Compound angle-synchronizing control strategy for dual electro-hydraulic motors in hydraulic flight motion simulator

Dong, Wenhao; Han, Songshan; Zhang, Jiao; Wu, Shuai; Zhao, Yong

doi:10.1109/cgncc.2014.7007517

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…Hydraulic systems are widely used in aerospace [1,2], robotics [3,4], engineering machinery [5,6], and other fields [7][8][9]. With the rapid development of science and technology, all fields have set a higher request for the power-to-weight ratio.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Natural Heat Dissipation Capacity of Hydraulic Tank and Relevant Influencing Factors

Zhai

Wang

et al. 2022

Machines

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This paper aims to study the natural heat dissipation capacity of a hydraulic tank during its miniaturization revolution. A theoretical model of heat dissipation was built up on the basis of experimental analysis. Then, the natural heat dissipation power was deduced and shown to be relevant. Influencing factors were analyzed, which were the oil height proportion, design proportion, volume, material type, and wall thickness. The results showed that the heat dissipation power is proportional to the height of the oil in the tank. The power increases with the height proportional coefficient k2, while it first decreases and then increases with the length proportional coefficient k1. The lengthwise coefficient obviously has a more significant effect. The influence degree of reduction methods on natural heat dissipation is in the following order: length reduction > equal proportion reduction > height reduction > width reduction. Additionally, when the thermal conductivity λ is greater than 10 W/(m·K), the material and wall thickness of the tank slightly influence the heat dissipation capacity; otherwise, the influence is evident.

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Section: Introductionmentioning

confidence: 99%

Analysis of Natural Heat Dissipation Capacity of Hydraulic Tank and Relevant Influencing Factors

Zhai

Wang

et al. 2022

Machines

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“…Due to advantages such as high load efficiency, small size-to-power ratio, and fast response, hydraulic actuators have been widely investigated in construction [1,2], aerospace [3], motion simulator [4], as well as robotic area [5][6][7]. Boston Dynamics' hydraulic robots such as BigDog [5], Atlas [6], and SARCOS's robot exoskeletons [7] are some examples of advanced hydraulic robot system.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Backstepping Sliding Mode Control Based RBFNN for a Hydraulic Manipulator Including Actuator Dynamics

2019

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In this paper, an adaptive robust control is investigated in order to deal with the unmatched and matched uncertainties in the manipulator dynamics and the actuator dynamics, respectively. Because these uncertainties usually include smooth and unsmooth functions, two adaptive mechanisms were investigated. First, an adaptive mechanism based on radial basis function neural network (RBFNN) was used to estimate the smooth functions. Based on the Taylor series expansion, adaptive laws derive for not only the weighting vector of the RBFNN, but also for the means and standard derivatives of the RBFs. The second one was the adaptive robust laws, which is designed to estimate the boundary of the unsmooth function. The robust gains will increase when the sliding variable leave the predefined region. Conversely, they will significantly decrease when the variable approaches the region. So, when these adaptive mechanisms are derived with the backstepping technique and sliding mode control, the proposed controller will compensate the uncertainties to improve the accuracy. In order to prove stability and robustness of the controlled system, the Lyapunov approach, based on backstepping technique, was used. Some simulation and experimental results of the proposed methodology in the electrohydraulic manipulator were presented and compared to other control to show the effectiveness of the proposed control.

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Feedback linearization control method for hydraulic flight simulation turntable based on variable inertia model compensation

Liu,

Chen

et al. 2024

Nonlinear Dyn

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Compound angle-synchronizing control strategy for dual electro-hydraulic motors in hydraulic flight motion simulator

Cited by 4 publications

References 4 publications

Analysis of Natural Heat Dissipation Capacity of Hydraulic Tank and Relevant Influencing Factors

Analysis of Natural Heat Dissipation Capacity of Hydraulic Tank and Relevant Influencing Factors

Adaptive Backstepping Sliding Mode Control Based RBFNN for a Hydraulic Manipulator Including Actuator Dynamics

Feedback linearization control method for hydraulic flight simulation turntable based on variable inertia model compensation

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