Abstract
The paper describes the synthesis of a mathematical model of the electro-hydraulic servo-drive. Because of the complexity of the electro-hydraulic servo-drive system and the difficulty in determining all system’s coefficients, the simplification of the mathematical model is proposed. The model includes different non-linearities such as the friction or the pressure-dependent oil bulk module. The simulation results are presented, and the comparison with the data collected from the real servo drive is discussed. With the proposed method it was possible to choose the values of physical parameters such that the real electro-hydraulic servo-drive is modeled with the accuracy suitable for the fast prototyping and design of the advanced control system.
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Notes
- 1.
The oil bulk modulus (Fig. 3b) depends nonlinearly on the oil pressure and the oil aeration level.
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Możaryn, J., Winnicki, A., Suski, D. (2022). Modeling of Electro-Hydraulic Servo-Drive for Advanced Control System Design. In: Awrejcewicz, J. (eds) Perspectives in Dynamical Systems I: Mechatronics and Life Sciences. DSTA 2019. Springer Proceedings in Mathematics & Statistics, vol 362. Springer, Cham. https://doi.org/10.1007/978-3-030-77306-9_16
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