{"id":52050,"date":"2021-02-09T03:57:04","date_gmt":"2021-02-09T03:57:04","guid":{"rendered":"\/forum\/forums\/topic\/setting-up-topology-optimization-problem-to-achieve-displacement-in-cylindrical-coordinate-system\/"},"modified":"2021-02-09T03:57:04","modified_gmt":"2021-02-09T03:57:04","slug":"setting-up-topology-optimization-problem-to-achieve-displacement-in-cylindrical-coordinate-system","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/setting-up-topology-optimization-problem-to-achieve-displacement-in-cylindrical-coordinate-system\/","title":{"rendered":"Setting up Topology Optimization problem to achieve displacement in cylindrical coordinate system"},"content":{"rendered":"
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Hi guys so I want your advice upon setting up topology optimization.<\/p>\n

Problem<\/strong>: set up TO in such a way that the output connects body 1 and body 3. i.e body 2 is my design inclusion region and 1 & 3 are my exclusion region. circular holes are fixed pins that hold the structure in place that i have modelled as fixed supports. 100Nm torque is applied through the big hole in the middle. All 3 bodies have shared topology and are of the same material.<\/p>\n

Desired solution<\/strong>: the connecting structure of body 2 will deflect by around 5 deg (0.00307 rad)<\/p>\n

My thought process:<\/strong> I think that i can measure this deflection by setting up a new cylindrical coordinate system at the circumferential face of body 1 and the axis that goes around y axis lets say.<\/p>\n

I will then measure this deflection by the rule THETA = L \/ R where R is the radius of body 1 from the centre point. and L will be the output direction deformation along the cylindrical axis (y axis)<\/p>\n

This then means i should set up a minimize compliance objective and set up a displacement constraint to get my 0.00307 rad deflection ( displacement i need = 0.00307 * R)<\/p>\n

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