Results 161 to 170 of about 17,651 (213)

Influence of temperature and pressure on preparing Ga nanowire arrays by press-based nanoinfiltration. [PDF]

Nanoscale Adv
Mendonça AA, Tomiatti L, Pirota KR, Béron F.   +3 more
europepmc   +1 more source

Energy efficiency optimization of electric hydraulic loader with variable speed variable displacement power source. [PDF]

Sci Rep
Yang M, Yan G, Ai C, Liu X.
europepmc   +1 more source

A double closed loop digital hydraulic cylinder position system based on switching active disturbance rejection control. [PDF]

Sci Rep
Jiang S, Zhao G, Huang F, Liu W, Chen Y, Zhang L.   +5 more
europepmc   +1 more source

Heitt Mjölnir: a heated miniature triaxial apparatus for 4D synchrotron microtomography. [PDF]

J Synchrotron Radiat
Freitas D, Butler IB, Elphick SC, Gilgannon J, Rizzo RE, Plümper O, Wheeler J, Schlepütz CM, Marone F, Fusseis F.   +9 more
europepmc   +1 more source

Wirelessly-powered, Electronics-free Ultrasonic Tags for Continuous Wearable Health Monitoring in Epidermal and Ocular Applications

Beker L, Toymus A, Peker S, Atik A, Yener U, Albay M, Yılgör E, Yılgör İ.   +7 more
europepmc   +1 more source

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Slipper Balance in Axial Piston Pumps and Motors

Journal of Tribology, 1992
The paper presents the results of an experimental and theoretical investigation of the effect of clamping ratio and orifice size on the performance of slippers in axial piston pumps and motors. Polishing of the running face to a slightly convex form appears to be essential for successful operation under all conditions. It is shown that slippers operate
Koc E., Hooke C.J., Li K.Y.
openaire   +1 more source

Experimental Simulation of Piston Leakage in an Axial Piston Pump

Fluid Power Systems and Technology, 2005
A method used to introduce “artificial leakage” into an axial piston pump to simulate leakage from a worn piston is described in this paper. A pressure control servo valve with a very high frequency response was employed to divert flow from the pump outlet in a prescribed waveform directly to tank.
Zeliang Li, Richard Burton, Peter Nikiforuk   +2 more
openaire   +1 more source

The Cavitation Issue in Asymmetrical Axial-Piston Pumps

Journal of Dynamic Systems, Measurement, and Control, 2022
Abstract Pump-controlled single-rod hydraulic actuators have long been the subject of intensive research toward building valve-less, more efficient systems. The main challenge is to deal with the uneven flows into and out of the differential cylinders.
Gustavo Koury Costa, Nariman Sepehri
openaire   +1 more source

The kinematic analysis of axial-piston pumps

Mechanism and Machine Theory, 1983
Abstract This investigation describes the kinematics of axial hydraulic pumps with spherical ended pistons. The results, however, apply to the basic kinematics of all axial piston pumps. The current hypothesis is that sliding at the piston/swash plate interface contributes to the wear of these parts.
Wayne D. Milestone, Alan Solomon, Gerry Olsen   +2 more
openaire   +1 more source

Reduction of axial piston pump pressure ripple

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2000
The reduction in source flow ripple in hydraulic systems is the most effective method of reducing pump-generated pressure ripple and system noise. This paper describes reductions in axial-piston pump delivery flow ripple achieved using a novel timing mechanism which is inherently speed, flow and pressure sensing. Fixed-speed tests have shown that the
K A Harrison, K A Edge
openaire   +1 more source