Results 21 to 30 of about 844,475 (305)

Position Detection Method of Piezoelectric Driven Spherical Motor Based on Laser Detection

Micromachines, 2022
Laser detection technology has manypromising applications in the field of motor speed and position measurement. Accurate and fast measurement of position information of spherical rotor is very important for motor control.
Zheng Li, Yiding Zhu, Bo Xie, Ye Wang, Xiaoqiang Guo, Hexu Sun   +5 more
doaj   +1 more source

Development and performance analysis of novel design 3-DOF non-integrated runner permanent magnet spherical motor

Engineering Science and Technology, an International Journal, 2023
The main objective of this research is to present a novel design of three degrees of freedom (DOF) non-integrated runner permanent magnet spherical motor (NR-PMSM).
Ahmet Saygın Öğülmüş, Mustafa Tınkır   +1 more
doaj   +1 more source

Analysis and Experiment of 5-DOF Decoupled Spherical Vernier-Gimballing Magnetically Suspended Flywheel (VGMSFW)

IEEE Access, 2020
Due to the capacity of outputting both the high precision torque and the instantaneous large torque, the vernier-gimballing magnetically suspended flywheel (VGMSFW) is regarded as the key actuator for spacecraft.
Qiang Liu, Heng Li, Wei Wang, Cong Peng, Zengyuan Yin   +4 more
doaj   +1 more source

Study on Multidegree-of-Freedom Ultrasonic Motor Using Vibration Mode Rotation of Metal Spherical Stator

Actuators, 2022
Most of the multidegree-of-freedom ultrasonic motors (MDOF-USMs) use a spherical rotor, and the design of the stator is restricted due to the use of the resonance mode.
Ai Mizuno, Hidekazu Kajiwara, Hideki Tamura, Manabu Aoyagi   +3 more
doaj   +1 more source

Design of Unimorph Type 3DOF Ultrasonic Motor

Applied Sciences, 2020
A new design of 3 degrees of freedom (DOF) piezoelectric ultrasonic motor (USM) is introduced in this paper. The concept of this design is to incorporate a spherical rotor between two piezoelectric transducers.
Vytautas Jūrėnas, Gražvydas Kazokaitis, Dalius Mažeika   +2 more
doaj   +1 more source

Sensorless Posture Detection of Reluctance Spherical Motor Based on Mutual Inductance Voltage

Applied Sciences, 2021
In this paper, a sensorless rotor posture detection method based on the mutual inductance voltage of the stator coil is proposed to simplify the position detection element of a reluctance spherical motor.
Jiazi Xu, Qunjing Wang, Guoli Li, Rui Zhou, Yan Wen, Lufeng Ju, Sili Zhou   +6 more
doaj   +1 more source

Influence of an aperture on the performance of a two-degree-of-freedom iron-cored spherical permanent-magnet actuator [PDF]

, 2002
—This paper describes a computational and experimental study of a two-degree-of-freedom spherical permanent-magnet actuator equipped with an iron stator.
Bingham, Chris, Howe, David, Jewell, G. J., Mitchell, J. K., Wang, J.   +4 more
core   +1 more source

IBM-1 description of the fission products $^{108,110,112}$Ru [PDF]

, 2007
IBM-1} calculations for the fission products $^{108,110,112}$Ru have been carried out. The even-even isotopes of Ru can be described as transitional nuclei situated between the U(5) (spherical vibrator) and SO(6) ($\gamma$-unstable rotor) symmetries of ...
A. Gelberg, A.V. Ramayya, Arima, Bohr, Casten, Casten, Che, Davydov, Dieperink, Duarte, Eisenberg, Elliott, Fortunato, Fortunato, Frank, Giannatiempo, Ginocchio, Gore, Hamilton, Hamilton, Heyde, Hua, I. Stefanescu, Iachello, Iachello, Iachello, J. Jolie, J.H. Hamilton, J.O. Rasmussen, Jolos, Leviatan, Lhersonneau, Lu, Möller, Otsuka, P. Van Isacker, P. von Brentano, Pan, S.J. Zhu, Saha, Sakai, Shannon, Siems, Srebrny, Stachel, Stachel, Stachel, Talmi, Troltenier, Troltenier, Van Isacker, Van Isacker, Wang, Wang, Wilets, Wood, Wu, X.L. Che, Y.X. Luo, Yamazaki, Zamfir, Zamfir, Äystö   +62 more
core   +4 more sources

Design, 3D FEM Simulation and Prototyping of a Permanent Magnet Spherical Motor

Actuators, 2021
In recent years, large tilt angles, uniform magnetic flux distributions, strong forces, and large torques for motors have increasingly become important for robotics, biomedical, and automotive applications that have multi-degrees of freedom (MDOFs ...
Umut Yusuf Gündoğar, Sibel Zorlu Partal   +1 more
doaj   +1 more source

A novel spherical permanent magnet actuator with three degrees-of-freedom [PDF]

, 1998
The paper describes a new version of spherical actuator, which is capable of three degrees-of-freedom and a high specific torque. The three-dimensional magnetic field distribution is established using an analytical technique formulated in spherical co ...
Howe, D., Jewell, G.W., Wang, J.B., Wang, W.Y.   +3 more
core   +1 more source