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A coupled hydraulic and mechanical system simulation for hydraulic excavators
Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2019The hydraulic system of an excavator consists of a central hydraulic power source and multiple actuator circuits. The numerical stiffness of the hydraulic system model, the complex hydraulic circuits of the excavator, and the coupling of the dynamics associated with the hydraulic system and mechanical manipulator have been major barriers to developing
Cheol-Gyu Park +4 more
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New Hydraulic System Modelling
Journal of Vibration and Control, 2004The efficient design of hydraulic systems requires fast simulation methods. In most simulation programs, the hydraulic components are coupled by compressible joints. Since the compressibility of oil is very small, this leads to stiff differential equations.
Pfeiffer, Friedrich +1 more
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Design of the hydraulic absorber for hydraulic catapult system
Proceedings of 2011 International Conference on Fluid Power and Mechatronics, 2011Hydraulic catapult is a high speed fluid power based launching system and the actuator is a 3-level telescopic cylinder. Limited by the traveling distance of the cylinder, There is no much room left for the cushion process, which leads to the impossible apply of the traditional hydraulic absorber.
Pengxiang Li, Xiaoming Li
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Design of hydraulic system of a small hydraulic carrier
2020Hydraulic carrier is an important equipment in logistics industry, which is easy to operate and convenient to use. It is an inevitable choice to adapt to high-speed production. The trolley designed in this paper is a kind of manual trolley suitable for carrying products or goods. It is composed of hydraulic cylinder, hydraulic pump and other parts.
DING, J., FAN, Yu., XU, Q.
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The hydraulic vortex - an autocatakinetic system
International Journal of General Systems, 2006Experiments were performed to provide a phenomenological explanation of how a hydraulic (water) vortex forms. Experimental observation and results gathered from this work also provided a possible explanation as to why such a vortex forms. The data and interpretations presented are intended to support the classification of the hydraulic vortex as a self-
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2020
Industrial hydraulic circuits are generally characterized by the presence of several curves, elbows, valves, junctions, manometers, flow meters, with dominance of concentrated losses on distributed losses. In most cases, pumps transfer power to the current, and one of the possible aim is transfer of power through the current.
Longo S., Tanda M. G., Chiapponi L.
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Industrial hydraulic circuits are generally characterized by the presence of several curves, elbows, valves, junctions, manometers, flow meters, with dominance of concentrated losses on distributed losses. In most cases, pumps transfer power to the current, and one of the possible aim is transfer of power through the current.
Longo S., Tanda M. G., Chiapponi L.
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Hydraulic Component for High Pressure Hydraulic Systems
SAE Technical Paper Series, 1986<div class="htmlview paragraph">Design considerations that 8000 psi and non-flammable fluids have upon aircraft hydraulic pumps and motors are presented. The influence of one non-flammable fluid, chlorotrifluoroethylene (CTFE) is discussed.</div> <div class="htmlview paragraph">The employment of variable displacement pressure ...
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