Results 1 to 10 of about 8,053 (230)

An Equivalent Magnetic-Circuit-Modeling Approach for Analysis of Conical Permanent Magnet Synchronous Motor [PDF]

open access: yesSensors
Shaftless propulsion technology delivers high efficiency and low noise for subsea installations and marine vessels. To enhance thrust performance, the streamlined aft-body contour imposes stringent demands on geometric compatibility between the rim ...
Fengrui Cui   +4 more
doaj   +6 more sources

Mathematical model of a novel 12/14 conical bearingless switched reluctance motor

open access: yesEnergy Reports, 2022
Aiming at the defect that the traditional bearingless switched reluctance motor cannot control the axial suspension force, so that the rotor cannot achieve five-degree-of-freedom suspension by itself, this study presents an innovative 12/14 conical ...
Zhenyao Xu   +4 more
doaj   +4 more sources

Fractional Order Active Disturbance Rejection Control for Canned Motor Conical Active Magnetic Bearing-Supported Pumps

open access: yesInventions, 2023
Active magnetic bearings (AMBs) are electromagnetic mechanism systems in which non-contact bearings support a rotating shaft using attractive forces generated by electromagnets through closed-loop control. For complete support of a five degree of freedom
Danh Huy Nguyen   +7 more
doaj   +4 more sources

Research on the Axial Force of Conical-Rotor Permanent Magnet Synchronous Motors with Turbines [PDF]

open access: yesEnergies, 2018
The general method to suppress the axial force of the permanent magnet synchronous motor (PMSM) direct-drive turbine is to increase the number of balance devices, such as balance disks and special bearings, to counteract its influence, but this also ...
Jiabao Wang   +3 more
doaj   +5 more sources

Magnetic field and operating performance analysis of conical-rotor permanent magnet synchronous motor

open access: yesCES Transactions on Electrical Machines and Systems, 2018
In order to accurately analyze the magnetic field of conical-rotor permanent magnet synchronous motor (CR-PMSM), the effectiveness of two methods was studied on handling of problems concerned with non-uniform distribution of magnetic field along axial ...
Jiabao Wang   +3 more
doaj   +3 more sources

Analytical model of no‐load axial force for electric propulsion conical motor in electric aircraft

open access: yesIET Electric Power Applications, 2023
In the field of electric aircraft, the axial force of the conical motor is used to offset propeller thrust and reduce bearing wear. For the problem of accurate calculation of the no‐load axial force of the conical motor, combined with the characteristics
Yukun Fan   +5 more
doaj   +2 more sources

Design And Development of Teakwood Bud Pruning Machine Using Sustainable Engineering Approach [PDF]

open access: yesE3S Web of Conferences, 2023
The primary goal of this paper is to develop a robot capable of efficiently climbing teak wood trees and performing bud pruning tasks, thereby addressing the challenges posed by labor scarcity in farming.
Shankar S.   +7 more
doaj   +1 more source

Design of Underwater Grinding Device for Nuclear Power Plant [PDF]

open access: yesE3S Web of Conferences, 2022
In order to solve the problems of difficulty in cleaning the inner wall of the hammer-shaped component in the RIC system of the nuclear power plant and the low surface accuracy after cleaning, a profiling cleaning system was designed.
Tian Guangzheng   +4 more
doaj   +1 more source

Throat length effect on the flow patterns in off-design conical nozzles [PDF]

open access: yesFME Transactions, 2022
In the present work, a flow field study was performed for off-design conical nozzles with non-circular cylindrical throat sections such as those found in experimental sounding rocket motor applications. The flow field was simulated with the RANS model in
Tolentilo San Luis, Mirez Jorge
doaj   +1 more source

Oscillating wire arc additive manufacture of rocket motor bimetallic conical shell [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Abstract This paper studies the temperature field, dynamic strain and forming accuracy of the Oscillate-WAAM conical shell in the forming process and manufactures the WAAM conical shell part. The results show that compared with the offset filling WAAM, the oscillate-WAAM conical shell shows the following characteristics:the temperature ...
Tianying He   +3 more
openaire   +1 more source

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