@Tmoose unfortunately I can not provide that document because of company confidentiality.
@electricpete Balance process is already done with the method you suggested. However, this method is quite expensive and time consuming, because there are not enough sensors on the platform, we have to do...
@electricpete I understand your offer but as far as I know there is no such balance machine that can perform at 33krpm with reliable results on 0.1 g.mm sensitivity. Moreover when we search on benchmark studies we have a same assembly concept but they balance their assembly at 7krpm. That's why...
Sorry for the late response.
I guess there is some misunderstandings about the problem. Normally bearing force due to the unbalance can be calculated according to ISO 21940. As far as I know this calculation for rigid rotor. On dynamic or flexible rotor system, this can be multiplied by some...
Hello All,
Recently I have been searching how to determine the balancing speed of flexible body. Let me give an example;
There is flexible assembly which normally operates at 28.000 rpm. Until that speed, there is no critical mode. The nearest critical mode is around 33.000 rpm. Normally...
@GregLocock many thanks man, I read the same thing that recommends Helitune keyphasor sensor with reflective band.
@Tmoose Thank you for the answer. It has been solved!
Hello everyone,
I have a high speed shaft which turns around 30.000 rpm. Normally I am using 4-run method but this method is time-consuming me pretty much. I know it is quite useful but It is quite time wasting, I mean one reference run + 3 times with changed position of trial mass is hard to...
@mfgenggear
I know the formula which are r2=power(Facewitdh,2)/(8*Crowning Drop) and r1=r2*tan(pressure_angle)
The question is how can i decide how much crown drop I need? In my opinion it must depend on my misalignment requirement. I have searched lots of AGMA standarts, everyone of them...
Hi Everyone,
Is there anyone who can mathematically show the correlation between misalignment value and crowning radius for spur gear. I have a drawing of one spur gear which contains crowning modifications not only on the flank but also on the tip.
Drawing has the distance between the outside...
