Hello,
I am trying to model the situation shown in the attachment. Does anyone have an idea on how to enter this specific situation in CII? I have tried a few varieties but would like some insight from someone more experienced if possible. Thanks in advance.
B

Owen,

Are you modelling whole HEX? or just want to model HEX support point?
Let me clarify, is the pipe line ends with pump discharge and the other area is scope of HEX?
you need to give us more detail.

Hello MK,
thanks for your reply. I am not trying to model the actual HEX. I need a placeholder that behaves like the HEX would. What I am after is the reaction load on the pump nozzle. A nozzle check on the HEX would be a bonus. I have attached a printout of what I have tried. With this model I get huge reactions on the pump nozzle in the OPE cases if the HEX support is an anchor. I am expecting something about a factor of 100 lower than what the results show in the OPE cases.

It is unclear to me how you modeled the stiffness connection between the HX anchor and the piping out of the HX (the intersection of those two zero-weight rigid elements near your arrowhead. You could run a rigid element right from that anchor to this intersection.
I also do not see any other support for your HX - a support that would reduce a deadweight bending moment on your pump.
If you wish, you could calculate the HX thermal deflections by hand and apply those displacements to the HX nozzle. You could then include those displacements (e.g., D1) in your load set and remove the HX from your model.

Hello Dave,
Thanks for your reply as well. Unfortunately the support situation is an existing condition. I guess there was not enough room for a second support as the HEX is pretty short and there is not a lot of room to work with. I was trying to enter as much detail as possible. I thought entering a rigid from the anchor to the intersection would make the HEX too stiff and therefore would increase the reaction load on the nozzle even more. The intersection is the point I am not sure how to handle in CII. I will try what you suggested and see how that works out. Thanks again.

You could run a rigid element directly from one "arrowhead" to the other. The thermal growth of that element would develop a reasonable thermal strain on your nozzle.
Is your HX support an anchor or a simple Y support?
Is your nozzle load caused more by thermal strain or weight? Your nozzle may be supporting the weight of the HX overhang.

Owen,

Take a look at the attachment and please consider what Mr.Dave mentioned. That system seems to be needed more evaluation.