Effect of Liquid Height on Sloshing Dynamics in Cylindrical Containers Using H-Infinity Control with Smooth Velocity Input

Udomsak Jantontapo; Panya Minyong; Songtham Deewanichsakul; Phichitphon Chotikunnan; Rawiphon Chotikunnan; Nuntachai Thongpance

doi:10.18196/jrc.v6i3.26361

Authors

Udomsak Jantontapo Rajamangala University of Technology Thanyaburi
Panya Minyong Rajamangala University of Technology Thanyaburi
Songtham Deewanichsakul Rajamangala University of Technology Thanyaburi
Phichitphon Chotikunnan Rangsit University https://orcid.org/0000-0002-6617-6805
Rawiphon Chotikunnan Rangsit University
Nuntachai Thongpance Rangsit University

DOI:

https://doi.org/10.18196/jrc.v6i3.26361

Keywords:

Liquid Height Effects, Cylindrical Container Sloshing, H-Infinity Control, Smooth Velocity Profiles, Fluid Transport Stability

Abstract

The research analyzes the dynamics of liquid sloshing in cylindrical containers, emphasizing the influence of liquid height on system stability and motion via H-Infinity Control methodologies. The main goal is to analyze how changes in liquid height affect the dynamics and stability of fluid transport systems and to assess the effectiveness of H-Infinity control in reducing sloshing effects. A simulation investigation was performed at different liquid levels using trapezoidal velocity profiles, including step inputs and gradual transitions. Performance was assessed using the Integral of Absolute Error (IAE) and Root Mean Square Error (RMSE). The results demonstrate that heightened liquid levels significantly improve sloshing dynamics, extend the settling time, and exacerbate inaccuracies in measurements due to increased fluid inertia. Smooth velocity profiles reduce sudden changes; yet, they cannot completely eliminate the destabilizing effects caused by large amounts of liquid. The study confirms a mechanical model for sloshing dynamics integrated with robust H-infinity control, providing significant insights for improving fluid management in robotics and automated systems. Subsequent research should encompass varied container designs, fluid characteristics, and sophisticated adaptive control methodologies.

Author Biography

Phichitphon Chotikunnan, Rangsit University

Assoc. Prof. Acting Sub LT. Phichitphon Chotikunnan is a Lecturer of the Biomedical Engineering Program at the College of Biomedical Engineering, Rangsit University. He has expertise in robotics, embedded systems, fuzzy logic control, and iterative learning control. He holds a Doctor of Engineering degree in Electrical and Information Engineering and a Master of Engineering in Electrical Engineering, both from King Mongkut's University of Technology Thonburi. He also has a Bachelor of Engineering in Mechatronics Engineering from Pathumwan Institute of Technology.

He has published in international journals and conferences, and he has been involved in various research projects. His work experiences include positions as a Teaching Assistant, Control and Instrumentation Engineer, R&D Embedded Applications, Lecturer, and R&D Consultant. He has also participated in numerous training programs and workshops, and he has received several awards for his research excellence.

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