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According to (3), the rotor motion equation of multi-machine power systems can be derived as below [20, 21].
A parametric modal model is developed from conservation of momentum, a second order linear distributed stator and ballistic rotor motion.
It includes five degrees of freedom of rotor motion interacting with the bearings of non-linear characteristics.
Recently, a linear parametric model of this eccentricity force due to the arbitrary rotor motion was presented.
In the case of a rotor with a mass-point, only divergence instability of the rotor motion can be observed.
Eccentric rotor motion induces an unbalanced magnetic pull between the rotor and stator of cage induction motors.
Similar(40)
Some of the challenges when performing CFD analysis in these machines are the complexity of the rotors' motion and the properties of the refrigerant.
The technique is described for the rotor's motion stability analysis.
The longitudinal vibrations of the four transducers are superimposed to produce the same circular movements on the four feet, which can push the rotor into motion when a preload is applied.
The insertion of supports – a two-degree-of-freedom isolation system - into rotor's motion equations is performed in two different ways: (1) by adding degrees of freedom and (2) by using the GEP technique.
To capture the interaction between wind loads on the pitch controlled rotor and motions of the floating structure, aero- hydro-servo-elastic simulations have been performed using Ansys AQWA coupled to PHATAS.
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