models for describing the liquid slosh behavior for different motions and for common practical circumstances, e.g., different container geometries as well as machine operating speeds, and to state the model's limits of use. Known model approaches are discussed, and their assumptions are reviewed experimentally. This leads to a set of limited ranges of operating speeds in which the applied models' assumptions are valid. The models are derived for these sets from experimental data, and a comparison is executed that enables the determination of the models' validity concerning their operating speed dependency. Finally, the validity of the derived models is investigated by comparing their predictive efficiency of describing the vibration for different motion profiles.

Modeling and adaptive robust wavelet control for a liquid container system under slosh and uncertainty

“…The approximately linearized model of the slosh in the container system can be written in a simple form as 25 :…”

Data-Driven Fractional-Order PID Controller Tuning for Liquid Slosh Suppression Using Marine Predators Algorithm

“…Recently, the studies on the liquid slosh problem have become popular topics among researchers due to the urgency to suppress the liquid slosh in various applications. For example, in industrial fluid packaging, the residual vibration induced by the intermittent motion profile of the liquid can limit the machine's operating speed, thus, reducing productivity [1,2]. Meanwhile, an unsteady internal liquid movement in the large aerospace structures can modify the behaviour of the system by producing an extra excitation load at the internal wall [3].…”

Robust Tracking Control for Slosh-Container System Against Viscous Friction Uncertainty

“…Nowadays, the slosh-container system become very important and involved in a lot of industrial applications, [1,2] like steel industries, rocket launches systems, and liquid carriers. This system can be defined as the liquid movement inside a container or tank during the transfer of the container.…”