Results 41 to 50 of about 844,475 (305)

Development of spherical motor (2nd report, Rotor posture detection and feed-back control)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Spherical motor is a multi-degrees of freedom actuator which can be rotated in various directions. However, the control method of the completely arbitrary direction was not fully established in the conventional research. This study develops a controlling
Nagayoshi KASASHIMA   +2 more
doaj   +1 more source

Quantal rotation and its coupling to intrinsic motion in nuclei [PDF]

open access: yes, 2016
Symmetry breaking is an importance concept in nuclear physics and other fields of physics. Self-consistent coupling between the mean-field potential and the single-particle motion is a key ingredient in the unified model of Bohr and Mottelson, which ...
Matsuyanagi, Kenichi   +3 more
core   +2 more sources

Analysis of the rotor dynamics characteristics of multi-degree-of-freedom permanent magnet synchronous motor

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
The spherical shell rotor is contained in the multi-degree-of-freedom permanent magnet synchronous motor. When the rated speed of motor is close to the critical speed, the motor will generate multiple resonances, which will affect the normal operation of
Zheng Li   +3 more
doaj   +1 more source

Temporally stable rotational coherent states for molecular simulations. I. Spherical and linear rotor cases.

open access: yesJournal of Chemical Physics, 2020
We reformulate a previous rotational coherent state (CS) to obtain temporally stable (TS) CSs for the spherical rotor (SR) and linear rotor (LR): TSSR and TSLR CSs, respectively.
Christopher Stopera, J. Morales
semanticscholar   +1 more source

Technological aspects of thin film formation on the rotor of spherical gyroscopes

open access: yesJournal of Physics: Conference Series, 2020
A scheme of fixation in a technological device during thin film deposition process is considered for the spherical rotor of electrostatic and cryogenic gyroscopes.
M. A. Tit, A. Scherbak
semanticscholar   +1 more source

Examination of High-Torque Sandwich-Type Spherical Ultrasonic Motor Using with High-Power Multimode Annular Vibrating Stator

open access: yesActuators, 2018
Spherical ultrasonic motors (SUSMs) that can operate with multiple degrees of freedom (MDOF) using only a single stator have high holding torque and high torque at low speed, which makes reduction gearing unnecessary.
Ai Mizuno   +5 more
doaj   +1 more source

Analytical modelling of No‐load magnetic field for equivalent poles of a new type of double‐stator PM poles spherical motor

open access: yesIET Electric Power Applications, 2022
A double‐stator swing rotating permanent magnet spherical motor (SR‐PMSM) is designed, which can realize rotation, swing and spiral motion, and is used in the multi‐degree‐of‐freedom motion fields of industrial robot joints, torque gyroscopes, panoramic ...
Qing Chen   +6 more
doaj   +1 more source

Changes in power generation performance of an undershot cross-flow-type hydraulic turbine in an irrigation channel due to snow masses passing through the rotor

open access: yesHeliyon, 2023
This study is focused on the development of a microhydraulic turbine that can stably and efficiently generate electricity even in channel where snow masses frequently flow down.
Eiichi Satou   +6 more
doaj   +1 more source

Design and Impedance Control of a Traveling Wave Ultrasonic Motor with a Spherical Rotor

open access: yes, 2019
A traveling wave ultrasonic motor (TWUM) with a spherical rotor was designed and fabricated for a haptic interface. The mechanical characteristics testbed was set up to test the performance of the motor under the modulation of frequency and phase ...
Yu Guo, Aiguo Song, Zhi-jun Sun
semanticscholar   +1 more source

Investigation of free fatty acid reduction from mixed crude palm oil using 3D-printed rotor–stator hydrodynamic cavitation: An experimental study of geometric characteristics of the inner hole

open access: yesUltrasonics Sonochemistry, 2023
A continuous esterification process is employed to decrease the free fatty acid (FFA) concentration of FFA-rich mixed crude palm oil. Both optimal and recommended conditions are determined for the esterification reaction conditions and the geometry of ...
Ye Min Oo, Krit Somnuk
doaj   +1 more source

Home - About - Disclaimer - Privacy