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Steady State Counterbalance Valve Modeling with the Influence of Synthetic Ester Oils Using CFD [PDF]
Modeling, Identification and Control, 2020 This study looks in details at the effects of synthetic esters being applied to a counterbalance valve from the perspective of a system engineer. There is limited literature on the subject of applied synthetic esters and as such limited unbiased sources ...
Jannik Hartwig Jakobsen +1 more
doaj +4 more sources
Energies, 2022 The effective use of robotic manipulators is particularly important when carrying out hazardous tasks. Often, for this type of mission, manipulators equipped with a hydraulic drive system are used, and their work results primarily from the implementation
Marian Janusz Łopatka +3 more
doaj +2 more sources
Towards digital twin development of counterbalance valves: Modelling and experimental investigation
Mechanical Systems and Signal Processing, 2023 Digital twins are becoming an integral part of mechanical systems in industries due to the several advantages that they can provide such as performance analysis, predictive maintenance, and real-time monitoring. However, to allow their usage by non-experts and integration with digital twins of other interacting systems, the model behind the digital ...
Rituraj, Rituraj, Scheidl, Rudolf
openaire +2 more sources
Numerical and Experimental Study of a Novel Concept for Hydraulically Controlled Negative Loads [PDF]
Modeling, Identification and Control, 2016 This paper presents a numerical and experimental investigation of a novel concept that eliminates oscillations in hydraulic systems containing a counterbalance valve in series with a pressure compensated flow supply.
Jesper Kirk Sørensen +2 more
doaj +1 more source
Machines, 2023 Pump-controlled motor hydrostatic system (PCMH) is widely applied for rotary driving in heavy industry and construction machinery due to its high-power density and efficient speed regulation performance.
Huashuai Wang +4 more
doaj +1 more source
Analysis of Offshore Knuckle Boom Crane - Part One: Modeling and Parameter Identification [PDF]
Modeling, Identification and Control, 2013 This paper presents an extensive model of a knuckle boom crane used for pipe handling on offshore drilling rigs. The mechanical system is modeled as a multi-body system and includes the structural flexibility and damping.
Morten K. Bak, Michael R. Hansen
doaj +1 more source
Graphic Method to Evaluate Power Requirements of a Hydraulic System Using Load-Holding Valves
Energies, 2022 It is very well known that the use of a load-holding valve (LHV) in a hydraulic system introduces additional energy consumption. This article presented a simplified graphical method for analyzing the power requirements of hydraulic systems equipped with ...
Luis Javier Berne +4 more
doaj +1 more source
The ST2/IL-33 Pathway in Adult and Paediatric Heart Disease and Transplantation
Biomedicines, 2023 ST2 is a member of interleukin 1 receptor family with soluble sST2 and transmembrane ST2L isoforms. The ligand of ST2 is IL-33, which determines the activation of numerous intracytoplasmic mediators following the binding with ST2L and IL-1RAcP, leading ...
Giacomina Brunetti +5 more
doaj +1 more source
Actuators, 2018 Valve-controlled hydraulic actuation systems are favored in many applications due to their fast response, high power-to-weight ratio, and stability under variable working conditions. Efficiency, however, is the main disadvantage of these systems.
Ahmed Imam +3 more
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Design, Implementation and Evaluation of a Pump-Controlled Circuit for Single Rod Actuators
Actuators, 2017 Pump-controlled hydraulic circuits are more efficient than valve-controlled circuits, as they eliminate the energy losses due to flow throttling in valves and require less cooling effort.
Ahmed Imam +3 more
doaj +1 more source