{"id":162142,"date":"2023-01-25T07:34:24","date_gmt":"2023-01-25T07:34:24","guid":{"rendered":"\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/"},"modified":"2023-07-31T12:36:28","modified_gmt":"2023-07-31T12:36:28","slug":"bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/","title":{"rendered":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?"},"content":{"rendered":"<p>The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion.  So, if there is no data, ANSYS will interpret as zero stiffness for the negative relative displacement. It is required to define load\/deflection (moment\/rotation) curves for both positive and negative deflection.<\/p>\n","protected":false},"template":"","class_list":["post-162142","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-bushing-joint","topic-tag-constraints","topic-tag-coupling","topic-tag-coupling-and-constraints","topic-tag-mechanical","topic-tag-modeling-and-meshing","topic-tag-moment","topic-tag-mpc","topic-tag-rotation","topic-tag-structural-mechanics"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/\" \/>\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=\"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-01-25T07:34:24+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:36:28+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for\" \/>\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\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/#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\\\/structural-mechanics\\\/#listItem\",\"name\":\"structural-mechanics\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/#listItem\",\"position\":3,\"name\":\"structural-mechanics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/#listItem\",\"name\":\"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/#listItem\",\"position\":4,\"name\":\"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/#listItem\",\"name\":\"structural-mechanics\"}}]},{\"@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\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/\",\"name\":\"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge\",\"description\":\"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\\\/deflection (moment\\\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\\\/#breadcrumblist\"},\"datePublished\":\"2023-01-25T07:34:24+00:00\",\"dateModified\":\"2023-07-31T12:36:28+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":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge","description":"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/#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\/structural-mechanics\/#listItem","name":"structural-mechanics"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/structural-mechanics\/#listItem","position":3,"name":"structural-mechanics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/structural-mechanics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/#listItem","name":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/#listItem","position":4,"name":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/structural-mechanics\/#listItem","name":"structural-mechanics"}}]},{"@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\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/","name":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge","description":"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/#breadcrumblist"},"datePublished":"2023-01-25T07:34:24+00:00","dateModified":"2023-07-31T12:36:28+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":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge","og:description":"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/","article:published_time":"2023-01-25T07:34:24+00:00","article:modified_time":"2023-07-31T12:36:28+00:00","twitter:card":"summary_large_image","twitter:title":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected? | Ansys Knowledge","twitter:description":"The tabular stiffness is for the relative MPC184 displacement, and sometimes there can be issues due to the sign convention and the fact that many only put in a portion of the load\/deflection (moment\/rotation) curves and do not put the negative portion. So, if there is no data, ANSYS will interpret as zero stiffness for"},"aioseo_meta_data":{"post_id":"162142","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 19:41:41","updated":"2026-07-29 07:04:16","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\/structural-mechanics\/\" title=\"structural-mechanics\">structural-mechanics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tBushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?\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":"structural-mechanics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/structural-mechanics\/"},{"label":"Bushing joints using constant stiffness, it works fine, but when using tabular stiffness, why it does not work as expected?","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/bushing-joints-using-constant-stiffness-it-works-fine-but-when-using-tabular-stiffness-why-it-does-not-work-as-expected\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_forum_id":["27793"],"_bbp_last_active_time":["1-24-2023  20:20:17"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["3426"],"siebel_km_number":["2053182"],"product_version":["19"],"km_published_date":["2018-02-13T19:26:36.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/162142","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\/162142\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=162142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}