{"id":165286,"date":"2023-03-17T08:59:54","date_gmt":"2023-03-17T08:59:54","guid":{"rendered":"\/knowledge\/forums\/topic\/can-i-apply-an-acceleration-or-gravity-in-an-axisymmetric-analysis\/"},"modified":"2023-07-31T12:30:58","modified_gmt":"2023-07-31T12:30:58","slug":"can-i-apply-an-acceleration-or-gravity-in-an-axisymmetric-analysis","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-apply-an-acceleration-or-gravity-in-an-axisymmetric-analysis\/","title":{"rendered":"Can I apply an acceleration (or gravity) in an axisymmetric analysis?"},"content":{"rendered":"<p>If the acceleration is in the Y-direction, then you can simply apply ACEL,,# in an axisymmetric analysis.  If the acceleration is in X or Z, you would need to use Plane25, the Axisymmetric-Harmonic 4-Node Structural Solid.  The ACEL command is used with the MODE command.  Verification Manual Problem #43 shows a similar problem.  Subject to the restrictions of Plane25, you can then superimpose these results onto your Plane42 model.  See the Plane25 Assumptions and Restrictions, specifically that: &#8220;The element assumes a linear elastic material. Post-analysis superposition of results is valid only with other linear elastic solutions. The element should not be used with the large deflection option.&#8221;<\/p>\n","protected":false},"template":"","class_list":["post-165286","topic","type-topic","status-publish","hentry","topic-tag-4685","topic-tag-general","topic-tag-mapdl","topic-tag-mechanical-apdl-f-ansys","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3\/15\/2023 20:20"],"_bbp_forum_id":["27789"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["2817"],"siebel_km_number":["372213"],"product_version":["9"],"km_published_date":["2005-01-27T00:00:00.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical APDL (f. ANSYS)"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165286\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=165286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}