Uncertainties in the results of an ASRS model.

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Pradeep Arul Pragash asked Aug 22, '22 Pradeep Arul Pragash commented Aug 23, '22

Uncertainties in the results of an ASRS model.

Hi

I have created an ASRS model to simulate the various storage and retrieval procedures.

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Uploaded T-2.fsm and summaryreport.csv to flex sim file share site

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Source output: 1500 boxes

Rack 1 in&ouput: 1500 boxes

Rack 2 in&output : 276 boxes

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1) I am trying to understand why most of the boxes are being stored in Rack 1..... (1500 boxes of Rack 1 vs 276 boxes of Rack 2)

2) Is the ASRS shuffling the boxes? If so, how to stop the shuffling?

3) When the number of boxes coming out from the source is only 1500... Why have 1500+276 boxes gone into the racks? (Again I believe it is due to shuffling)

OUTPUT:

Object	Class	stats_content	stats_contentmin	stats_contentmax	stats_contentavg	stats_input	stats_output	stats_staytimemin	stats_staytimemax	stats_staytimeavg	state_current
Source1	Source	0	0	0	0	0	1500	0	2777.985584	86.897909	4
Queue1	Queue	0	0	1	0.854486	1500	1500	9.810992	2786.493826	92.249597	6
Queue2	Queue	0	0	1	0.555766	1500	1500	60	60	60	6
Rack1	Rack	0	0	150	92.246827	1500	1500	32.354906	15424.43474	9958.891882	1
Rack2	Rack	0	0	150	133.524783	276	276	78.126423	140176.6971	78343.62109	1
ASRSvehicle1	ASRSvehicle	0	0	1	0.358529	3276	3276	10.087168	24.908279	17.722767	1
Sink1	Sink	1	0	1	0.999071	1500	0	0	0	0	7

Software Version:

FlexSim 22.2.0

racks asrs performance analysis

Answer 1 · 2022-08-22T23:43:38Z

Jeanette F answered Aug 22, '22 Pradeep Arul Pragash commented Aug 23, '22

Hello @Pradeep Arul Pragash,

On Rack 1 you have Rack 2 connected via an output port.

So When the Queue2 is not available then the items are sent to rack 2.

Also your Queue1 uses the logic of "First Available" which means as long as Rack 1 has space then the flow items will go there. There are several other available options if you select the dropdown arrow next to the field.

1661211687857.png (5.6 KiB)

1661211775585.png (4.1 KiB)

· 1

Pradeep Arul Pragash commented · Aug 23, 2022 at 12:29 PM

Thank you very much.

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