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Q&A Using Flexsim and building models

  #1  
Old 12-24-2010
Robert Liu Robert Liu is offline
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Default question about queue

In my model, there are three types items, my question is how can I put the three type items in queue by rule such like: in first layer, three reds\three blues\three yellows; the second layer, three blues\three yellows\ three reds; the third layer, three yellows\ three reds \three blues;……another words, the same type items are put together in given order in every layer. But now, the items in queue are shown stochastically.
Who can help me? Thanks a lot!
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File Type: zip queue1.zip (32.6 KB, 148 views)
  #2  
Old 12-25-2010
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Default Re: question about queue

Just out of curiosity: Is there a specific reason you need to have only one queue?

Thanks in advance,
  #3  
Old 12-26-2010
Robert Liu Robert Liu is offline
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Default

Goksin, Thanks for your suggestion, maybe more queues is a good idea.
en, one or two queues is not the key, I only want to know how to set the items inside the queue following given order but not stochastically. For example, 20 items, shown as 4 rows\5 columns inside a queue. Easy or not easy?
  #4  
Old 12-27-2010
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Sebastian Hemmann Sebastian Hemmann is offline
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I´m not sure, if I understood your question wright. But I think, using a rack instead of queue could help you.
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  #5  
Old 12-27-2010
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my question is list in attached files, the"queue in rule" is I want,but in Flexsim "queue in stochastic" is the default.
I think this is a easy question but I can't find how to realize "queue in rule".
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File Type: zip queue.zip (99.3 KB, 137 views)
  #6  
Old 12-27-2010
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Sebastian Hemmann Sebastian Hemmann is offline
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So take a rack with only one level and as many bays as itemtypes / colours you have.
On the "Rack" Tab you can choose "By Expression" in the picklist of "Place in Bay" options and getitemtype for choosing the bays.
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  #7  
Old 12-27-2010
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But for your original question, I believe it´s not easy to do this with a Queue.
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  #8  
Old 12-27-2010
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Sebastian, Thanks a lot.
Maybe rack is the only way to realize the storage by given rule, I'm doubt queue not has this function. Is this the common problem of 3D simulation?
  #9  
Old 12-28-2010
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Robert,

What you want is very specific, tomorrow somebody might come that wants the first product upside down and the second not and every 6th should be 2 cm higher.

As you see you can think out every possible combination of storing products. And ofcourse these can not all be foreseen and programmed. So Flexsim gives you a simple queue with some basic rules (stack inside, stack vertically etc) and it gives you triggers to create all the complex logic you would like. I propose you take a look a the following post :http://www.flexsim.com/community/for...?t=1583&page=2

Here they also wanted to create a certain logic inside a queue. Please read this post and see if it will help you.
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  #10  
Old 12-28-2010
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Steven, thanks a lot for your help!


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