Communications - Scientific Letters of the University of Zilina 2025, 27(1):B1-B11 | DOI: 10.26552/com.C.2025.001

Modelling, Simulation and Experimental Verification of a 3 DOF Moving Platform with Parallel Kinematics and Electro-Hydraulic Proportional / Servo Control System

Ezz Eldin Ibrahim ORCID...*, Ahmed Azouz ORCID..., Tarek Elnady ORCID..., Mohamed Saffaa Hassan ORCID..., Ibrahim Saleh
Military Technical College, Cairo, Egypt

Hydraulic motion platforms are widely utilized in various environments due to their capacity to bear heavy loads and provide long actuator strokes. The predominant control system employed for hydraulic motion platforms is the electro-hydraulic servo system (EHSS) due to its high accuracy and robustness. However, compared to other types of hydraulic valves, the electro-hydraulic servo valve (EHSV) is less durable. An alternative system to EHSS is the electro-hydraulic proportional system (EHPS), which employs an electro-hydraulic proportional valve (EHPV) instead of the EHSV. The EHPV resolves the durability issue at the expense of accuracy and system error. The optimization of durability and accuracy is the core of this study. The tracking behavior and response of both Three degrees of freedom (3 DOF) motion platforms using EHSS and EHPS are investigated across different frequency ranges.

Keywords: hydraulic valve, electro-proportional valve, servo valve, electro-hydraulic proportional system, electro-hydraulic servo system, position tracking control, motion platform
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The authors received no financial support for the research, authorship and/or publication of this article.

Conflicts of interest:

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: May 15, 2024; Accepted: September 11, 2024; Prepublished online: October 7, 2024; Published: January 2, 2025  Show citation

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Eldin Ibrahim, E., Azouz, A., Elnady, T., Hassan, M.S., & Saleh, I. (2025). Modelling, Simulation and Experimental Verification of a 3 DOF Moving Platform with Parallel Kinematics and Electro-Hydraulic Proportional / Servo Control System. Communications - Scientific Letters of the University of Zilina, 27(1), B1-11. doi: 10.26552/com.C.2025.001
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