3 Sources linked with Conditionals

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Lenny C asked Feb 23, '21 Ben Wilson commented Mar 15, '21

3 Sources linked with Conditionals

Hi! I have 3 processors with processing times following their own bounded distributions.

I would like to link the processors so that when the processing time of one processor is going to be at the upper bound for its input, the other sources do not produce any input (or their created objects are destroyed).

How can I link the processors and sources this way in Flexsim?

File attached for reference:

Counter Openings.fsm

Software Version:

FlexSim 20.1.3

flexsim 20.1.3 processor statistical distribution

counter-openings.fsm (43.0 KiB)

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Benjamin W2 commented · Feb 23, 2021 at 05:42 PM

Hi @Lenny C,

If I understand correctly, if a processing time of one of your processor is above some threshold, you want to disable all other sources not attached to that processor and destroy any other flowitems that those other sources have created. Is this correct?

If this is not correct, can you explain your process in a little more detail?

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Lenny C Benjamin W2 commented · Feb 24, 2021 at 01:52 AM

Hi @Benjamin W2! That is correct. The reasons behind this are:

The number of input items to my processors ranges from 1-16
The processors take a constant amount of time to process 1 input (e.g. 10s, 15s)
The 1-16 materials are split between 3 processors, which combine their output before being conveyed away
To account for the effect of input distribution to processing time, I've placed a range of process timings into the processors in proportion to the % of inputs which typically go into the processor (e.g. 30% of the time * 10s * [some number between 1-16])
This works fine, except for the case where there is only 1 input item. In this case, it should not be fractionally split between the 3 processors - only one processor should process it
Hence when the input number is 1, it should choose only 1 processor and close off the other two until entry of the next input number between 1-16

Hope this clarifies!

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David Chan Lenny C commented · Feb 25, 2021 at 03:41 AM

@Lenny C

Lukas, your modeling approach might not be the right approach to the situation. May be if you could share your scenario, it will easier for us to provide a way to model it.

David

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Ben Wilson ♦♦ commented · Mar 15, 2021 at 11:57 PM

Hi @Lenny C,

We haven't heard back from you. Were you able to solve your problem? If so, please add and accept an answer to let others know the solution. Or please respond to the previous comment so that we can continue to help you.

If we don't hear back in the next 3 business days, we'll assume you were able to solve your problem and we'll close this case in our tracker. You can always comment back at any time to reopen your question, or you can contact your local FlexSim distributor for phone or email help.

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