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

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)

RobHoglund

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.