{"id":235713,"date":"2022-09-19T19:04:35","date_gmt":"2022-09-19T19:04:35","guid":{"rendered":"\/forum\/forums\/reply\/235713\/"},"modified":"2022-09-19T19:04:35","modified_gmt":"2022-09-19T19:04:35","slug":"235713","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/235713\/","title":{"rendered":"Reply To: Transmission of vibration between structures"},"content":{"rendered":"<p>&lt;p&gt;<em>&gt;&gt;How does the frame base connect to the ground? &nbsp;Are there four mount points that are fixed to ground?&nbsp;<\/em>&lt;\/p&gt;&lt;p&gt;&lt;span class=&#8221;VIiyi&#8221; lang=&#8221;en&#8221;&gt;&lt;span class=&#8221;JLqJ4b ChMk0b&#8221;&gt;&lt;span class=&#8221;Q4iAWc&#8221;&gt;Yes, the base is firmly fixed to the ground&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;<em>&lt;span class=&#8221;VIiyi&#8221; lang=&#8221;en&#8221;&gt;&gt;&gt;A Modal analysis will show the free vibrations of that structure. You should add a Distributed Mass on the pipe elements to represent the weight of the liquid in the pipe.&lt;\/span&gt;<\/em>&lt;\/p&gt;&lt;p&gt;&lt;span class=&#8221;VIiyi&#8221; lang=&#8221;en&#8221;&gt;&lt;span class=&#8221;JLqJ4b ChMk0b&#8221;&gt;&lt;span class=&#8221;Q4iAWc&#8221;&gt;Just to check free vibrations?&lt;\/span&gt;&lt;\/span&gt; &lt;span class=&#8221;JLqJ4b ChMk0b&#8221;&gt;&lt;span class=&#8221;Q4iAWc&#8221;&gt;And all?&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;<strong>&lt;span class=&#8221;VIiyi&#8221; lang=&#8221;en&#8221;&gt;&lt;span class=&#8221;JLqJ4b ChMk0b&#8221;&gt;&lt;span class=&#8221;Q4iAWc&#8221;&gt;If there are free vibrations, then there is vibration; if there are no free vibrations, then there is no vibration.&lt;\/span&gt; &lt;span class=&#8221;Q4iAWc&#8221;&gt;Right?&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;<\/strong>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-235713","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/235713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/235713\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=235713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}