Operator and flow item flow issue

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Pooja I asked Apr 11 2023 at 2:20 PM Pooja I commented Apr 18 2023 at 11:01 AM

Operator and flow item flow issue

Hello Everyone,

I have applied triggers in this model.

1. The boxes come 2 at a time but some of the boxes in middle have space in between therefore boxes should be one above the other.

2. Operator should always pick the upper box.

Please find the attached model below:-

Operator and box flow.fsm

Software Version:

FlexSim 23.1.1

operator flow items

operator-and-box-flow.fsm (51.8 KiB)

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Answer 1 · 2023-04-12T06:56:56Z

Felix Möhlmann answered Apr 12 2023 at 6:56 AM Pooja I commented Apr 18 2023 at 11:01 AM

Something like this? (20% of upper boxes are run through the processor)

operator-and-box-flow-fm.fsm

I also edited the item spacing on the conveyor and the triggers to showcase another way of having them overlap in the forward direction on the conveyor.

operator-and-box-flow-fm.fsm (50.2 KiB)

· 9

Pooja I commented · Apr 12 2023 at 12:09 PM

Please can you guide me to how you have mapped 20% in the model.

And if I apply this in inches model the boxes are not placed on each other.

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Felix Möhlmann Pooja I commented · Apr 12 2023 at 12:26 PM

The 20% are part of the case function in the decision point's arrival trigger.

item.location.z > 0.001 && uniform(0, 1, getstream(current)) > 0.8

The expression consists of two comparisons that are linked by a logical AND (&&), so both comparisons must the true in order for the expression to return 1/true. Otherwise it returns 0/false.

The left part checks if the item is the upper one (z-location > 0). The right expression generates a random value between 0 and 1 (uniformly distributed) and checks if it is larger than 0.8, which it should be in 20% of the cases. (Conversely the expression could also check if the value is smaller than 0.2.)

If both conditions are true, the item is send to the exit transfer that leads to the processor.

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Pooja I Felix Möhlmann commented · Apr 14 2023 at 10:17 AM

Hello @Felix Möhlmann ,

Thanks for the response.

We have mapped 20% but only 9 boxes are going through processor from 100 boxes therefore 20 boxes should process through processor.

Please guide me for this issue

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