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diederib

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Posts: 13
Reply with quote  #1 
Hi Everybody,
I'm drawing a blank on what ODA means under "Other Speeds", so I have a couple questions. I've attached a screenshot of the viewer.

1. What is ODA? It's at 3Hz.

2. Is there any other place to find the list of fault frequencies assigned to equipment, assuming that the equipment was configured in RBMwizard and not manually in the Database Setup. I'm looking for a real printable list, not this popup window. Also not when you click the Config Info button in the Database side under tree structure. That gives the bearing numbers, etc. but not the fault frequencies.

3. Anybody know if there is a list of acronyms for the fault frequencies. I've had zero luck using the AMS Machinery Manager help/content.

Thanks!

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Vibe-Rater

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Reply with quote  #2 
I have no idea. But what I would do is go to the old school plotdata, go to a full screen, then fault frequencies, then all frequencies. See what comes up.  rgds  I'm sort of thinking that if it is a gearbox it might be the output shaft.  Was it something generated by the "wizard"?
Walt Strong

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Reply with quote  #3 
The machine is a mixer, correct? If yes, then ODA could be mixer shaft speed or mixer paddle pulsation frequency (#paddles x shaft speed). Could ODA mean Other Driven Accessory, just a wild guess? Ask Harry Potter, since he was good with Wizards!![crazy]

Walt
diederib

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Reply with quote  #4 
Thanks Walt,
Other Driven Accessory! That's a great guess! It does make sense, as this is the output shaft speed to a 3 blade slurry paddle. 

I just don't understand how this information isn't available in the software. Frustrating.

Brad
ssimmon1

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Reply with quote  #5 
Generally, the other speeds are taken from the first point specified of each shaft that's rotating at a different speed than the first. Do you have a point named "ODA"?

For example, on my gearboxes I'll have the following "other speeds": G3H (Shaft 2 IB Horiz), G6H (Shaft 3 IB Horiz) etc...
diederib

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Posts: 13
Reply with quote  #6 
Thank you! It never occurred to me that it was based on a point changing RPM. 
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