topic Re: How can I specify random values as delaytime for waypoints? in FlexSim Forum

How can I specify random values as delaytime for waypoints?

christiane_rs — Mon, 17 Jan 2022 08:32:21 GMT

[ FlexSim 18.1.2 ]

I have created a simulation in which the onward journey of the AGVs is delayed at the waypoints. Two types of waypoints are to be distinguished. With one group (Montage) there is a fixed delay. In the other (verzögerte Montage), the delaytime should vary randomly in a certain area. I tried to do this with a normal function (normal(5.3,0,2)). However, the result is the same as without the function, as if I had entered a fixed value. Also, the use of the Bernoulli function (bernoulli(33,5.5,5) has always brought the same result, regardless of the given probabilitywithDelay.fsm.

How can I specify variable random values in a certain range as a delay?

Re: How can I specify random values as delaytime for waypoints?

jason_lightfoot_adsk — Mon, 17 Jan 2022 09:28:24 GMT

Try 'normal' with one 'l' - recognized keywords should be shown in blue.

Re: How can I specify random values as delaytime for waypoints?

christiane_rs — Mon, 17 Jan 2022 09:54:03 GMT

Sorry, I had just changed it for the screenshot and mistyped. But as you can see from the pictures, it doesn't make a difference even spelled correctly

Re: How can I specify random values as delaytime for waypoints?

christiane_rs — Mon, 17 Jan 2022 10:14:23 GMT

Do you have any other suggestions? As you can see from my comment, time does not change even with correct keywords.

Re: How can I specify random values as delaytime for waypoints?

moehlmann_fe — Mon, 17 Jan 2022 11:11:23 GMT

I can't seem to replicate the issue. Different distribution produce varying results, all longer than a fixed waiting time (because longer waiting times propagate down the chain of agvs due to control point allocation).

This might sound obvious, but did you remember to hit "Apply" between changing the delay time and running the model again? I definitely sometimes forget to do that.

Re: How can I specify random values as delaytime for waypoints?

joerg_vogel_HsH — Mon, 17 Jan 2022 12:16:30 GMT

Probably you have still activated repeat random streams. Turn it off.

https://docs.flexsim.com/en/22.0/BestPractices/ModelRepeatability/#repeat

Re: How can I specify random values as delaytime for waypoints?

ryan_c10 — Thu, 20 Jan 2022 17:30:35 GMT

Hi @Christiane Rs, was one of Joerg Vogel's or Felix Möhlmann's or Jason Lightfoot's answers helpful? If so, please click the "Accept" button at the bottom of the one that best answers your question. Or if you still have questions, add a comment and we'll continue the conversation.

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