1]How muli model topology optimization(MMTO) is different from conventional topology optimization (which algorithm used and time saved) 2]How is it different from multi disciplinary optimization(MDO)

prasad jadhav
prasad jadhav Altair Community Member
edited September 2023 in Community Q&A

1]How muli model topology optimization(MMTO) is different from conventional topology optimization (which algorithm used and time saved)

                         Is solving algorithm different ? How much time /cost can be saved ?can different design objective is used in 2 models?

2]How is it different from multi disciplinary optimization(MDO)

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Answers

  • Robert Hoglund
    Robert Hoglund
    Altair Employee
    edited September 2023

    Hi Prasad,

    All of the optimization techniques in OptiStruct fall under the broad category of multidisciplinary design optimization (MDO).

    Multi-model optimization (MMO) allows you to optimize multiple different models in the same run (different subcases, modules, etc.) but with a linked common design space.

    You can have a different or same objective function in different models.

    It uses similar optimization methods to a regular optimization, except different objectives are taken into account using a MAXMIN/MINMAX formulation for the objectives, essentially "maximizing the minimum" of a set of objective functions, or "minimizing the maximum" of a set of objective functions.

    More information about running MMO is here:

    https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/multi_model_optimization_intro_r.htm#multi_model_optimization_intro_r

    Thanks,

    Rob H.

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