{"id":389369,"date":"2024-10-12T12:33:50","date_gmt":"2024-10-12T12:33:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-surface-acoustic-wave-resonator\/"},"modified":"2024-10-12T12:33:50","modified_gmt":"2024-10-12T12:33:50","slug":"simulating-surface-acoustic-wave-resonator","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-surface-acoustic-wave-resonator\/","title":{"rendered":"simulating Surface acoustic wave resonator"},"content":{"rendered":"<p>&lt;p&gt;im trying to simulate a surface acoustic wave resonator by Ansys 2023R1 in coupling harmonic and coupling static.Although i can get the solution,it seems to be wrong comparing to the answer of the same model in Comsol.I doubt the mistake may happen in the aspect listed below.&lt;\/p&gt;&lt;p&gt;First,i use the element type 226 for both piezoelectric material and the electrode.I tried to use solid 186for the electrode instead,but someting wrong happend when i set the phisycal region.&lt;\/p&gt;&lt;p&gt;Secondly. In comsol i have set a electric boundary conditon,which the surface charge density of the piezoelectric part is always zero.But i can find anywhere to set the same boundary condition instead.&lt;\/p&gt;&lt;p&gt;&nbsp;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/12-10-2024-1728736164-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;this is the model i made,for those who dont understand chinese A is the fixed support B is grounding voltage C is the input voltage which set to 1V.&lt;\/p&gt;&lt;p&gt;Willingly find someone who can teach me how to fix my model.&lt;\/p&gt;&lt;p&gt;i also found an example which can meet what i need can<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/12-10-2024-1728736340-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;does anybody know how to reproduction the same model&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-389369","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"im trying to simulate a surface acoustic wave resonator by Ansys 2023R1 in coupling harmonic and coupling static.Although i can get the solution,it seems to be wrong comparing to the answer of the same model in Comsol.I doubt the mistake may happen in the aspect listed below.First,i use the element type 226 for both piezoelectric\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-surface-acoustic-wave-resonator\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning 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