{"id":170802,"date":"2023-06-05T07:05:09","date_gmt":"2023-06-05T07:05:09","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-measure-the-roll-and-pitch-angles-of-a-body-referenced-to-a-fixed-ground-coordinate-system-for-all-time-steps-2\/"},"modified":"2023-07-31T12:33:48","modified_gmt":"2023-07-31T12:33:48","slug":"how-to-measure-the-roll-and-pitch-angles-of-a-body-referenced-to-a-fixed-ground-coordinate-system-for-all-time-steps-2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-measure-the-roll-and-pitch-angles-of-a-body-referenced-to-a-fixed-ground-coordinate-system-for-all-time-steps-2\/","title":{"rendered":"How to measure the roll and pitch angles of a body (referenced to a fixed ground coordinate system) for all time steps?"},"content":{"rendered":"<p>To capture the rotation, we can add a Body-to-Ground General Joint with all DOF set to free (default is all fixed).   A General Joint with all DOF free will not change the kinematics of the assembly, but it will allow to track the relative rotation of the body.<\/p>\n","protected":false},"template":"","class_list":["post-170802","topic","type-topic","status-publish","hentry","topic-tag-18-2","topic-tag-general","topic-tag-mechanical","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["2\/6\/2023 20:20"],"_bbp_forum_id":["27789"],"_bbp_author_ip":["209.182.204.162"],"_btv_view_count":["673"],"siebel_km_number":["2051280"],"product_version":["18.2"],"km_published_date":["2017-09-13T00:00:00.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical"],"_edit_lock":["1705037057:80072"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/170802","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\/170802\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=170802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}