{"id":28609,"date":"2018-01-25T04:45:29","date_gmt":"2018-01-25T04:45:29","guid":{"rendered":"\/forum\/forums\/topic\/work-for-hire-calculating-the-vibration-modes-of-a-thin-metal-cylinder-ie-snare-drum\/"},"modified":"2018-01-25T04:45:29","modified_gmt":"2018-01-25T04:45:29","slug":"work-for-hire-calculating-the-vibration-modes-of-a-thin-metal-cylinder-ie-snare-drum","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/work-for-hire-calculating-the-vibration-modes-of-a-thin-metal-cylinder-ie-snare-drum\/","title":{"rendered":"Work for hire: Calculating the vibration modes of a thin metal cylinder (ie. Snare Drum)"},"content":{"rendered":"<p>I am a hobbyist musician and I have been working on music synthesis models for physical instruments like drums. A snare drum&#8217;s sound can mostly be reduced to fundamentally three things: (1) Head vibration for which the modes are predicted by the Bessel function zeros, (2) Noise generated by the snare wires, and (3) Ring from the metal drum shell.<\/p>\n<p><\/p>\n<p>It is #3 that I need help with now.&nbsp;<\/p>\n<p><\/p>\n<p>I have been able to find articles which discuss various ways to predict the modes of a thin cylinder using ANSYS, so I know this is possible. But I do not have the engineering or physics background to be able to do it myself (I am medical by formal training\/trade).<\/p>\n<p><\/p>\n<p>I have attached a few articles reviewing this. I&#8217;m wondering if it would be hard to create a project that could calculate various modes (ie. m,n=1,1 up to say 10,10) based on a given cylinder thickness, radius, and depth, as well as a parameter to specify material&nbsp;properties (eg. aluminum, steel, brass).<\/p>\n<p><\/p>\n<p>I am also wondering if&nbsp;a drum shell would be best simulated as a clamped, free, or simply supported boundary condition.<\/p>\n<p><\/p>\n<p>If anyone would be able to do this for me as a small project, I would be happy to pay what is fair by PayPal. I am stuck with my synthesis project until I get this sorted out.<\/p>\n<p><\/p>\n<p>Thanks for any thoughts or ideas!<\/p>\n<p><\/p>\n<p>Mike<\/p>\n","protected":false},"template":"","class_list":["post-28609","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["776"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["1556"],"_bbp_subscription":["235719"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["28609"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","155703","158123","180590"],"_bbp_voice_count":["4"],"_bbp_reply_count":["23"],"_bbp_last_reply_id":["125304"],"_bbp_last_active_id":["125304"],"_bbp_last_active_time":["2020-08-24 15:51:01"]},"test":"mikejm"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/28609","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\/28609\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=28609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}