Vibration

From: <Farhad>
Date: Mon Feb 12 2007 - 07:15:00 EST

Dear Imran,

Definitely, you should use CAESAR II software to solve this problem. There are a few steps as follows:

1- Collect field data (displacements, RPM of pumps, pipe support configuration, etc.)

2- Model piping system in CAESAR II.
3- Run static analysis.
4- perform Harmonic analysis and enter harmonic displacement at pump-

pipe node.
5- Tweak some dynamic parameters to model exact problem. 6- Add some stiffness (pipe support) to your piping system, wherever possible.
7- Run static then dynamic analysis to see changes.

I hope it helps you.

Regards,
Farhad

• In PipingDesign@yahoogroups.com, "Imran M Ahmed" <imahmed@...> wrote:
  >
  > Hello Guys!
  >
  >
  >
  > We are facing vibration problem in the piping system of our plant.
  The
  > scenario is that the lean Amine pumps operate with a vibration of
  approx
  > 6 mm/sec pk on DE and 3.8 mm/sec pk on NDE. The vibration gets
  > transmitted through the piping into the standby pump which is not
  in
  > operation. The vibration recorded on the standby pump is
  approximately
  > 3.0 mm/sec pk. Do you have suggestion how to control this
  vibration?
  >
  >
  >
  > Regards,
  >
  >
  >
  > Imran Ahmed
  >
  >
  >
  >
  >
  > [Non-text portions of this message have been removed]
  >
  

Received on Mon Feb 12 07:15:00 2007