Water Meter Vibration Issue
Water Meter Vibration Issue
(OP)
One of our clients wants to purchase a water meter from us. That clients wants to install this meter between two pumps operating at frequency of 200~400Hz. Coincidently, our meter's natural frequency is around 200Hz. Would this cause the meter be destroyed by vibration excited by two coincidental frequencies? If it would, how much should the natural frequency of the meter be increased to avoid such a problem?





RE: Water Meter Vibration Issue
Can you get a spectrum of the pressure in the system when it is running?
Cheers
Greg Locock
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
Franck
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
Garland E. Borowski, PE
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
It is unlikely that you will be able to shift your natural frequency by this much.
Cheers
Greg Locock
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Water Meter Vibration Issue
Do you think lowering the frequency of the meter would work?
James,
Since you are on the lower end of the expected excitation frequencies, the same principal in the opposite direction may be the way to go. If the pumps steadily operate at 200-400Hz (as opposed to a variable speed pump) and your meter operates at 200 Hz, you may be able to lower the operating frequency to 160-170Hz and avoid the excitation. Is this an option?
Garland
Garland E. Borowski, PE
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
RE: Water Meter Vibration Issue
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.