Natural Frequency of a Steel Plate
Natural Frequency of a Steel Plate
(OP)
Here is my problem: I working on a pump station containing 3 large pumps.
-A shaft extends 17 feet below each pump through a bearing which is mounted in the middle of a 3 ft x 3ft x 3/4" steel plate.
-The pump shaft operates at 1750 RPM.
The pump manufacturer wants me to determine the natural frequency of the steel plate to ensure that resonance does not occur and result in undue vibration in the plate. Any assistance would be greatly appreciated as I don't have a copy of Roark's book in my office.
-A shaft extends 17 feet below each pump through a bearing which is mounted in the middle of a 3 ft x 3ft x 3/4" steel plate.
-The pump shaft operates at 1750 RPM.
The pump manufacturer wants me to determine the natural frequency of the steel plate to ensure that resonance does not occur and result in undue vibration in the plate. Any assistance would be greatly appreciated as I don't have a copy of Roark's book in my office.






RE: Natural Frequency of a Steel Plate
Anyway, you need to model the plate plus support in a program able to do dynamic analysis and extract the first natural modes of vibration. Place the holes in the plate, just in case. And then give the results to the manufacturer., RISA 3D, ETABS, SAP 2000 and many more programs able to do dynamical analyses may provide what you want.
RE: Natural Frequency of a Steel Plate
So you should better specify your problem to get closer advice.
prex
http://www.xcalcs.com : Online engineering calculations
http://www.megamag.it : Magnetic brakes and launchers for fun rides
http://www.levitans.com : Air bearing pads
RE: Natural Frequency of a Steel Plate
Cheers
Greg Locock
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RE: Natural Frequency of a Steel Plate