Hi All,
We have completed a grind to cleanup damage on a turbogenerator journal shaft.
The current surface finish is around 0.4 - 0.6 RA, Could this be too fine for reliable operation?
Regards,
JT
Hello,
I am interested to ask how is the high speed balancing of gas compressors carried out?
Does this always require a high speed balancing facility with a vacuum bunker?
How often is re-balancing required?
What is the typical lead-time and price to complete and how does this compare to...
Hello,
I have a fan hub I am looking to get an idea of the stresses it is under.
Is there a way of appoximating the force normal to the surface given:
- Air/medium density
- Radial velocity
- Fanblade geometery
Kind regards,
JT
Hello,
We routinely bake stators during overhauls after completing a steam wash to remove contamination.
I am interested in getting a better gauge of time required at temperature in order to ensure all moisture is removed.
Completing a PI test intermittently seems to be a logical way to...
Hello,
I have a result file in strand 7 showing a quadrant of a axysymmetric part.
Is there any way in post processing to copy the quadrant to show the complete part?
So i can display this as 1 full ring?
Kind regards,
JT
I am struggling to see the source of my error in this simple simulation
I am trying to verify the stresses on a fabrication when a 30 Ton generator is set down on the indicated areas. There are 4 supports assumed to be fully fixed at this stage in the simulation.
My calculations so far:
- For...
Hi All,
What are the risks of replacing carbon steel magnetic retaining rings with non-magnetic 18-18 forged rings?
Is there a significant difference in flux generatation ? Are there any possible risks in replacing the rings with the modern standard?
18-18 is the unanymous material of choice...
Hello,
We were contacted to advise on our recommended inspection after a generator had been motored at synchronous speed for an extended period of time (40mins)
The entire event was approximately 80 minutes.
1. The field exitation was lost - and generator protection failed to trip - the...
