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Showing results for 'continuous system'.
Found 8 results
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I have recreated a system to see theoretical capacities and it has multiple sources (1 parent and 2 different members that I combine). I have turned off balking because that interferes with my unit mix. I have also changed all buffers to a finite number and crossing logic capacities to 1. Even with all of this, I still hit the 2500 max entities and an error pops up. This system should only be able to hold a couple hundred, so I know I don't need to adjust my capacity size. I made the units stop at the 1st server so I could isolate the issue and it appears to be upon creation or in the combiner. My question is, how can I have unit production pause (not stop) when the buffers and capacities are full? I have attached the file for reference. APS Design 2.spfx -
Hello, I have a network that it has several sources and sinks. I set the following properties for each path: 1) Initial Traveler Capacity: 770000 2) Drown to scale: False 3) Logical Length: 150 Miles 4) Allow Passing: False 5) Speed Limit: 90 Miles per Hour. By putting these properties on the link, congestion is occurred in the system. When I run the model that entities randomly choose path and sink, TimeInSystem get different values for minimum, maximum and average in result part. However, when I put sequence for all paths and source, TimeInSystem get the same values for minimum, maximum and average in result part while we have congestion in the network. Can you tell me why the TimeInSystem does not change? Thanks, Nadere
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Hello, I have a network with one source and different sinks. I use add on process on the output of my source to choose the sinks based in the capacity. When I run the model, all created entities destroyed in the sinks correctly but in result part, "TimeInSystem" is equal zero. Due to add on process, is it happen?Should I calculate time in system with Tally? Best, Nadere
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How can I schedule a randomly distributed death event for each entity, and pull them out of the system (or perhaps route to a "mortality" sink) if it occurs before they have already left? Somewhat similar to reneging, but I need mortality to be possible during a service, not only in queues. If an entity is removed from service, I also need the seized resources to be released. What I have tried so far: When an entity is created, I provide them with a state variable for TimeTillDeath, lets say exponential(2) hours. This is a real number, not a datetime. As they enter each queue, I set the reneg trigger as ModelEntity.TimeTillDeath subtract any elapsed time since creation, min 0. This works to model mortality while they are waiting for service, but not during a service. Any help is appreciated, KO -
Is it possible to release a resource after a model entity departs the system? I am trying to model a case when an exam room in a hospital is cleaned after a patient leaves the system. The exam room should not be made available to other patients prior to cleaning. It seems the default is to release all associated resources when an entity departs the system. Thanks in advance!
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Hello all, How can I make several stations seize the resource which is currently on shift. Let's say server one needs a resource to process a unit (not for the whole processing time but a fraction of it), to model this process I use the seize, delay and release steps in the process window. If I have 3 shifts of operators how can I make my server seize the one on shift. Given that they have breaks, How can this behavior be incorporated. I tried using the decide step, using the resource state and the capacity allocated, but it did not work. Thank you for your suggestions.
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Hello, I've been doing simulation models in ape lately I've been working with the Flow Library, I doubt if Simio is possible to make the modeling of a continuous system. tools provided by the software in the Library FLow allow discretize a continuous system to model it, but for example it is possible to model the behavior of an entity within a Tank through differential equations? For example you can add to our model the behavior of an element within a tank through equations that define the behavior of a (liquid, solid, gas) within the model element. I think they are highly complex simulations, simulators based on old programming languages one could get to do. Simio is possible to define this behavior in any way?. Regards Cristian.
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To see the software and hardware required for Simio, view the document here: Simio System Requirements Miscellaneous Notes Apple products like Mac work when running Windows. Many customers have had good results using Parallels or similar products. Simio does work on a Surface Pro as long as the OS is standard Windows 8 not Windows 8 RT. Simio does offer touch screen support.
