{"id":370240,"date":"2024-07-03T05:12:34","date_gmt":"2024-07-03T05:12:34","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/struggling-to-constrain-model\/"},"modified":"2024-07-03T05:12:34","modified_gmt":"2024-07-03T05:12:34","slug":"struggling-to-constrain-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/struggling-to-constrain-model\/","title":{"rendered":"Struggling to constrain model"},"content":{"rendered":"
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Im<\/span> conducting static structural simulations for a wheel hub and I’m having issues <\/span>contraining<\/span> the model so <\/span>i<\/span> get correct reaction forces at my supports and contacts and also stopping rigid body motion. The rigid body issues were for Ry of the hub and y translation of the hub in the positive y direction. Below is a screenshot of one of the two different models I’ve been experimenting with which has a remote force at the contact patch to the wheel <\/span>centre<\/span>, fixed supports on the bearings and the remote displacement which is free in all directions except Ry and Y. This model works well in all cases except when there is a positive y component to the remote force.<\/span><\/span> <\/span><\/p>\n<\/div>\n

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Below is my other model where an extra geometry is added which is a retaining plate that is in the real life model. This has the same similar issues and it produces really bad reaction forces. A screenshot below shows the reaction force of a frictionless contact reacting 120N inn the direction the contact wants to slide which really confuses me and I’m not sure how that can occur. <\/span><\/span> <\/span><\/p>\n<\/div>\n

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Overall I’m after some guidance of where I’m potentially going wrong, is there are better way and what is the trouble shooting process for this. If more context is required I <\/span>cant<\/span> give it as substantial amounts as lots has been left out to keep the post short as many things have already been tried.<\/span><\/span> (Apologises if posted twice i dont believe my first one worked)<\/span><\/p>\n<\/div>\n","protected":false},"template":"","class_list":["post-370240","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t