A new approach to field modelling

Language Global English Deutsch Espanol Francais Italiano Danmark Ceske Chinese no-Pyccku

RSS Twitter Facebook Linkedin YouTube

>> >> >>

Salient pole mechanical stress

Salient pole of turbine generator is subject to the centrifugal force loading.

Problem Type:
Plane problem of stress analysis.

Due to symmetry only one half of the pole is simulated.
yaverage = 0.12 m
Lz = 1 m,
S = 0.08 * Lz m2

salient pole centrifugal forces

Young's modulus of steel E = 207000 N/mm2
Density of steel ρ = 7800 kg/m3
Poisson's ratio ν = 0.3.
Rotational speed ω = 50*2π rad/sec.

Winding mass m = 600 kg;

Determine the mechanical stress distribution in the salient pole.

The internal centrifugal force acting on the steel pole can be calculated as:
Fr(r) = ρ*ω2*r [N/m3]

Winding adds a vertical force which is
Fy = mω2*yaverage [N].
Since we simulate only half of the pole the force value is divided by factor of 2.
We consider that Fy is uniformly distributed along the contact surface S.

Mechanical stress distribution in the pole is shown on the picture

stress distribution in the psalient pole

View movie Download video.

Download PDF icon View simulation report in PDF.

Download icon Download simulation files (files may be viewed using any QuickField Edition).

There are no restrictions applied to the QuickField Student Edition postprocessors.
You can view field maps, make plots, calculate integrals and print pictures in the same way that the Professional Edition users do.