Re: Caeser-II modelling of pump reducer & trunnion.

From: <aluser2>
Date: Tue Sep 06 2005 - 15:39:00 EDT


no easy answer, but you are right. These models lead to high forces and moments
and many of the results are not realistic. Have you a rigid trunnion. Did you anchor the base.
How are the pumps modelled. I would question any answer without knowing these key things

I'm a bit curious why post here and not send to Coade tech support. You pay your fees to get tech support.
Its very costly but you are paying for the advice so why not use it?.. rather than guesses fom free answers.
You can send them your model. theres a lot of issues around the way you have modelled it.

>
> Dear members ,
> I have one query about Caesar modelling technique for reducer & trunnion.
> For trunnion at the pump end suction nozzle or side suction pump:
> It is normally observed that high forces & moments are imposed on the
> nozzle due to the thermal expansion of the reducer offset,especially in
> case of eccentric reducer (FSU ).Similarly large variation in results are
> seen if the trunnion connect point on the elbow is changed(say 45-41 deg.
> or 30deg.).It is also noted that many of the results are not
realistic.What
> should be the best possible method of modelling for this purpose.
>
> Regards,
> Rajesh V Balapure
>
> [Non-text portions of this message have been removed]
>
>
>
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Received on Tue Sep 06 15:39:00 2005

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