Question Can you provide the formula I need?

[ReveurGAM]

I need to know how to calculate a result that will give a value for each fan's results based on the averaged: RPM of multiple tests and time to stop in seconds. It needs to even things out so that the RPM factor is equalized to account for differences in the max RPM.

This.

 

[USAFRet]

This.

"time to stop"

Then, as above....
Measure the time from XXX RPM to zero RPM, for each fan.
Put them all on a graph, and see what slopes result.

 

[COLGeek]

Closing this thread now. As a reminder, civility is required by all. Especially toward those who are trying to help.

 

[Ralston18]

@ReveurGAM

This: "I just cannot pinpoint what else needs to be in the formula."

I do not believe that anyone can give you that formula. You are into experimental research and as such a researcher it is on you to work out potential formulas. Then submit the forumuls for peer review,

When you are getting down to problems with inductors and capacitors only you can decide how to incorporate those issues into the formulas. Personally I think those issues are moot. Mostly because there are potentially greater errors in the overall scope of the fan project.

What to do:

You work out some formulas that you feel are worthy of discussion along with the applicable pros and cons of each forumla. Variables, constants, assumptions, margins of error, meaningful significant digits, etc..

Post those formulas.

And actually run some fan tests against those formulas and objectively present the results including anomolies and possible reasons for those anomolies.

When you get to that point start a new thread.

This community exists to help resolve IT problems. And speaking for myself, I have made suggestions within this thread and within other threads that you have posted with the intent to facilitate your efforts.

I am closing this thread now.