{"id":253233,"date":"2023-03-09T11:16:15","date_gmt":"2023-03-09T11:16:15","guid":{"rendered":"\/forum\/forums\/topic\/aqwa-negative-radiation-damping\/"},"modified":"2023-03-09T11:16:15","modified_gmt":"2023-03-09T11:16:15","slug":"aqwa-negative-radiation-damping","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/aqwa-negative-radiation-damping\/","title":{"rendered":"[AQWA] Negative radiation damping"},"content":{"rendered":"<p>Hello, When I do <a class=\"color_pc_blue_text\" data-keyword=\"hydrodynamic calculation\">hydrodynamic diffraction analysis on a spar with a plate like this:<\/a><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/03\/09-03-2023-1678359808-mceclip0.png\"><\/p>\n<p><a class=\"color_pc_blue_text\" data-keyword=\"hydrodynamic calculation\">the result shows there was a continuous negetive damping&nbsp; from 0.18-0.5rad\/s on the heave motion.<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/03\/09-03-2023-1678360123-mceclip1.png\" width=\"1186\" height=\"460\"><\/p>\n<p><span class=\"tgt color_text_0\" data-section=\"0\" data-sentence=\"0\" data-group=\"0-0\">Is this correct,<\/span><span class=\"tgt color_text_0\" data-section=\"0\" data-sentence=\"1\" data-group=\"0-1\"> or how can I fix it?<\/span><\/p>\n","protected":false},"template":"","class_list":["post-253233","topic","type-topic","status-closed","hentry","topic-tag-aqwa"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello, When I do hydrodynamic diffraction analysis on a spar with a plate like this:the result shows there was a continuous negetive damping from 0.18-0.5rad\/s on the heave motion.Is this correct, or how can I fix it?\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" 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