How can I setting for output number of Stacker crane?

Question

question

Jungeun W asked Oct 26 2022 at 5:32 AM Jeanette F commented Nov 04 2022 at 5:02 AM

How can I setting for output number of Stacker crane?

Hi!

I want to let Stacker Crane to pickup fixed amount of flowitem hourly.

There has 2 types of flowitem, type 1 and type 2.

15 pallets of type1 item and 3 pallets of type2 item picked up from 4 racks(2racks connected by one Stacker crane) every hour.

How can i handle the amount of output of task executers(same output schedule for every hour)?

taskexecuter_outputno.fsm

Software Version:

FlexSim 21.1.5

flowitem output outputtrigger taskexecuters

taskexecuter-outputno.fsm (85.9 KiB)

· 3

Joerg Vogel commented · Oct 31 2022 at 5:37 AM

Actual you can not do this. A crane like any other Taskexecuter only supports processes and is not a source of an output. His throughput is defined by motion parameters like speed, distance, acceleration and his availability in processes. If you feed randomly a crane to do transports mainly at the end of an hour time slot, he won’t be able to do them in this slot. Your model logic must organize his utilization in a manner that he can achieve your goal. If you can not estimate on logical conditions which transport job must have priority over another, then you can only use a model to find an empirical solution for your problem by variation of transport or material processing orders. But this is exactly the purpose of a model in FlexSim. It tests on variable conditions the output and utilization of resources. Maybe you need to freeze your model every hour input conditions and run it based on this conditions several times until you find an optimum for the next statistical hour. It depends on intervals of certainty, when you are sure of random events.

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Jason Lightfoot ♦♦ Joerg Vogel commented · Oct 31 2022 at 1:12 PM

Jorg I think it's just a matter of running to a pick schedule from the racks.

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Jeanette F ♦♦ commented · Nov 04 2022 at 5:02 AM

Hi @Jungeun W, was Jason Lightfoot's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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Answer 1 · 2022-10-26T10:45:32Z

Jason Lightfoot answered Oct 26 2022 at 10:45 AM Jeanette F commented Oct 29 2022 at 9:22 PM

In a process flow add a source activity with your schedule and have the generated tokens find the items to release.

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