Actuation of an electrohydraulic manipulator with a novel feedforward compensation scheme and PID feedback in servo-proportional valves

A Sarkar, K Maji, S Chaudhuri, R Saha… - Control Engineering …, 2023 - Elsevier
Achieving good tracking control beyond 0.1 Hz by electrohydraulic manipulators still
remains challenging due to the coupling of nonlinear actuation dynamics and multiple …

Adaptive neural-bias-sliding mode control of rugged electrohydraulic system motion by recurrent Hermite neural network

S Chaudhuri, R Saha, A Chatterjee… - Control Engineering …, 2020 - Elsevier
This paper deals with design and implementation of a real-time position control scheme
based on the synergistic combination of a recurrent neural network, an integral sliding mode …

Modeling and development of a liquid piston hydrogen compressor with a double buffer structure: A new insight

X Kang, X Gao, Z Liu, L Cai, Y Li - International Journal of Hydrogen Energy, 2023 - Elsevier
Liquid piston hydrogen compressors (LPHCs) are promising used in hydrogen refueling
stations. Piston braking is crucial to LPHCs since the solid piston works under a high stroke …

Static and dynamic characterization and control of a high-performance electro-hydraulic actuator

GN Sahu, S Singh, A Singh, M Law - Actuators, 2020 - mdpi.com
This paper characterizes the static, dynamic, and controlled behavior of a high-performance
electro-hydraulic actuator to assess its suitability for use in evaluating machine tool …

On the hysteresis characteristics and compensation control strategy of a pneumatic hydrodynamic retarder

W Wei, T Tao, H Jian, M Guo, N Hu, Q Yan - Physics of Fluids, 2024 - pubs.aip.org
As the core component of the hydrodynamic retarder braking system, pneumatic
proportional solenoid valve plays an important role in the process of braking torque control …

Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation

R Castilla, I Alemany, A Algar, PJ Gamez-Montero… - Energies, 2017 - mdpi.com
Cushioning is an important aspect in hydraulic cylinder performance. The piston has to be
decelerated before it strikes the end cap in order to avoid stresses in the cylinder …

Experimental study of 3D movement in cushioning of hydraulic cylinder

A Algar, E Codina, J Freire - Energies, 2017 - mdpi.com
A double acting cylinder operation has been fully monitored in its key functional parameters,
focused on characterization of end-of-stroke cushioning and starting phases. Being the …

Accurate model identification of the inertial mass dynamic of hydraulic cylinder with model uncertainty

L Jin, Q Wang - Proceedings of the Institution of Mechanical …, 2019 - journals.sagepub.com
In this study, a novel double-layered network scheme is proposed for accurate and efficient
identification of hydraulic cylinder. The model of real hydraulic cylinder is usually partly …

Amortiguación de final de carrera de actuadores hidráulicos

A Algar Espejo - 2021 - upcommons.upc.edu
Los sistemas internos de amortiguación de actuadores lineales hidráulicos, de especial
interés en maquinaria móvil, buscan evitar choques mecánicos en sus finales de carrera. El …