ISO 14839-1:2018 pdf free
ISO 14839-1:2018 pdf free.Mechanical vibration一Vibration of rotating machinery equipped with active magnetic bearings
number of degrees of freedom of the rotor motion which are controlled by the AMB (3.1.3)
EXAMPLE a) 1-axis-controlled AMB: an AMB which actively controls vibration and motion only for one degree of freedom of the rotor;
b) 2-axis-controlled AMB: an AMB which actively controls vibration and motion for two degrees of freedom of the rotor;
c) 3-axis-controlled AMB: an AMB which actively controls vibration and motion for three degrees of freedom of the rotor.
sum of iron loss due to eddy currents and hysteresis in the rotor and the stator, copper loss (ohmic loss)in coils, windage loss on the bearing rotor surface and circuit loss in the electrical equipment (cable,electronic cabinet)
active magnetic bearing (3.1.3) which includes the function of rotor position detection without the use of direct displacement transducers (3.4.3)
ferromagnetic portion of the rotating shaft on which the axial magnetic forces are exerted
diameter of the radial magnetic bearing (3.1.9) rotor
Note 1 to entry: See d in Figure 3.
measured fictitious displacement of the rotating shaft due to the effect of the non-circularity and non-coaxiality of the shaft shape
measured fictitious displacement of the rotating shaft due to the magnetic or electrical non-homogeneity of the position transducer target (3.4.6)
product dN of the diameter d (mm) and the rotor speed N (r/min)
Note 1 to entry: The diameter, d, is defined as:
a) the outer diameter of the rotor of a radial AMB if the stator is external to the rotor (see d in Figure3);
b) the inner diameter of the rotor of a radial AMB if the rotor is external to the stator;
c) the outer diameter of the rotor of an axial AMB (see da in Figure 4).
core of the stationary AMB (3.1.3) components made of ferromagnetic or other magnetically permeablem aterials
stationary section of the radial magnetic bearing (3.1.9) around which the magnetizing coil (3.3.4) is wound.ISO 14839-1 pdf free download.
