Suggestions to model a factory

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Alonso Vargas

• November 03, 2023 13:12

Hello there,

I'm new to Goldsim and I need to do a dynamic simulation of a system with cranes that move boxes. I'm looking for suggestions, materials, or examples to help me get started because all I've found so far are examples related to water or water balances.

The problem involves a factory that creates boxes on different production lines. Once a box is completed, a crane needs to move it to a different location within the factory. I'm considering it as a series of discrete events, where each event is "the box is ready, it needs to be moved." To move a box, certain conditions must be met, such as the availability of a crane and ensuring the pathway is not blocked by another crane, etc. My goal is to determine the optimum number of cranes required to ensure a continuous movement of boxes.

I would be grateful if you could provide suggestions or examples to help me get started.

Thank you and have a good day!

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• Official comment

  

  Rick Kossik

  • November 03, 2023 15:32

  We have a few simple models that illustrate how something like this can be done (https://support.goldsim.com/hc/en-us/articles/115012987587-Moving-Discrete-Items), but GoldSim simply was not designed for these kinds of simulations.  GoldSim was designed to simulate continuous dynamics, not discrete dynamics.  It can simulate discrete events, but it was not really intended to do so - the discrete event capabilities were designed to be used in conjunction with continuous dynamics (to superimpose discrete changes on continuous systems).  There are many, many discrete event simulation tools that would better suited for such a task.

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  Alonso Vargas

  • November 21, 2023 12:08

  Thanks, Rick, for your answer; it has helped me a lot.

  However, I have been struggling with the definition of some characteristics of the objects in my model.

  I need some way to define characteristics that can change during the simulation, according to some other condition. For example, I need to define the color of an object, and I want to be able to redefine it with some function or inside a loop. What I am trying to do is the following:

  color_object1 = red

  if (some condition) = True,

         color_object1 = blue

   

  How can I assign these types of characteristics and be able to change them during a simulation?

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  Rick Kossik

  • November 22, 2023 15:56
  • Edited

  AS I pointed out previously, GoldSim was simply not designed to do things like this.  I could probably come up with a way to do this, but it would be very complex and difficult to program. There are specialized discrete event simulators that are specifically designed to do things like this.  Why are you trying to use GoldSim to do this?  It simply is not really the best tool for your kind of application.

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