Nested Item Lists

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chao.g asked Oct 20, '16 Sam Stubbs answered Oct 20, '16

Nested Item Lists

I have 4 racks, each rack has a capacity of 28 and can randomly store item type from 1 to 3. in Front of each rack, there is an elevator that's going to pick the item and hand that off to one of the 2 AGV shuttles that first becomes available and then AGV shuttle is going to take the item to downstream queue.

When an order comes in, say item type 3, it's going to grab the first available AGV, that AGV is going to look at the rack that's closest to AGV's current location and has type 3 item in store, then it's going to travel there and handshake with the elevator to get item to the shuttle. When the elevator is picking from the rack, in case there are multiple item 3 type racks, it will also pick the one where it travels least amount of distance. So essentially, I am using AGV shuttle as the puller to pull from elevator list that's sorted by distance in terms of AGV, and then elevator to pull the item that's also sorted by distance in terms of elevator, is there any sample/simple models that can do this?

Please suggest,

Thanks!

Software Version:

FlexSim 16.2.1

lists

capture.png (195.6 KiB)

Answer 1 · 2016-10-20T21:46:20Z

Sam Stubbs answered Oct 20, '16

Hi Chao, I think I've discovered a way to achieve what we had discussed. I'm attaching a model for you to look at. This is an example model where the Task Executer will grab 1 of each item types from 1 to 3 in that order and repeat. It uses a list of racks with a list of items to pull these items load them on an elevator and then have the elevator load them onto the task executer. The list will also pull them by the shortest distance to the Task Executer.

The model is attached below:

elevatorlistpull.fsm

elevatorlistpull.fsm (30.0 KiB)

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