Hello everyone, my question maybe a little bit fundamental. In caesar user guide there is an example about harmönic analysis, i want to ask where did the mass come from since in input i dön't see any weigt of pipe, so where did the -3.214 lbm come from?

This is an example (actually a benchmark job) obtained from the sited reference. The pipe density is defined as zero, and the mass at each node is given.

(Typically the mass assigned to a node is 1/2 of the mass of each pipe that frames into the node.)

Thanks Richard....i appreciate your quick response. could you refer me to the sited reference please...

The CAESAR II Applications Guide, page 8-2:

I. S. Tuba and W. B. Wright, “Pressure Vessel and Piping 1972 Computer Programs Verification An Aid To Developers and
Users.” The American Society of Mechanical Engineers. New York, 1972. Problems 6 and 2.

Thanks Richard....

Hello everyone,

In this harmonic analysis tutorial, it is said that the magnitude of the force is 95 pounds.
How is it calculated ?

In the case of a centrifugal pummp creating an harmonic force at suction and discharge nozzles, should I use the same formule to calculate the harmonic forces ?

Image of the pump: http://www.hostingpics.net/viewer.php?id=611631PompeHPfostonkin.png