{"id":319611,"date":"2023-11-27T16:33:20","date_gmt":"2023-11-27T16:33:20","guid":{"rendered":"\/forum\/forums\/reply\/319611\/"},"modified":"2023-11-27T16:33:20","modified_gmt":"2023-11-27T16:33:20","slug":"319611","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319611\/","title":{"rendered":"Reply To: How to setting Free Decay Test in Ansys Aqwa"},"content":{"rendered":"<p>&lt;p&gt;A freely floating structure has no horizontal plane (surge, sway and yaw) hydrostatic stiffness, there is no way to do a sway freely decaying test for such model.&nbsp; Please define the proper mooring system of this FOWT structure. As the mooring system may provide the stiffness along the horzontal plane directions, you may see the sway decaying time domain response. It may be even better if you can define the current drag coefficients for this structure, then the nonlinear viscous drag forces will be included in the freely decaying test.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-319611","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=\"A freely floating structure has no horizontal plane (surge, sway and yaw) hydrostatic stiffness, there is no way to do a sway freely decaying test for such model. Please define the proper mooring system of this FOWT structure. As the mooring system may provide the stiffness along the horzontal plane directions, you may see the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319611\/\" \/>\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: How to setting Free Decay Test in Ansys Aqwa | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"A freely floating structure has no horizontal plane (surge, sway and yaw) hydrostatic stiffness, there is no way to do a sway freely decaying test for such model. Please define the proper mooring system of this FOWT structure. As the mooring system may provide the stiffness along the horzontal plane directions, you may see the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/319611\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-11-27T16:33:20+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-11-27T16:33:20+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: How to setting Free Decay Test in Ansys Aqwa | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"A freely floating structure has no horizontal plane (surge, sway and yaw) hydrostatic stiffness, there is no way to do a sway freely decaying test for such model. Please define the proper mooring system of this FOWT structure. 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