{"id":165590,"date":"2023-03-17T09:00:42","date_gmt":"2023-03-17T09:00:42","guid":{"rendered":"\/knowledge\/forums\/topic\/why-does-specifying-the-default-ratio1-0-affect-the-new-synchro-results-in-ansys-11-0-it-results-in-a-general-rotational-force-analysis-being-done-instead-of-an-unbalanced-force\/"},"modified":"2023-07-31T12:31:34","modified_gmt":"2023-07-31T12:31:34","slug":"why-does-specifying-the-default-ratio1-0-affect-the-new-synchro-results-in-ansys-11-0-it-results-in-a-general-rotational-force-analysis-being-done-instead-of-an-unbalanced-force","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-specifying-the-default-ratio1-0-affect-the-new-synchro-results-in-ansys-11-0-it-results-in-a-general-rotational-force-analysis-being-done-instead-of-an-unbalanced-force\/","title":{"rendered":"Why does specifying the default ratio=1.0 affect the new SYNCHRO results in ANSYS 11.0?  It results in a general rotational force analysis being done instead of an unbalanced force."},"content":{"rendered":"<p>The SYNCHRO command is unlike most ANSYS commands in that specifying the default is not the same as leaving the field blank.  When any numerical value is specified for ratio: [SYNCHRO,RATIO] it is assumed that the specified force is to be applied as a normal rotational force and not an unbalance (F=omega^2 * Unb) [Ref:  SYNCHRO command notes]<\/p>\n","protected":false},"template":"","class_list":["post-165590","topic","type-topic","status-publish","hentry","topic-tag-4653","topic-tag-mechanical-apdl-f-ansys","topic-tag-modal-harmonic-response","topic-tag-structural-dynamics","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 SYNCHRO command is unlike most ANSYS commands in that specifying the default is not the same as leaving the field blank. When any numerical value is specified for ratio: [SYNCHRO,RATIO] it is assumed that the specified force is to be applied as a normal rotational force and not an unbalance (F=omega^2 * Unb) [Ref:\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-specifying-the-default-ratio1-0-affect-the-new-synchro-results-in-ansys-11-0-it-results-in-a-general-rotational-force-analysis-being-done-instead-of-an-unbalanced-force\/\" \/>\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=\"Why does specifying the default ratio=1.0 affect the new SYNCHRO results in ANSYS 11.0? It results in a general rotational force analysis being done instead of an unbalanced force. | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"The SYNCHRO command is unlike most ANSYS commands in that specifying the default is not the same as leaving the field blank. 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It results in a general rotational force analysis being done instead of an unbalanced force. | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The SYNCHRO command is unlike most ANSYS commands in that specifying the default is not the same as leaving the field blank. 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