GRAV card in Topology Optimization
Guys, quick question: can we use GRAV card with topology optimization or the applied load for topology optimization should be design variable independent? My required applied load is 50G. Thank you!
Best Answer
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yes, it's supported.
Some statements I found from help:
For mass penalization information when GRAV is used in a Topology optimization, refer to Design Variables in the User Guide.
The polynomial penalization is active by default whenever mass influences the loading, for instance for normal modes, frequency response, gravity loading (GRAV) or rotational forces (RFORCE).
Please check this link: https://help.altair.com/hwsolvers/os/topics/solvers/os/topology_opt_design_variables_r.htm
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Altair EmployeeAnswers
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I believe you can, but the question if it is convenient (computationally and optimization-problem-wise) is a differnent one. (and more complex, I guess)
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yes, it's supported.
Some statements I found from help:
For mass penalization information when GRAV is used in a Topology optimization, refer to Design Variables in the User Guide.
The polynomial penalization is active by default whenever mass influences the loading, for instance for normal modes, frequency response, gravity loading (GRAV) or rotational forces (RFORCE).
Please check this link: https://help.altair.com/hwsolvers/os/topics/solvers/os/topology_opt_design_variables_r.htm
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Xiaolei Song_21874 said:
yes, it's supported.
Some statements I found from help:
For mass penalization information when GRAV is used in a Topology optimization, refer to Design Variables in the User Guide.
The polynomial penalization is active by default whenever mass influences the loading, for instance for normal modes, frequency response, gravity loading (GRAV) or rotational forces (RFORCE).
Please check this link: https://help.altair.com/hwsolvers/os/topics/solvers/os/topology_opt_design_variables_r.htm
Thank you! I will try to find example. During optimization with GRAV card the load value will change/reduce. So it is not usual topology optimization, where we apply loads and constraints on non-design parts.
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