Modeling and Simulation of Servo-Hydraulic Cylinder Systems for Multi Axis Test Control

Li, Ling Jun; Thurner, Thomas

doi:10.4028/www.scientific.net/amr.711.416

Cited by 6 publications

(7 citation statements)

References 10 publications

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“…This technique was validated through predictive functional control (PFC) and the results were evaluated for position control EHA system with and without disturbances in both MATLAB simulation and real-time experiments. On the other hand, the dynamic characteristics of the system gain through system identification based on 3rd order ARX model Li et al [14] introduced a methodology by an integrating black and grey box model identification for deriving mathematical model of an electro-hydraulic servo system. A white box model of the entire system was build and the unknown parameters were calculated approximately as per prior experience.…”

Section: Literature Reviewmentioning

confidence: 99%

System Identification and Controller Design for Hydraulic Actuator

Nisar¹,

Munawar²

2021

Preprint

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System Identification of Hydraulic Actuators is critical for analyzing their performance and designing a suitable Control System. Hydraulic actuators are extensively used in many applications, ranging from flight simulators, robotics, orthopaedic surgery, material testing, construction and many other industrial types of machinery. In the aviation industry, hydraulic actuators are currently being used in full flight simulators used for controlling the position and orientation of the motion platform. Every actuator has its own characteristics, therefore, the choice of excitation signals for System Identification must take into account the dynamics of the actuator under consideration. This work proposes the selection of excitation signals based on bandwidth of the hydraulic actuator. Validation of the proposed selection is done by performing system identification, obtaining a mathematical model and comparing it with a nonlinear hydraulic actuator model designed in Simscape. After validation, a nonlinear PID control has been tuned on the identified model and tested on the nonlinear model. Extensive simulations have been run and results show accurate mathematical modelling, as well as precise control has been achieved through the proposed methodology. INDEX TERMS Black-box model, controller design, electro-hydraulic actuator (EHA), flight simulator, NPID, hydraulic actuator, system identification.

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Section: Literature Reviewmentioning

confidence: 99%

System Identification and Controller Design for Hydraulic Actuator

Nisar¹,

Munawar²

2021

Preprint

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“…The net pressure in this case is a function of the supplied pressure (P s ), return pressure (P R ) and leakage pressure. This can be represented by the nonlinear equation of flow considering the differential pressures at the inlet of the piston and annulus sides of the actuators as presented in equation (6) (Kalyoncu and Haydim, 2009;Shailaja et al, 2013;Li and Thurner, 2013).…”

Section: Directional Control Valvesmentioning

confidence: 99%

“…In essence, the linearised equation of flow at relaxed state ( 0 ) s s I P U P = = from the directional control valves to the ports of the actuators can be represented by (8) (Li and Thurner, 2013;Merritt, 1967;Alleyne and Liu, 2000;Liu and Daley, 2000).…”

Section: Directional Control Valvesmentioning

confidence: 99%

A Distributive Approach for Position Control of Clamps in a Reconfigurable Assembly Fixture

Olabanji

Mpofu

Battaïa

2020

IJAAC

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Hydraulic actuator is a type of clamp used in a reconfigurable assembly fixture for exact positioning and effective immobilisation of workpiece during the assembly process. However, due to their nonlinearity, there is a need to design a control system for their effective performance. This study presents a distributive approach to mathematical modelling and position control of multiple hydraulic actuators used as a clamping system in a reconfigurable assembly fixture. The electrohydraulic system is verified experimentally in order to observe the synchronisation of the hydraulic actuators. The mathematical model of the system is developed in the Simulink environment. A Simulink model of the system is developed from the mathematical model and simulated with a fuzzy-PID controller in order to obtain the response of all the actuators and other operating characteristics of the system. Simulation results are shown graphically in order to verify the theoretical development.

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“…Among these methods, using of hydraulic actuator to provide the necessary force for torque inducer system or an electric drive system with gearbox is more popular. [1,2,3,4] There are many different ways for controlling these kinds of hydraulic actuators. Hydraulic actuators are known for their high power and have an important role in modern machine equipment.…”

Section: Introductionmentioning

confidence: 99%

Fractional Order PID Control mechanism for Helicopter Gearbox Test Control with internal and External Disturbance

Takloo¹,

Mozafari²,

Rezazadehmohamadi³

et al. 2017

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Fractional order PID (FOPID) controller is a special kind of PID controller which it’s derivative and integral order are fractional rather than integer and has five parameters. Using this control improves the control results in accuracy and speed. Statistics show that using this controller for systems with high sensitivity is more practical and safe. Mechanical closed loop test rig acts an important role in aviation industry. Fault diagnosis in gearboxes and other critical components of the airplane and helicopters is the most important part of this industry. More over testing rotating equipment is very important for system security verification. There are several testing technics and many important testing parameters. One of these essential factors is gearbox security test technique. What’s more, mechanical closed-loop system is a very cost effective method. For financial, energy consumption and maintenance reasons, using a system with the ability of energy regeneration is suggested. In this paper mechanical close loop with energy regeneration mechanism is used for testing the helicopter gearbox. Two kinds of controllers are used for keeping the closed-loop’s torque in the constant value. The result of paper shows the behavior of PID and FOPID controller methods in controlling torque circulating in this mechanical closed loop. Beside the overshoot and settling time is considerable.

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Modeling and Simulation of Servo-Hydraulic Cylinder Systems for Multi Axis Test Control

Cited by 6 publications

References 10 publications

System Identification and Controller Design for Hydraulic Actuator

System Identification and Controller Design for Hydraulic Actuator

A Distributive Approach for Position Control of Clamps in a Reconfigurable Assembly Fixture

Fractional Order PID Control mechanism for Helicopter Gearbox Test Control with internal and External Disturbance

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