Motion synchronization for the SHA/EMA hybrid actuation system by using an optimization algorithm

Rehman, Waheed Ur; Wang, Xinhua; Cheng, Yiqi; Chai, Hui; Hameed, Zeeshan; Wang, Xingjian; Saleem, Farrukh; Lodhi, Ehtisham

doi:10.1080/00051144.2021.1989891

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…The control compensation method adds a force balance control link to the steering surface action control system. Rehman et al [4] proposed trajectory-based fractional-order proportional integral derivative (FOPID) control for a hybrid drive system consisting of a servo-hydraulic actuator and an electro-mechanical actuator (SHA/EMA). Rehman et al [5] presented an approach to reduce the force fight of redundant actuation systems for hydraulic actuators (HA) and electro hydrostatic actuators (EHA).…”

Section: Introductionmentioning

confidence: 99%

Equalization control of rudder force fight under hydraulic servo-actuation system

Qu,

Li,

et al. 2023

J. Phys.: Conf. Ser.

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The main steering rudder surface of civil aircraft usually adopts the design of redundant degree actuator channels to meet the requirements of high safety of flight control systems. However, the use of the main-main actuator operating leads to a force fight phenomenon, which can bring fatigue and other effects on the rudder surface structure and even threaten flight safety. In this paper, the rudder operating system with three residual degrees of main-main-main operation is taken as the object. A proportional-integral equalization algorithm based on the dual compensation of actuator pressure difference and position is investigated to mitigate the force fight phenomenon. The effectiveness of this force fight equalization method is verified by Simulink simulation and the iron bird experiment.

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Section: Introductionmentioning

confidence: 99%

Equalization control of rudder force fight under hydraulic servo-actuation system

Qu,

Li,

et al. 2023

J. Phys.: Conf. Ser.

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“…In 2020, XUE from Shanghai Jiao Tong University [17] proposed a set of force equalization algorithms based on the pressure difference and position compensation feedback and validated the control method on the Iron Bird platform. WU Rehman [18] from the University of Science and Technology Beijing 2021 designed a fractional-order PID feedback controller based on a linear simulation model of a non-similar residual system, but only verified force fight in the case of external load perturbation. SUN [19] proposed a force equalization method based on the combined action of speed and acceleration feedforward compensation control and PID feedback control in 2022, but the method is designed based on friction and motor linear parameters, the selection of controller parameters is subjective.…”

Section: Introductionmentioning

confidence: 99%

Force Equalization Control of Redundant Electromechanical Actuation System by FOPID and Current Feedforward

Yang,

Hou,

Sun

et al. 2023

IEEE Access

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To solve force-fight problem of the fly-by-wire redundant electromechanical actuation system(EMAs) in an active-active mode, a force equalization control method with feedforward and feedback control is proposed. Aiming at the un-ideal stability and robust performance of force equalization controller, an optimized Fractional Order PID controller with current feedforward (FO+IF)is adopted. Aiming at the limitation of traditional parameter tuning, the controller parameters are optimized iteratively using the particle swarm optimization (PSO) algorithm. To improve the anti-interference performance of the system, a state observer for load torque is introduced into the current feedforward control. Through setting a serious force fight situation with multiple disturbances, the performance of FOPID and FO+IF on force fight and position response were compared, and the robustness of the system under the influence of sensitive parameters was analyzed by Monte Carlo method. The experimental results show that FO+IF can effectively improve the impact of static force fight and dynamic force fight on the system.

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Modeling and Dynamic Performance Analysis of Hydraulic Top Drive Main Transmission System with Long Hydraulic Pipelines

Shi

Zhang

2022

Geofluids

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Hydraulic top drive is the main power component used to drive drilling tools rotating to drill a hole for drilling rigs. Its main transmission system was built with hydraulic power source and hydraulic actuators. During the drilling procession, the hydraulic top drive is mounted on a derrick, and moving along its vertical guide rails. The hydraulic power station is usually placed on the drilling platform or the ground. In that way, long pipelines are needed to connect the hydraulic pumps and hydraulic motors. Thus, the effects on the performance of hydraulic top drive should not be neglected. A mathematical model of hydraulic top drive main transmission with differential equation of hydraulic units and state space equation of hydraulic long pipelines was deduced in this research. A simulation model was built using the AMESim software. And field drilling test of the hydraulic top drive was carried out in Songliao Basin Drilling Project (SK-II) well site. To verify and modify the virtual model, a comparison analysis was performed by setting the parameters and load of the three methods at the same values. The result of comparison shows that the simulation results are very close to the theoretical results and field drilling test data. Thus, the dynamic characteristics could be analyzed by this simulation model. Dynamic characteristics of the hydraulic top drive with different length and various diameters of pipelines were studied. The simulation results demonstrate that pipeline lengths and pipeline diameters affect the system in different laws, and it needs to comprehensively consider the system response speed, overshoot, and steady-state characteristics when choosing the size of pipelines for hydraulic top drive.

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Motion synchronization for the SHA/EMA hybrid actuation system by using an optimization algorithm

Cited by 4 publications

References 29 publications

Equalization control of rudder force fight under hydraulic servo-actuation system

Equalization control of rudder force fight under hydraulic servo-actuation system

Force Equalization Control of Redundant Electromechanical Actuation System by FOPID and Current Feedforward

Modeling and Dynamic Performance Analysis of Hydraulic Top Drive Main Transmission System with Long Hydraulic Pipelines

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