{"id":207984,"date":"2022-03-11T09:11:59","date_gmt":"2022-03-11T09:11:59","guid":{"rendered":"\/forum\/forums\/reply\/207984\/"},"modified":"2022-03-11T09:21:30","modified_gmt":"2022-03-11T09:21:30","slug":"207984","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/","title":{"rendered":"Reply To: Static equilibrium of rigid body system."},"content":{"rendered":"<p>Thanks @<a href=\"\/forum\/profile\/peteroznewman\" target=\"blank\">peteroznewman<\/a> for your answer! Here I apply the photo of the system I want to model. Briefly, there&#8217;re 3 rods (on the right side of the picture) that have a spherical joint  with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that&#8217;s what I meant when I wrote about springs) . I actually haven&#8217;t quite understand your note about 6 springs. Could you please explain it more? Is the structure on the picture appropriate for Static Structural?<br \/>\nThere is also a problem here with the spherical joints. I read about this type of joint and how the friction moment is calculated based on radius, friction coefficient and surfaces of the joint. I didn&#8217;t understand is it valid to define the joint between the ground and the top face of the cylinder as is shown on the 2nd picture (and also if I want to create a joint between 2 consecutive rods, I would need to define a joint between the bottom of one cylinder and the top of another). The problem here is that here the center of the joint is located in the center of the face and the radius of the joint is 0, so, as I understand, the moment would be 0. All I want is just to make some kind of connection between rods that would produce a counteracting moment that is proportional to change of angles in this joint. (like in a revolute joint, where we have M = c*phi, but here in spherical joint we have 2 angles, as I don&#8217;t want to account intrinsic rotation of cylinder around its axis). Maybe I just need some other type of joint for this purpose?<br \/>\nThank you in advance!<\/p>\n","protected":false},"template":"","class_list":["post-207984","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=\"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there&#039;re 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that&#039;s what I meant when I\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there&#039;re 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that&#039;s what I meant when I\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-03-11T09:11:59+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-03-11T09:21:30+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there&#039;re 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that&#039;s what I meant when I\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/#listItem\",\"name\":\"Reply To: Static equilibrium of rigid body system.\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Static equilibrium of rigid body system.\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/\",\"name\":\"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum\",\"description\":\"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there're 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that's what I meant when I\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/207984\\\/#breadcrumblist\"},\"datePublished\":\"2022-03-11T09:11:59+00:00\",\"dateModified\":\"2022-03-11T09:21:30+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum","description":"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there're 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that's what I meant when I","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/#listItem","name":"Reply To: Static equilibrium of rigid body system."}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/#listItem","position":2,"name":"Reply To: Static equilibrium of rigid body system.","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/","name":"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum","description":"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there're 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that's what I meant when I","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/#breadcrumblist"},"datePublished":"2022-03-11T09:11:59+00:00","dateModified":"2022-03-11T09:21:30+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum","og:description":"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there're 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that's what I meant when I","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/","article:published_time":"2022-03-11T09:11:59+00:00","article:modified_time":"2022-03-11T09:21:30+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Static equilibrium of rigid body system. | Ansys Learning Forum","twitter:description":"Thanks @peteroznewman for your answer! Here I apply the photo of the system I want to model. Briefly, there're 3 rods (on the right side of the picture) that have a spherical joint with the ground. All the other joints between rods should be also spherical with non-zero stiffnesses (that's what I meant when I"},"aioseo_meta_data":{"post_id":"207984","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-26 14:58:13","updated":"2024-10-28 19:27:42","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tReply To: Static equilibrium of rigid body system.\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Static equilibrium of rigid body system.","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/207984\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/207984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/207984\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=207984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}