Results 271 to 280 of about 465,669 (314)
Experimental investigation of the influence of friction, surface roughness and material hardness on the external load factor in threaded joints. [PDF]
PLoS OneTran VT, Nguyen HL.
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Multimodal Haptic Device Enabling Naturalistic Surface Rendering During Active Touch
Vardar Y, Jeong H, Anh K.
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Control Concept for a Hydraulic Mobile Machine Using a Haptic Operating Device
2009 Second International Conferences on Advances in Computer-Human Interactions, 2009A control methodology for the operation of a hydraulic excavator using a haptic operating device is developed. The main idea is to use position controllers for both the excavator and the operating device where both control loops output the reference position to the other, i.e., two position controlled systems are placed in a feedback loop with each ...
Henning Hayn, Dieter Schwarzmann
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Tribologie und Schmierungstechnik, 2022
In this work, a novel oil aging test-rig based on a real hydraulic system is introduced. This device allows an accelerated fluid-aging rate under high hydraulic loads. Furthermore, it is possible to vary the operating parameters to evaluate the different
Tobias Schick +4 more
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In this work, a novel oil aging test-rig based on a real hydraulic system is introduced. This device allows an accelerated fluid-aging rate under high hydraulic loads. Furthermore, it is possible to vary the operating parameters to evaluate the different
Tobias Schick +4 more
semanticscholar +1 more source
HYDRAULIC JUSTIFICATION FOR THE OPERATION OF THE DEVICE FOR ALLUVIATION OFNARROW-PROFILEDAMS
Prirodoobustrojstvo, 2021The construction of protective dams is the most effective means of combating flooding. There are various ways to build protective dams. The alluvial method of constructing protective dams can significantly reduce the cost of their construction. The article describes a method and device for alluvial narrow-profile dams that allows the use of bottom ...
I. M. ZHOGHOGIN +3 more
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Selection of Operating Modes of a Multi-Functional Hydraulic Device
Fluid Power Systems and Technology, 2005The field of earth moving equipment is experiencing a transformation due to the introduction of more electronic control capability and advanced control concepts. Conventional hydraulic control systems are controlled by proportional directional spool valve.
Amir Shenouda, Wayne J. Book
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Operation of hydraulic prop and safety devices in dynamic loading regime
Journal of Mining Science, 1999The results of stand tests of mass-produced hydraulic prop of ground support in dynamic loading regimes are presented. Pressure propagation in the fluid filling the piston cavity is shown to be of wave type; the reasons of failure of the cylinder walls are elucidated. A device for protecting the hydraulic prop from dynamic loads is proposed.
Yu. M. Lekontsev, T. M. Tarasik
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Design and development of a piezoelectric-hydraulic hybrid actuator with quarter-wavelength tubes
Smart materials and structures (Print), 2023The piezoelectric hydraulic actuator is a hybrid device consisting of a hydraulic pump driven by a piezoelectric stack connected to a hydraulic cylinder.
Jun Jian Zhang +3 more
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Forestry Engineering Journal
Hydraulic manipulators can be used to solve technical tasks on flatlands that have a slope or are arranged on structurally unstable soils. In these conditions, reliable and safe operation of hydraulic manipulators can be ensured by the use of outriggers.
Olga Dornyak +3 more
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Hydraulic manipulators can be used to solve technical tasks on flatlands that have a slope or are arranged on structurally unstable soils. In these conditions, reliable and safe operation of hydraulic manipulators can be ensured by the use of outriggers.
Olga Dornyak +3 more
semanticscholar +1 more source
Thermal Engineering, 2021
The results of studying hydraulic and thermochemical operating conditions of thermal power plant drum boiler’s internals are presented. Data on the boiler water’s salt content are given for the salt compartment comprising two pairs of external cyclones per boiler side, which are connected to one waterwall.
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The results of studying hydraulic and thermochemical operating conditions of thermal power plant drum boiler’s internals are presented. Data on the boiler water’s salt content are given for the salt compartment comprising two pairs of external cyclones per boiler side, which are connected to one waterwall.
openaire +1 more source