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Xiaodan Xu, Zhifeng Bai and Yuanyuan Shao
In order to solve the poor control accuracy problem of the traditional synchronous control algorithm for a double-cylinder forging hydraulic press, a synchronous control algorithm for double-cylinder forging hydraulic press based on a fuzzy neural networ...
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Jia-Bin Wu, Li Li, Xing-Long Zou, Pin-Jian Wang and Wei Wei
The valve-controlled hydraulic cylinder system (VCHCS) is commonly used for actuators such as manipulators in deep-sea equipment, whose working performance is crucial to subsea tasks. Affected by the ambient pressure introduced by the pressure compensato...
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Jia-Bin Wu, Li Li, Yong-Kang Yan, Pin-Jian Wang and Wei Wei
The valve-controlled hydraulic cylinder system (VCHCS) is commonly utilized in the underwater manipulator, which is the most important tool for subsea tasks. Hydraulic oil viscosity is very sensitive to pressure. Therefore, when working at different dept...
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Xiaolong Tang, Changjie Wu and Xiaoyan Xu
The steering mechanism of ship steering gear is generally driven by a hydraulic system. The precise control of the hydraulic cylinder in the steering mechanism can be achieved by the target rudder angle. However, hydraulic systems are often described as ...
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Yongqiang Tian, Shuo Liu, Jingchang Long, Wei Chen and Jianxing Leng
The deep-sea environment has the characteristics of high pressure and low temperature. In addition to the extremely high requirements on the structural reliability, the ultra-high ambient pressure also has a great impact on the working characteristics of...
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Csaba Hos, Balázs Kuti
Pág. 23 - 27
The stability properties of the feedback control of a hydraulic cylinder is analysed with an emphasis on the effect of the control delay due to the discrete sampling. A simple theoretical model is developed for low-load cases, i.e. if the forces acting o...
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O. L. Tiutkin
Pág. 169 - 173
The results of mathematical simulation for process of assembling the sectional casing during heading works are presented in the paper. The finite-element model of wayside is developed, in which it is possible to represent the influence of hydraulic cylin...
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Konrad Johan Jensen, Morten Kjeld Ebbesen and Michael Rygaard Hansen
This paper presents the design, simulation and experimental verification of adaptive feedforward motion control for a hydraulic differential cylinder. The proposed solution is implemented on a hydraulic loader crane. Based on common adaptation methods, a...
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A. F. Golovchuk,K. V. Prikhodko
Pág. 49 - 55
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Dawid Szurgacz
This paper presents the results of lab-simulated tests on longwall powered supports under dynamic loading conditions. The tests were carried out on a test site, where the tested prop was subjected to a dynamic load using a controlled mass falling under g...
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Xigui Wang, Jie Tang, Yongmei Wang and Chen Li
An improved control method of desired position/posture coordinated adjustment by real-time posture data and sliding position mode control algorithm is proposed. A mathematical model of the non-longitudinal adjustment hydraulic system is presented, the co...
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Jie Wang, Min Cheol Lee, Karam Dad Kallu, Saad Jamshed Abbasi and Seokyoung Ahn
This paper proposes a new designed trajectory tracking method for a hydraulic manipulator, which is the terminal sliding mode control with sliding perturbation observer (TSMCSPO). The dynamics of the hydraulic system are complex and uncertain, it also ge...
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Oleksii Havrylenko,Serhii Kulinich
Pág. 30 - 37
A hydraulic drive with two hydraulic cylinders was considered in which the rod movement speeds are synchronized by a divider of the working fluid flow. Based on the developed mathematical model, operation of synchronized hydraulic cylinders in transient ...
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Shengjie Fu, Haibin Chen, Haoling Ren, Tianliang Lin, Cheng Miao and Qihuai Chen
Heavy forklifts that are widely used in ports and stations have large gravitational potential energy at the lowering of the boom. As concerning the large rated power level, the engine is still the main power source for the heavy forklifts. With the incre...
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Xiaoni Yang, Juanjuan Ma, Yongye Li, Xihuan Sun, Xiaomeng Jia and Yonggang Li
Hydraulic transportation of the piped carriage is a new energy-saving and environmentally-friendly transportation mode. There are two main states in the conveying process, stationary and moving. In the process of hydraulic transportation of the piped car...
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Shouyuan Zhang, Xin Wang and Haitao Ma
With the widespread use of sector gates in tidal river locks, there is a growing interest in the operating force during the gate operation. This study investigates the characteristics of operating forces in a sector gate hydraulic cylinder system using p...
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Guisheng Zhao, Shaonan Chen, Yixiang Liu and Kai Guo
In real-world applications, hydraulic pressure control performance is influenced by model uncertainties, the control bandwidths of valves and pumps, and deviations from the linear working region. To overcome the aforementioned obstacles, a novel referenc...
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Mohd Afifi Jusoh, Zulkifli Mohd Yusop, Aliashim Albani, Muhamad Zalani Daud and Mohd Zamri Ibrahim
Hydraulic power take-off (HPTO) is considered to be one of the most effective power take-off schemes for wave energy conversion systems (WECs). The HPTO unit can be constructed using standard hydraulic components that are readily available from the hydra...
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Zhen Qin, Yu-Ting Wu, Aihua Huang, Sung-Ki Lyu and John W. Sutherland
A novel design of a vibration energy absorbing mechanism (VEAM) that is based on multi-physics (magnetic spring, hydraulic system, structural dynamics, etc.) for cable vibration is proposed. The minimum working force of the hydraulic cylinder has been ex...
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Chongbo Jing, Junjie Zhou, Shihua Yuan and Siyuan Zhao
This paper presents a theoretical model and its experimental validation for the pressure ratio of a swash plate-rotating hydraulic transformer. The structure and principle of the new type of transformer are described. The swash plate-rotating type can re...
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