All Dear

Does somebody know how the pvlite calculate the Friction Load for saddles at heat exchanger or/and horizontal vessel? I think this force is due to thermal expansion, but which formula for this calculation?

It is the coefficient of friction specified in the saddle dialog times the weight load on top of the saddle.

THANKS A LOT, YOU ARE RIGHT.

HELLO

BUT WHY DOES THE PVELITE CALCULATE VERTICAL REACTIONS AT EACH SADDLE DUE TO SUPPOSED MOMENT GENERATED BY FRICTION LOAD PLACED ON CENTER OF HEAT EXCHANGER OR/AND HORIZONTAL VESSEL? FOR ME THE FRICTION LOAD ACT AT THE END OF MOBILE SADDLE AMONG THE TEFLON PLATES FOR EXAMPLE E DOES NOT GENERATE VERTICAL REACTIONS, ONLY HORIZONTAL REACTIONS.

Hi botaodaniel1313

If you were to draw a free body diagram, you would see the forces and reactions that are operating on the vessel. The friction component is a horizontal force. It can produce vertical force as there is a couple acting. For example, when you apply the front brake of a motorcycle, the front of the motorcycle dips. This is because the friction with the road produces a couple (moment) that rotates the bike.