Pull Using Demand Statistical Distribution

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Vanessa B3 asked Sep 10, '17 Vanessa B3 commented Sep 14, '17

Pull Using Demand Statistical Distribution

Hi everyone !

I've created the following model to represent a base stock model, where the reorder point is 66 and the economic lot size is 228, represented by the batch of the first queue. Now, I'd like that the second processor (or a sink) pulled items from the second queue following the statistical distribution normal (6,0.5,0) that represents its daily demand. As in one day, the processor should pull an average of 6 items, varying accordingly to the statistical distribution.

Is there some way to do this?

Thanks !

modelo-base-62.fsm

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pull strategy

modelo-base-62.fsm (18.5 KiB)

Answer 1 · 2017-09-14T01:34:37Z

Michael Machado answered Sep 14, '17 Vanessa B3 commented Sep 14, '17

Are you using the Express Version or Educational/Enterprise/Student version of the software? If you are using the Express Version, the random streams is blocked, so, even if you use any distribution, it will behavior like a deterministic model. Let me know.

· 1

Vanessa B3 commented · Sep 14, 2017 at 01:40 AM

@Michael Machado

Right now I'm using a student version of the software!

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Answer 2 · 2017-09-11T00:46:55Z

Michael Machado answered Sep 11, '17 Michael Machado edited Sep 11, '17

Please, see the attached model and follow the instruction in the image below. Click in the icon inside the red circle and see how I customized the logic in the field 'Pull Requirement'. If I right understood your question, you can use the model to move foward. Also, if you need support into portuguese, e-mail [email protected].

8528-modelo-base-62bymm.fsm

suporte1.png (28.2 KiB)

8528-modelo-base-62bymm.fsm (133.1 KiB)

· 2

Vanessa B3 commented · Sep 11, 2017 at 01:16 AM

@Michael Machado

I don't know why but I'm having trouble opening your model. When I try to open it, FlexSim stops working.

Could you share the custom logic you created here?

Thanks for the support !!

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Michael Machado commented · Sep 11, 2017 at 01:31 AM

Sorry, attached is the model in the version 2017 Update 1. 8528-modelo-base-62bymm.fsm

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8528-modelo-base-62bymm.fsm (17.2 KiB)

Answer 3 · 2017-09-14T01:31:11Z

Vanessa B3 answered Sep 14, '17

@Michael Machado

Thanks for your help! I've tested the model but it seems the processor is pulling items according to the process time rather than the pull strategy itself.

Also, I'd like that the quantity of items pulled (and not the process time) followed a normal distribution.

Is there some way to do this?

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