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[pclech]

Hello.

In the case of a topology optimization study, with four loads according to the diagram below,

[Hui Liu]

Is your model symmetric? meaning mesh, boundary conditions and loading.n

[pclech]

Hello Huiliu.n1°/ Concerning the mesh, here are the settings I have chosen:n_ General setting:n_ Method:n2°/Concerning the boundary condition and loading, here the definition apply:n_ the fixing hole being the fixed point (Valid for all 4 loads):n_ An inner side of the hanging ring. One side per direction and per load value:nLoad according to F3= 500NnLoad according to -F2 = 6000NnnLoad according to F2 = 6000NnnLoad according to F1= 1000Nnn3°/And concerning the topology optimization, here the definition apply:n_ Analysis settings : default valuesn_ Optimization region:nn_ Objective: Compliancen_ Response constraint: Massn_ Manufacture constraint: Member sizen_ Manufacture constraint: Pull Out DirectionnnIs that you see in these settings an explanation for the imbalance in the result of the topology optimization. nThanks in advance for your help.nBest regards?nPhilippe.n

[peteroznewman]

nIf you want a Symmetric geometry result, insert a Symmetry Manufacturing Constraint, or just optimize a half model with symmetry boundary conditions.n

[pclech]

Hello Petreoznewman.nWhen you say  insert a Symmetry Manufacturing Constraint, in my simulation, I have set up a manufacturing constraint according to the part's parting line with a Pull Out Direction like this:nnCould my problem come from the F3 effort which is not symmetrical (just oriented in one direction)?.

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