{"id":157394,"date":"2020-01-24T14:54:05","date_gmt":"2020-01-24T14:54:05","guid":{"rendered":"\/forum\/forums\/topic\/attaching-2-objects-moment-of-inertia-with-without-point-mass\/"},"modified":"2020-01-24T14:54:05","modified_gmt":"2020-01-24T14:54:05","slug":"attaching-2-objects-moment-of-inertia-with-without-point-mass","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/attaching-2-objects-moment-of-inertia-with-without-point-mass\/","title":{"rendered":"Attaching 2 Objects + moment of inertia with\/without point mass"},"content":{"rendered":"

Hello Everyone,  i was trying to keep this question short but i really couldn’t. sorry about that but please have a look and help if possible.<\/p>\n

I am a student(bad at software) and trying to make a simple geometry of a beam(flexible),  To find the deformation\/natural frequency\/moment of inertia\/deflection, etc (using harmonic response). I need to use Ansys.(i never used Ansys before but trying to learn it from last 2 days). I have few questions,(one about the space claim tutorial and one general, since posting it in spaceclaim tutorial section so need to mention this) posted some pictures as well for better understanding my question and to keep it simple.<\/p>\n

When i create a bar with default material structural steel, it gives me the value of moment of Inertia, mass of object etc. I fixed one side of the bar and want to rotate it horizontally (say Z-axis). i dont know what does this Ip1,Ip2,Ip3 means. See the picture.<\/p>\n

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Question 1:<\/strong>  Which inertia value should i take according to picture? and what does this Ip1,Ip2,Ip3 means? (using static structural)<\/p>\n

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Next: SpaceClaim tutorial:<\/strong><\/p>\n

I want to add point mass to the end of the rod and then check the deformation, but when I add the point mass it doesn’t show the value of the moment of inertia.<\/p>\n

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saw some tutorials and found a way to get the moment of inertia value for object with point mass but that requires another part attached to the geometry. i have tried to attach this small piece to have 2 geometry files to follow the tutorial but I couldn’t attach it, someone i know used ansys 4-5 years ago said mate option will merge it but I can’t seem to find it.  then i was watching this “Tutorial i was trying to follow”<\/p>\n

I used merge\/split, it got merged and became one with the bar. i tried to draw that small piece at the end but it got attached automatically etc.<\/p>\n

See the picture, in picture 3 it shows the position where i want to stick this object with its own point mass. any side of the long bar is fine as long as that small piece can stick .<\/p>\n

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2nd Question:<\/strong> Can anyone tell me how to attach the small piece at the end but with the individual separate values so i can add point mass to the small piece and check the effect on the beam as a whole.<\/p>\n

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Thank you very much.<\/p>\n

sorry for the lengthy post. and Sorry if we are not allowed to post external links like youtube, it was not mentioned in guidelines for posting so i just did. <\/p>\n

 <\/p>\n","protected":false},"template":"","class_list":["post-157394","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_view_count":["2327"],"_bbp_likes_count":["0","0"],"_bbp_forum_subforum_count":["0"],"_btv_view_count":["1722"],"_bbp_subscription":["246792"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["157394"],"_bbp_forum_id":["153302"],"_bbp_engagement":["240","172504"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["157396"],"_bbp_last_active_id":["157396"],"_bbp_last_active_time":["2020-01-24 18:58:09"]},"test":"mehmoodkhan0345"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/157394","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":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/157394\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=157394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}