Results 1 to 10 of about 473,345 (294)

Design of an aircraft generator with radial force control. [PDF]

open access: yesOpen Res Eur, 2022
With the increasing electrical energy demands in aviation propulsion systems, the increase in the onboard generators’ power density is inevitable. During the flight, forces coming from the gearbox or gyroscopic forces generated by flight manoeuvres like take-off and landing can act on the generators' bearings, which can lead to wear and fatigue in the ...
Brecher C   +9 more
europepmc   +7 more sources

Analysis of the Radial Force of a Piezoelectric Actuator with Interdigitated Spiral Electrodes [PDF]

open access: yesMicromachines
The actuator is a critical component of the micromanipulator. By utilizing the properties of expansion and contraction, the piezoelectric actuator enables the manipulator to handle and grasp miniature objects during micromanipulation.
Yateng Wang   +4 more
doaj   +2 more sources

Low radial and axial force stent retriever reduces symptomatic subarachnoid hemorrhage after mechanical thrombectomy for acute middle cerebral artery and medium vessel occlusion: a prospective pilot study [PDF]

open access: yesFrontiers in Neurology
BackgroundSubarachnoid hemorrhage (SAH) is a well-recognized complication after mechanical thrombectomy (MT) and may adversely affect clinical outcomes. SAH commonly results from vessel injury due to overextension or displacement during device retrieval.
Taichi Ishiguro   +13 more
doaj   +2 more sources

Effect of Volute Geometry on Radial Force Characteristics of Centrifugal Pump during Startup [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
To research the effect of the volute geometry on the radial force characteristics of the centrifugal pump during the starting process, choosing a centrifugal pump with a head of 87m as the research object.
R. Zhou, J. Yang, H. L. Liu, L. Dong
doaj   +1 more source

Numerical and Experimental Investigation on Unsteady Flow and Hydraulic Radial Force of Low-Head Axial Flow Turbine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Radial force in low-head axial flow turbines (AFTs) is an influential factor in their operational stability. To explore the transient operating behavior of the radial force in low-head AFTs under different blade numbers, transient numeric computations ...
Y. Sunsheng   +5 more
doaj   +1 more source

Analytical Calculation of Temporal and Circumferential Orders of Radial Force Density Harmonics in External-Rotor and Internal-Rotor Switched Reluctance Machines

open access: yesIEEE Open Journal of Industry Applications, 2021
This paper presents an analytical method to calculate the temporal and circumferential orders of the radial force density harmonics in switched reluctance machines (SRMs) without running the electromagnetic finite element analysis (FEA).
Jianbin Liang   +6 more
doaj   +1 more source

Vibration Enhancement or Weakening Effect Caused by Permanent Magnet Synchronous Motor Radial and Tangential Force Formed by Tooth Harmonics

open access: yesEnergies, 2022
This paper investigates the vibration enhancement or weakening effect caused by permanent magnet synchronous motor radial and tangential force formed by tooth harmonics.
Mingchuan Liu   +4 more
doaj   +1 more source

Influence of Blade Wrap Angle on the Hydrodynamic Radial Force of Single Blade Centrifugal Pump

open access: yesApplied Sciences, 2021
To investigate the effect of blade wrap angle on the hydrodynamic radial force of a single blade centrifugal pump, numerical simulation is conducted on the pumps with different blade wrap angles.
Linwei Tan   +4 more
doaj   +1 more source

Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

open access: yesIET Electric Power Applications, 2023
A new inhibition method was proposed for the problem of harmonic of radial electromagnetic force during the operation of the composite magnetic coupler.
Shuang Wang   +5 more
doaj   +1 more source

Radially anisotropic systems with r−α forces – II: radial-orbit instability [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
We continue to investigate the dynamics of collisionless systems of particles interacting via additive $r^{- }$ interparticle forces. Here we focus on the dependence of the radial-orbit instability on the force exponent $ $. By means of direct $N$-body simulations we study the stability of equilibrium radially anisotropic Osipkov-Merritt spherical ...
Di Cintio, Pierfrancesco   +2 more
openaire   +3 more sources

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