{"id":158158,"date":"2022-06-06T09:58:54","date_gmt":"2022-06-06T09:58:54","guid":{"rendered":"\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/"},"modified":"2022-06-06T09:58:54","modified_gmt":"2022-06-06T09:58:54","slug":"how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/","title":{"rendered":"How does force frictional sliding contact behave in the Rigid Dynamic solver ?"},"content":{"rendered":"<p>Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn.  In order to avoid integration difficulty with low sliding velocities (basically when the contact would ideally be sticking or close to sticking), the friction factor varies linearly between 0 and its nominal values if the sliding velocity is lower than a given velocity.<br \/>In summary,<br \/>If ||v||>=v_tol, Ft=mu*Fn<br \/>If ||v||<v_tol, Ft=mu*(||v||\/v_tol)*Fn<br \/>This velocity tolerance is internally computed from the contact radius among many other parameters.  Unfortunately, this tolerance cannot be obtained or set by the user. However, there is a command that affects its computation:<br \/>options=CS_SolverOptions()<br \/>options.VelocityToleranceFactor=1.0<br \/>The default value is 100. It allows to improve the behavior to be &#8220;closer&#8221; to a sticking contact but it won&#8217;t ever be perfectly sticking. With a factor=1 (a lower velocity tolerance), it will be possible to have lower sliding velocities, like an &#8220;almost sticking&#8221; contact status.<\/p>\n","protected":false},"template":"","class_list":["post-158158","topic","type-topic","status-publish","hentry","topic-tag-contact","topic-tag-dynamic","topic-tag-force","topic-tag-frictional","topic-tag-rigid","topic-tag-sliding","topic-tag-solver"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-06-06T09:58:54+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-06-06T09:58:54+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact\" \/>\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\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/force\\\/#listItem\",\"name\":\"force\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/force\\\/#listItem\",\"position\":3,\"name\":\"force\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/force\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/#listItem\",\"name\":\"How does force frictional sliding contact behave in the Rigid Dynamic solver ?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/#listItem\",\"position\":4,\"name\":\"How does force frictional sliding contact behave in the Rigid Dynamic solver ?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/force\\\/#listItem\",\"name\":\"force\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/\",\"name\":\"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge\",\"description\":\"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\\\/#breadcrumblist\"},\"datePublished\":\"2022-06-06T09:58:54+00:00\",\"dateModified\":\"2022-06-06T09:58:54+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge","description":"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/#listItem","name":"force"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/#listItem","position":3,"name":"force","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/#listItem","name":"How does force frictional sliding contact behave in the Rigid Dynamic solver ?"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/#listItem","position":4,"name":"How does force frictional sliding contact behave in the Rigid Dynamic solver ?","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/#listItem","name":"force"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/","name":"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge","description":"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/#breadcrumblist"},"datePublished":"2022-06-06T09:58:54+00:00","dateModified":"2022-06-06T09:58:54+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website","url":"https:\/\/innovationspace.ansys.com\/knowledge\/","name":"Ansys Knowledge","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Knowledge | Ansys Innovation Space","og:type":"article","og:title":"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge","og:description":"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/","article:published_time":"2022-06-06T09:58:54+00:00","article:modified_time":"2022-06-06T09:58:54+00:00","twitter:card":"summary_large_image","twitter:title":"How does force frictional sliding contact behave in the Rigid Dynamic solver ? | Ansys Knowledge","twitter:description":"Force Frictional Sliding contact is not designed to model a sticking situation. It works well for sliding contact where the friction leads to a resisting force (opposed to the sliding velocity) which is directly proportional to the normal contact force Ft=mu*Fn. In order to avoid integration difficulty with low sliding velocities (basically when the contact"},"aioseo_meta_data":{"post_id":"158158","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":"default","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":false,"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":"2025-10-17 18:06:23","updated":"2026-07-29 04:20:53","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\/knowledge\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/\" title=\"force\">force<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tHow does force frictional sliding contact behave in the Rigid Dynamic solver ?\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"force","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/force\/"},{"label":"How does force frictional sliding contact behave in the Rigid Dynamic solver ?","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-does-force-frictional-sliding-contact-behave-in-the-rigid-dynamic-solver\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["06-06-2022 20:20"],"_bbp_forum_id":["27792"],"_bbp_likes_count":["1"],"_btv_view_count":["2721"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/158158","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\/158158\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=158158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}