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Posted

I am running some experiments on my model. I have a couple of transporters delivering fuel to three server nodes. I am trying to have the model maintain adequate fuel levels at the servers despite disruptions. Currently I have 4 responses (1 for each server and 1 that sums their fuel levels) and the responses are based on the expressions: 

Input@LineCompany1.AssociatedStationLoad

Input@LineCompany2.AssociatedStationLoad

Input@LineCompany3.AssociatedStationLoad

and FuelTotal: Input@LineCompany1.AssociatedStationLoad + Input@LineCompany2.AssociatedStationLoad + Input@LineCompany3.AssociatedStationLoad

I get responses as such: 

image.png.ac3e824231ab5a2b1faad3eee7bee59b.png

with the ACoFuel, BCoFuel, and CCoFuel ranging between 0 and 2 and FuelTotal ranging from 0 to 3. The capacities of these server nodes are 0 to 12 and everything is handled in integers. I am confused on how these responses are being calculated and any light that could be shed on this would be greatly appreciated.

Posted

every single cell in the responses table is the average of replications. So, that can be real number at the end of the experiment run. 

Posted

That is what I thought. However, my results are not making any sense. I see the following:

interdictionresults.png.bec0ef320f2bab6b9c10b92fa3d64efb.pnginvertedinterdictionresults.png.bdb9034bc537bb66714073b29b3dcd8b.png

Logically, adding 5 hours of travel time via an interdiction should lower the responses (at the very least the FuelTotal) however, this is not the case. Just as a quick test I changed the interdictions to negatives and received more logical results. However, when I view individual runs of each of these cases, the opposite of these results is what I receive: Fuel levels plummet and reach 0 multiple times during the scenario since the transports can't keep up (w/ 5hr interdiction) or the transports 'teleport' to the ACo node since there is a -5hr interdiction and therefore the transports are always able to keep the servers at high fuel levels.

I must be missing something here.

Posted

at this point it is very hard to say anything without seeing the modeling logic? I suggest u to track your model run using track. 

Posted

Hi Cwitte, 

can not open your model? I think the we are using different editions of simio or your file is corrupted?

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