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Working on assembly line with shifting process time and number of opperations

Hi Sim Friends

 

I am trying to create a model of an assembly line.

 

The line must handle different product types; meaning that the number of operations and the time of these operations will vary. The combination of these variations are approx. 100-200 different products.

 

Flow on the line in the real world:

  1. The worker will follow the product and do X number of operations.
  2. When the product are done, the worker will walk to the start of the track (to start on a new product) and the product will continue some time on the line for the packing area.

My customer have asked for a good visual of the model, however I know that this can be difficult.

 

My current problems are:

  • How to handle the variation of operations?
  • How to get a worker to go/beam back to the workerPool, when on the middle of a foothPath? (To start on a new product).
  • How to make sure that the number of workers and the number of products on the line are in balance?
  • How to handle statistics?

 

Any ideas for the points above are a great help.

 

An idea of my own are.

Create enough singleproc's to handle the variation of process numbers. Add a workplace for each singleproc. This might handle the statistics and worker problem.

Parallel to the singleproc's create a track and a footPath where a clone MU and a worker will work along each other. This could handle the visual of the task.

 

Best.

 

 

4 REPLIES 4

Re: Working on assembly line with shifting process time and number of opperations

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

I guess until now (V. 14.1) it is not possible with the worker. 

You can use the transporter to model this tasks. 

See here an example:

 

http://www.bangsow.eu/detail_en.php?id=791

 

The transporter creates its track dynamically. The track consists on three segments:

- the way to the part on the conveyour (worker walking speed)

- the processing of the part (conveyor speed)

- way back to the start of the conveyor (worker walking speed)

 

I use a deprecated (still available and hopefully also in the future available) method of the track to create the track dynamically (segmentsTable). For statistics you can use:
worker.statStoreTimePortion (for waiting)
worker.statTransportTimePortion (for working and walking)

 

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

Re: Working on assembly line with shifting process time and number of opperations

Hi Steffen

 

I have never tried the funcionality you speak of, but looks interesting. Thanks! I will test the solution.

 

I do not yet have updated for V14, so if you by chance have it in V13 it would be nice.

Re: Working on assembly line with shifting process time and number of opperations

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

here it is

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

Re: Working on assembly line with shifting process time and number of opperations

Just looked at it, That is smart!