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Study on Causes and Compensation for Speed Attenuation of a Spherical Superconducting Rotor
IEEE Transactions on Applied Superconductivity, 2017When the superconducting magnetic suspension device is in operation, the spherical superconducting rotor will keep rotating at a high speed above 200 Hz. It brings the rotor a large angular momentum and high orientation stability, which is one of the preconditions for achieving high accuracy of the device.
Hao Wang, Xinning Hu, Chunyan Cui
exaly +3 more sources
Identification of Rotor Position of Permanent Magnet Spherical Motor Based on Compressed Sensing
IEEE Transactions on Industrial Informatics, 2023The accurate identification of the rotor position of permanent magnet spherical motor (PMSM) is crucial to its closed-loop control. A novel method for rotor position identification of the PMSM based on compressive sensing is proposed, which can obtain ...
menglai mi, Yanbo Che, Hongfeng Li
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Performance Study of a Lucid Spherical Rotor
Advances in Mechanical Engineering and Mechanics II, 2021Nowadays, world population is growing very rapidly and need for electricity is rising. Due to adverse influence of non-renewable fuels exploitation on public health, global electricity need for renewable energies is predicted to rise. Hydraulic energy has got a growing interest as one of the clean and renewable energies.
Mosbahi M. +3 more
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IEEE Transactions on Instrumentation and Measurement, 2023
Since the spherical reluctance motor (SPRM) works in saturation, it is difficult to estimate the rotor position. In this article, a new rotor position estimation method for SPRM is proposed.
Mingfeng Shi, Qunjing Wang, Guoli Li
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Since the spherical reluctance motor (SPRM) works in saturation, it is difficult to estimate the rotor position. In this article, a new rotor position estimation method for SPRM is proposed.
Mingfeng Shi, Qunjing Wang, Guoli Li
exaly +2 more sources
Ultrasonic Motor with Spherical Rotor for Nanosatellite Orientation
2020 International Conference Mechatronic Systems and Materials (MSM), 2020Piezoelectric devices are widely used in sensing and actuating applications. Such devices can be found in photo cameras, laser beam control systems, optical and medical devices and etc. One of the possible applications where piezoelectric actuator can be used - aerospace engineering.
Vytautas Jurenas +2 more
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Note: Attenuation motion of acoustically levitated spherical rotor
Review of Scientific Instruments, 2016Here we observe the attenuation motion of spherical rotors levitated by near-field acoustic radiation force and analyze the factors that affect the duration time of free rotation. It is found that the rotating speed of freely rotating rotor decreases exponentially with respect to time.
P. Lü +5 more
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Industrial Lubrication and Tribology
Purpose The transient loads on the spherical hybrid sliding bearings (SHSBs) rotor system during the process of accelerating to stable speed are related to time, which exhibits a complex transient response of the rotor dynamics. The current study of the
Weiqiang Xue, Jingfeng Shen, Yawen Fan
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Purpose The transient loads on the spherical hybrid sliding bearings (SHSBs) rotor system during the process of accelerating to stable speed are related to time, which exhibits a complex transient response of the rotor dynamics. The current study of the
Weiqiang Xue, Jingfeng Shen, Yawen Fan
exaly +2 more sources
KMFDSST Algorithm-Based Rotor Attitude Estimation for a Spherical Motor
IEEE Transactions on Industrial InformaticsRotor attitude estimation (RAE) is a predominant approach to controlling spherical motors, but there is a margin for its improvement. This article proposes a visual RAE method by using the Kalman filter-based multi-object fast discriminative scale space ...
Sili Zhou +6 more
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Research of the Static Balance for Spherical Rotor
Applied Mechanics and Materials, 2007For spherical rotor of gyroscope and some other high speed rotor, static balance is important. The paper introduces a static balance method for spherical rotor: the position of the spherical rotor is fixed by the use of the special clamp apparatus, and then determines the unbalance mass using the electronic balance.
H.B. Zhang, L. Zhou, Ying Xue Yao
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An Improved Starting Strategy for a Spherical Superconducting Rotor
IEEE Transactions on Applied Superconductivity, 2018Due to the absence of friction, a superconducting rotor can achieve a very high speed to obtain a large angular momentum for high-precision measurement of the angular displacement and angular velocity. However, in practice, the superconducting rotor will do vibration and collide with the inner wall of the rotor cavity at a certain speed during startup,
Hao Wang +4 more
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