Re: Friction Effects in Piping Systems

This requirement may be based on their past experience.

But in that case, how do you ascertain the requirement of PTFE pads or SS plates/rollers below the shoes ?

Guides need not have friction.

Regards,
Shreedhar.
----- Original Message -----
From: "KAUSTUBH JOSHI" <kvj@epc.ltindia.com> To: <PipingDesign@yahoogroups.com>
Sent: Monday, April 21, 2003 7:34 AM
Subject: [PipingDesign] Friction Effects in Piping Systems

> Hello All,
>
> A few days ago, a world known consultancy & EPC company suggested us the
following:
>
> 1) While performing the static analysis (flexibility analysis) of the
piping systems, it is not necessary to consider the friction forces. The friction forces are short time generated loads, and act on the system during the thermal expansion. The friction forces diappears after the thermal movement of the piping. That's why friction should be excluded from static piping stress analysis (flexibility analysis).
>
> 2) There will be no friction at the guide side surfaces or the limit
stops. The friction will be there only for the resting supports.
>
> What are your views on these?
>
> Regards,
>
> Kaustubh
>
>
>
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Received on Mon Apr 21 05:41:00 2003