{"id":403301,"date":"2025-01-02T14:46:22","date_gmt":"2025-01-02T14:46:22","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/403301\/"},"modified":"2025-01-02T14:46:22","modified_gmt":"2025-01-02T14:46:22","slug":"403301","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/403301\/","title":{"rendered":"Reply To: Enlarged deformation coupled field transient analysis."},"content":{"rendered":"<p>&lt;p&gt;Hello Mohan,&lt;\/p&gt;&lt;p&gt;I am trying to simulate a brake system using coupled field transient analysis.&lt;\/p&gt;&lt;p&gt;As you mentioned I am posting the snapshots of the contact formulations, loads and boundary conditions.&lt;\/p&gt;&lt;p&gt;Frictional contact1-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828073-cf1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;Frictional contact2-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828119-cf2.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;The contact settings shown below is same for above 2 frictional contacts-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828231-cdef1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;Contact status is closed for both the frictional contacts.&lt;\/p&gt;&lt;p&gt;Next, I have defined the revolute joints of type body-ground. The Mobile body has rigid behaviour.&lt;\/p&gt;&lt;p&gt;Revolute joint1. This is for applying the rotational velocity.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828371-rj1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;Revolute joint2. This is for giving the moment load for the brakeshoe pivot.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828436-rj2.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;Similarly, revolute joint3,&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828468-rj3.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;The physics regions, loads are defined as follows,&lt;\/p&gt;&lt;p&gt;1) Physics region1-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828622-pr1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;For the above physics region, the thermal strain is considered weak.&lt;\/p&gt;&lt;p&gt;2) Physics region2-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828689-pr2.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;3) Rotational velocity as joint load-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828732-rv1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;4) Joint moment1-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828769-jm1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;5) Joint moment2-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828809-jm2.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;6) Convection load on drum-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828887-cd1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;7) Convection pads-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828912-cp1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;8) Heat flux drum-&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735828947-hf1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;The above mentioned loads are considered for the simulation. Also the analysis settings is shown below,&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/02-01-2025-1735829040-as1.jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;I would like to know as to why the drum is expanding? Is it due to the rotational inertia beacause of the rotational velocity?&lt;\/p&gt;&lt;p&gt;Looking forward to your reply.&lt;\/p&gt;&lt;p&gt;Regards,&lt;\/p&gt;&lt;p&gt;Rohan.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-403301","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello Mohan,I am trying to simulate a brake system using coupled field transient analysis.As you mentioned I am posting the snapshots of the contact formulations, loads and boundary conditions.Frictional contact1-Frictional contact2-The contact settings shown below is same for above 2 frictional contacts-Contact status is closed for both the frictional contacts.Next, I have defined the revolute\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" 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