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Batching and Sequence Optimisation

Hi all,

 

I have an issue wherein i have to come up with an optimised schedule for various products(in this case product A,B and C). The layout is as shown below,

 

LayoutLayout

The only input i have as of now is the total demand for products A,B and C and the cycle times of "Machine_A","Machine_B" and "Machine_C" which are all same.

 

Please let me know if anyone has any idea regarding this.

 

Many thanks in advance,

-Varun

6 REPLIES

Re: Batching and Sequence Optimisation

what figure do you need to optimize ?
e.g. many sequence optimizations are dealing with setup costs/times and search for minimum setup costs for a given output

Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net


Re: Batching and Sequence Optimisation

Hi Steffen,

 

I want to maximise the throughput for all the three parts combined. In this particular scenario all the machines have same processing time and have no setup time.

 

Regards,

-Varun

Re: Batching and Sequence Optimisation

just for my understanding: what is the exit strategy of A (and why)? And where do you have some variable elements in the model?


Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net


Re: Batching and Sequence Optimisation

Hi Steffen,

 

As of now i do not have any rule set for any of the sources i.e., the parts from any source can be fed into the machine

Solution
Solution
Accepted by topic author Varun_B
‎02-13-2017 09:28 AM

Re: Batching and Sequence Optimisation

[ Edited ]

if you have no "variable" inputs you can proceed as follows:
set all sources to interval=0, set an end in the event controller -->
your model will deliver the maximum output
(this you can also very easy validate in excel, just calculate simulationtime/procTime)

 

if you want to do batch or sequence optimization, you should use only one source (with delivery table or sequence cyclical). There should be some bottleneck (togheter for for all parts) and some diffences (e.g. output, costs) if you change something in the sequence of the source (e.g. setup times).

 

 


Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net


Re: Batching and Sequence Optimisation

Hi Steffen,

 

Thanks

 

Regards,

-Varun