topic Re: Source Timing in FlexSim Forum

Source Timing

noah_k — Wed, 30 Jan 2019 15:43:27 GMT

[ FlexSim 19.0.0 ]

Hi,

I want to create a source that produces 40 boxes per minute, but the boxes are randomly spaced within that timeframe.

Can anyone help? Thanks!

Re: Source Timing

joerg_vogel_HsH — Wed, 30 Jan 2019 16:33:26 GMT

There is certainly a better approach than this:

You collect 40 different random values. You normalize these values, that the sum of them gets 1. You multiply each value with 2/3 seconds. You set the delay time of the Process Flow to create a new item to the next value of your collection. If the 40th item is released you start to create a new collection of 40 values.

You can use this approach in 3D source, too. You build OnReset the first set of 40 values and add the first value to a label at the source. This label value is the Inter-Arrivaltime. The OnCreation trigger changes the label value.

This model (Version 18 .2.2) uses a static label array in the 3D Source triggers. interarrivaltime-by-static-array-values.fsm

Re: Source Timing

Ben_WilsonADSK — Wed, 30 Jan 2019 19:42:52 GMT

Hi @Noah K,

In the 3D, I would use a source to create all 40 items at once, each minute. These 40 items immediately go to a 40 capacity processor that assigns a random process time 0-60 seconds. The source+processor together accomplish your goal.

A similar concept can be built in process flow.

Here is a sample model implementing both the 3D and ProcessFlow approaches:

itemsperminutesource.fsm

Re: Source Timing

Ben_WilsonADSK — Mon, 04 Feb 2019 19:56:24 GMT

Hi @Noah K,

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