The stress distribution in the rotator of a high-shear homogenizer was studied by theorically analying. A set of formulas obtained which analytically express stresses with the structural parameters provided the strength constraints to the procedure of structural parameter optimization for this kind of rotator.
On the basis of a conventional permanent magnet (PM) synchronous generator's construction, a novel kind of Hybrid Excitation Permanent Magnet Synchronous Generator (HEPMSG) is introduced by inserting exciting winding in the stator or rotor.
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Investigation in Determining the Relative Position between Stator and Rotor of a PMSM in Electromagnetic Field Calculation
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When designing a universal finite element software for analyzing a permanent magnet synchronous motor, the relative position of the stator and rotor remains unknown.
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Rotor broken-bar fault diagnosis of induction motor based on HHT of the startup electromagnetic torque
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This paper presents a new method for rotor broken-bar fault diagnosis of induction motors.
The positioning of the motor is achieved by the cooperation between the stator projections and rotor teeth, and the number of the rotors determines the stepping angle of the motor.
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The proposed method helps determine the heat transfer boundary conditions in finite element analyses of temperature and thermal stress fields of steam turbine rotors.
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Consideration was given to its applications to the synchronous and induction electrical motors, phase locked loops, and autosynchronization of the unbalanced rotors.
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Such cavities are encountered, for example, in the rotors of steam and gas turbines.
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The gas forces acting on spherical and disc rotors revolving in evacuated cavities
The nitrogen rotational relaxation process is numerically investigated on the basis of the Monte-Carlo method and the calculation of the classic three-dimensional equations of motion of rigid-rotator molecules.
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The energy exchange between translational and rotational degrees of freedom (TR-exchange) is calculated by solving the dynamic problem of the interaction between rigid-rotator molecules within the framework of classical mechanics.
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The field variability with an amplitude of ~4 kG and a zero mean is discussed in terms of an oblique rotator model.
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We analyze the statistical distribution of weakly radiating pulsars, i.e., radio pulsars that have passed to the stage of an orthogonal rotator during the evolution of the inclination angle X.
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Variability of the Li I 6708 ? resonance doublet and rare-earth lines was detected, which can be explained using an oblique rotator model with the lithium spots located at the magnetic poles.
Whereas the P and Q for a rotor broken bar motor are represented by an ellipse because they comprise an additional frequency component 2sfs (s is the slip and fs is the supply frequency).
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To monitor and control its thermal state, a rotor's temperature and thermal stress fields must be calculated in real time.
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Motion control of a rotor with a cavity with a viscous fluid
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A control for a rotor with a cavity containing an ideal liquid.
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A control for a rotor with a cavity containing an ideal liquid, II
This paper deals with the forced harmonic responses of the discrete or continuous damped systems to harmonic excitation, where the viscous damping matrix cannot be diagona-lized.The general explicit expressions of the response solutions are given. Hence, general and analytical study of some phenomena in vibration is made with these expressions. For example, the"fixed amplitude point" phenomena in the single damping systems have been demonstrated generally; the condition, under which all forces that exert on...
The motion of free-rotor gyroscope in the magnetic fields is treated analytically by perturbation method. Dynamical characteristics of the gyroscope during spin-up and erection procedure, and the influence of the stray magnetic field on gyro's drift and speed attenuation are investigated.
In this article a family of variational principles for 3D transonic steady relative flow with embedded shocks in a turbomachine impeller of axial, radial or mixed flow type is developed. Its special feature is to take full advantage of natural boundary conditions and "artificial interfaces," so as to facilitate the handling of various complex boundary conditions. As a result, all boundary conditions in the problem under study have been converted into natural ones Moreover, it is also shown that by taking va...