{"id":424914,"date":"2025-03-10T10:38:10","date_gmt":"2025-03-10T10:38:10","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-use-mass-amp-mooring-stiffness-matrices-in-aqwa-diffraction\/"},"modified":"2025-03-13T09:20:39","modified_gmt":"2025-03-13T09:20:39","slug":"how-to-use-mass-amp-mooring-stiffness-matrices-in-aqwa-diffraction","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-use-mass-amp-mooring-stiffness-matrices-in-aqwa-diffraction\/","title":{"rendered":"How to use Mass &amp; Mooring Stiffness matrices in AQWA diffraction?"},"content":{"rendered":"<p>&lt;p&gt;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt;Hi,&lt;\/span&gt; &lt;span style=&#8221;font-size: 10pt;&#8221;&gt;I would like to use externally calculated dimensional mass matrix, mooring stiffness matrix and a frequency independent damping matrix for diffraction calculation in AQWA. The purpose of using these matrix is to calculate QTF considering the first order motions of the body. I want these matrix to be used during the first order motion computation of the body.&lt;\/span&gt; &lt;span style=&#8221;font-size: 10pt;&#8221;&gt;Could you please guide me on how to input these matrices properly either in AQWA workbench or command line input file, *.DAT? If you need further information, please let me know.&lt;\/span&gt; &lt;span style=&#8221;font-size: 10pt;&#8221;&gt;Best regards,&lt;\/span&gt; &nbsp; &nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-424914","topic","type-topic","status-answered","hentry","topic-tag-ansys-aqwa","topic-tag-aqwa","topic-tag-mooring-system-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["424914"],"_bbp_subscription":["14127","180344"],"_bbp_author_ip":["129.215.232.209"],"_bbp_last_reply_id":["425523"],"_bbp_last_active_id":["425523"],"_bbp_last_active_time":["2025-03-13 09:07:20"],"_bbp_reply_count":["7"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["14127","180344"],"_btv_view_count":["331"],"_bbp_topic_status":["answered"]},"test":"touhidul-islamed-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/424914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/424914\/revisions"}],"predecessor-version":[{"id":425412,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/424914\/revisions\/425412"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=424914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}