Results 31 to 40 of about 4,776,728 (268)
Under pressure: Control of strain, phonons and bandgap opening in rippled graphene [PDF]
Carbon, 2015 Two-dimensional (2D) layers like graphene are subject to long-wavelength fluctuations that manifest themselves as strong height fluctuations (ripples). In order to control the ripples, their relationship with external strain needs to be established.
Monteverde, U +7 more
openaire +2 more sources
, 2020 The displacement of the variable displacement pumps can be adjusted by changing the swivel angle of the swash plate. In fact, the swivel angle oscillates because of the oscillating torque on the swash plate, which caused by the pressure fluctuation of ...
Xiaochen Huang, Bing Xu, Jun-hui Zhang
semanticscholar +1 more source
Effect of damping groove on flow dynamics and vibration characteristics of axial piston pump
AIP Advances, 2019 This paper presents pressure, flow and vibration characteristics of an axial piston pump valve plate with damping grooves. For flow ripple and vibration of the pump reduction, an improved compressible fluid model of axial-piston pump with damping groove ...
Tang Hesheng +3 more
doaj +1 more source
Process for optimization based on inductive approach in design of a hydraulic transmission
Nihon Kikai Gakkai ronbunshu, 2020 This study has proposed the optimization process regarding the hydraulic transmission installed with construction and agricultural vehicles, in order to contribute to the quietness of the vehicles in which noise from the hydraulic system is expected to ...
Shuichi NAKAGAWA +3 more
doaj +1 more source
Experimental Measurement and Numerical Validation of the Flow Ripple in Internal Gear Pumps
Energies, 2022 The flow ripple in an internal gear pump was measured by means of a new instantaneous high-pressure flowmeter. The flowmeter consists of two pressure sensors mounted on a piece of the straight steel pump delivery line, and a variable-diameter orifice was
Alessandro Ferrari +4 more
doaj +1 more source
Ripple Marks due to High Pressure [PDF]
Nature, 1919 WHILE in London and examining the German guns in the Mall, I came across one with a burst shell in its breech, which is probably a unique curiosity, and possibly of value to geologists and others who are interested in the flow of solids. The shell seems to have burst while being loaded into the gun, and, although it is well opened out, only a small ...
openaire +1 more source
Research on source impedance characteristics of an axial piston pump
Nihon Kikai Gakkai ronbunshu, 2019 The fluid borne-vibration generated from a hydraulic pump is known to be one of drawbacks in hydraulic systems. In order to decrease the noise and vibration effectively, the simulation tool to predict the pressure ripple at an arbitrary point in the ...
Takayoshi ICHIYANAGI, Takao NISHIUMI
doaj +1 more source
Selective Laser Melting under Variable Ambient Pressure: A Mesoscopic Model and Transport Phenomena
Engineering, 2021 Recent reports on the selective laser melting (SLM) process under a vacuum or low ambient pressure have shown fewer defects and better surface quality of the as-printed products.
Renzhi Hu +12 more
doaj +1 more source
Journal of Applied Fluid Mechanics, 2021 An axial piston pump can produce a serious cavitation phenomenon in the high- and low-pressure transition process. Cavitation bubbles expand, compress, rebound and collapse when they enter the high-pressure oil drainage area.
Y. Pan, A. H. Chen, Z. N. Wang
doaj
A Study of speed of sound in hydraulic oil in an operating hydraulic system
Nihon Kikai Gakkai ronbunshu, 2017 Generally, industrial vehicles such as agricultural machines and construction machinery use hydraulic systems for heavy-load work. Also the work often continues for a long time in a certain area.
Shuichi NAKAGAWA +2 more
doaj +1 more source