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Li ze avatar image
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Li ze asked Jeanette F commented

Operators out of sync

I encountered a problem When I was learning the Tutorial Task 2.2 - Create Coordinated Loading Tasks (flexsim.com)

https://docs.flexsim.com/en/22.1/Tutorials/TaskLogic/Tutorial2CoordinatedTasks/2-2CoordinatedTasks/2-2CoordinatedTasks.html

From the third task, the two operators began to be out of sync.

录制-2022-06-07-14-35-07-780.gif

2.2 - Create Coordinated Loading Tasks_Flexsim22.1.2.fsm

Someone suggested me to modify the offset of the operators but it didn't work.

微信截图-20220607144617.png



FlexSim 22.1.2
coordinated loading tasks
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Jeanette F avatar image Jeanette F ♦♦ commented ·

Hi @Li ze, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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1 Answer

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Felix Möhlmann avatar image
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Felix Möhlmann answered

The travel task has a default end speed equal to the operator's max speed. This means, if a travel activity is followed by another one without delay, the next travel task will have the operator start to travel at maximum speed immediately.

The 'main' operator's speed is always set back to 0 due to the load/unload task. However, if the 'assisting' operator arrives second, it will immediately resume it's travel to the next destination (if there is a task pending). So while the main operator has to accelerate, the assisting one sometimes starts at max speed and thus a gap is created.

To fix this (though both operators clipping into each other isn't necessarily more realistic/correct), you can add a small delay time after the travel tasks of the assisting operator to reset it's speed.

22-create-coordinated-loading-tasks-flexsim2212_1.fsm

Note: The delay time in the attached model shows as '0'. This is due to the default decimal precision being 2. The actual value entered is 0.0001.


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