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Monte Carlo Simulation Software

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  • #53669

    Koganti
    Member

    We are looking to buy a Simulation Software for lean process (Specifically for throughput). What is the best simulation software and easy to use. I come across Pro Model, Arena and Simul 8, however, I want to know your experience and opinion.

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    #191046

    MBBinWI
    Participant

    Arena is going to cost you big bucks (not sure about the other 2).

    Have you looked at iGrafx Process? It might also suit your needs.

    In any case, you’re going to need to develop the process model and understand the interactions very well. If you really know this, you can do the modelling in Excel and use CrystalBall for the MonteCarlo part. Not as slick graphically as the others, but often adequate, and much cheaper. IMHO

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    #191049

    Koganti
    Member

    Do you have any process flow example to pass on (using Excel for Monte Carlo). YOur help is really appreciated

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    #191102

    Eric Maass
    Participant

    Hi rkoganti,

    Some or all of the simulation software programs you mentioned are for Discrete Event Simulation, which is a bit different from Monte Carlo Simulation.

    In Discrete Event Simulation (D.E.S.), you model the process as individual steps linked together, set up a statistical distribution for the arrival rate (how often new material enters the process flow) and statistical distributions for each of the steps in the process. If you enter a capacity limit on a piece of equipment, then the simulation will show material stacking up as WIP before that equipment. You can also model the equipment occasionally going down, either intentionally (scheduled equipment maintenance) or unintentionally (equipment failure, time to repair)

    Of the software packages you mentioned, I’ve heard favorable things about Simul8 in terms of both its capabilities and its cost. Here is a website with some information on some of these D.E.S. programs:
    http://www.idsia.ch/~andrea/sim/simvis.html

    in Monte Carlo Simulation, you set up an equation or series of equations intended to represent the process or situation you would like to model, and you set up statistical distributions for some or all of the inputs into the equation(s). Monte Carlo simulation is more general purpose that D.E.S., but isn’t as easily applied for situations like a process with one or more equipment constraints.

    Happy New Year!

    Best regards,
    Eric Maass

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    #191103

    Koganti
    Member

    Thank you Eric for your detailed note. Now I understand the differences bet DES and Monte Carlo Simulaiton.

    Regards
    Rama Koganti
    Program Manager
    US Army
    White Sands Missile Range
    Tel # 575-678-6442

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    #193710

    Bob Masey
    Participant

    Hi everyone,

    I stumbled across this Monte Carlo addin for Excel which is completely free and it is a perfect complement to Minitab.

    http://www.topshareware.com/Six-Sigma-Toolbox-download-91533.htm

    Regards,
    Bob Masey

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