Le modèle s'arrête / Model stops. Why ?

Question

question

Thomas C2 asked Jan 16 2021 at 3:12 PM Ben Wilson commented Jan 25 2021 at 3:20 PM

Le modèle s'arrête / Model stops. Why ?

Bonjour, mon modèle s'arrête de tourner après 5 items placés dans le Rack, sans que celui ci soit full. Pourtant tout semble fonctionner: la Source, les queues, les process et les operateurs.

Je vous joins le modèle. Quelqu'un aurait il une solution ?

My Model stops after 5 items places in the free rack. Everything seems fine: source, queue, process and operator... I join the model. Anyone as a suggestion to solve it ?

Merci/Thanks

Frozen.fsm

Software Version:

FlexSim 21.0.0

model stops running stopmodel

frozen-pizza-2.fsm (58.9 KiB)

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Answer 1 · 2021-01-16T15:52:44Z

Jason Lightfoot answered Jan 16 2021 at 3:52 PM Ben Wilson commented Jan 25 2021 at 3:20 PM

This is not your fault exactly. The problem appears to be the the open input activity is scheduled before the last part finishes it's process and releases the operator from its Utilize task. Not only that but the new part enters and finished the setup before the last item's process finish event fired, which means that it it requests the operator who is currently finishing the last item. Since it doesn't get the operator it stops the whole processor which takes all events off the event list so the operator is never released from the task of finishing that item on the processor.

I think you'll find that this isn't a supported configuration as described in the manual here.

1610812359574.png (20.4 KiB)

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Thomas C2 commented · Jan 16 2021 at 4:03 PM

Thanks a lot Jason. I'm not sure to understand how to fix that. How can I set up the input activity ? (in the Source settings ?). Where in my process can I fix what you say ?

By chance, would you correct my model ? (i'm really a begginer...). Would be wonderfull !

Thanks in advance

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Jason Lightfoot ♦♦ Thomas C2 commented · Jan 16 2021 at 4:26 PM

Can you use 4 processors or do you need to process 4 items in one object, and if so why? Can you use process flow - that would probably make it easier for you to understand and a better representation of the real process.

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Thomas C2 commented · Jan 16 2021 at 4:44 PM

Yes for sure. It's pizza manufacturing process. In my model:

"Bac": is the source of pizza dough

- "Queue Etalage": is the where the dought are waiting for the "Process Etalage", making batch of 5

- "Processor 1 Etalage": where the pizzaiolo (Operator Marco) is spreading the pizza doughts, making 5 at the same time (that why I set up batch of 5 in the queue.

- "Queue 2": waiting queue before putting the pizza in the oven

- "Process 2": Pizza Oven. The Operator Marco is putting manualy the pizza from Queue 2 into the oven. This process is 30 seconds for 5 pizzas at the same time.

- "Queue Garnish": Where the 5 pizza are queued after Process 2

- "Process 3 garnis": the Operator 2 is taking manually the pizza from Queue Garnish into this process, sprreading cheese and ham on it ;)

- Then it goes to the Conveyor 1 and is stocked in the Rack

Is that clear enough :) ?

Also I would like to show pizza at the end of Process 1 Etalage instead of dough balls sphere (that's another thing !)

Thanks a lot !

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Ben Wilson ♦♦ Thomas C2 commented · Jan 25 2021 at 3:20 PM

Hi @Thomas C2,

Did you get all your questions answered? It looks like you accepted the answer, but then made some additional comments. Before I close this out I wanted to make sure that you reached a good conclusion, but it looks like you had provided some additional information.

Let us know if you're still looking for any help on this question.

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