Equations (Constraints) in the Optimizer Design

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laitriminh asked Dec 20, '23 laitriminh commented Dec 20, '23

Equations (Constraints) in the Optimizer Design

Hello, Flexsim community.

I have a Flexsim model, version 2019, attached below. I'm facing an issue in setting up Equations (Constraints) in the Optimizer Design section. I'm unsure how to set up the algorithm to find the optimal position while constraining the coordinates of the variables so they don't overlap in the 3D model (I tried rearranging the coordinates without constraints, and the positions overlapped as shown in the image). I would greatly appreciate any help or guidance from the community. Thank you very much.

Best regard,

laitriminh

Cải tiến.fsm

Software Version:

FlexSim 19.0.0

optimizer design equation contraint

capture.png (373.1 KiB)

cai-tien.fsm (417.6 KiB)

5 |100000

Attachments: Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.

Answer 1 · 2023-12-20T14:40:26Z

Felix Möhlmann answered Dec 20, '23 laitriminh commented Dec 20, '23

Combine multiple comparative statements with an OR operator in a single constraint. For example, the following constraints, makes sure that the two queues to not overlap in the x-direction.

([Q7 x] < [Q8 x] - 2) OR ([Q8 x] < [Q7 x] - 2)

By adding additional terms for the y-direction, you can relax the constraint, by allowing an overlap along the x-axis, as long as the queues do not also overlap along the y-axis.

The results screen nicely shows a corridor in the middle, in which the queues would have overlapped.

1703083159674.png (44.4 KiB)

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laitriminh commented · Dec 20, 2023 at 02:42 PM

Thank you so much, Felix.

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