{"id":395934,"date":"2024-12-02T11:39:45","date_gmt":"2024-12-02T11:39:45","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/395934\/"},"modified":"2024-12-02T11:39:45","modified_gmt":"2024-12-02T11:39:45","slug":"395934","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/395934\/","title":{"rendered":"Reply To: AQWA &#8211; Reference point for hydrodynamics in presence of fluid tanks"},"content":{"rendered":"<p>&lt;p&gt;When there are internal tanks defined with a structure, the motions and total added mass\/damping\/hydrostatic stiffness matrices and generalised forces are with respect to the rigid body motions at the combined center of COG, which is defined by Equation (3.25) in <a href=\"https:\/\/ansyshelp.ansys.com\/public\/account\/secured?returnurl=\/Views\/Secured\/corp\/v242\/en\/aqwa_thy\/aqwathy_internal_tank_axes_cog.html?q=combined%20cog\">3.4.1. Local Internal Tank Axes and Combined COG<\/a>.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-395934","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=\"When there are internal tanks defined with a structure, the motions and total added mass\/damping\/hydrostatic stiffness matrices and generalised forces are with respect to the rigid body motions at the combined center of COG, which is defined by Equation (3.25) in 3.4.1. Local Internal Tank Axes and Combined COG.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/395934\/\" \/>\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: AQWA \u2013 Reference point for hydrodynamics in presence of fluid tanks | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"When there are internal tanks defined with a structure, the motions and total added mass\/damping\/hydrostatic stiffness matrices and generalised forces are with respect to the rigid body motions at the combined center of COG, which is defined by Equation (3.25) in 3.4.1. Local Internal Tank Axes and Combined COG.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/395934\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-12-02T11:39:45+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-12-02T11:39:45+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: AQWA \u2013 Reference point for hydrodynamics in presence of fluid tanks | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"When there are internal tanks defined with a structure, the motions and total added mass\/damping\/hydrostatic stiffness matrices and generalised forces are with respect to the rigid body motions at the combined center of COG, which is defined by Equation (3.25) in 3.4.1. 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