{"id":318689,"date":"2023-11-20T21:55:13","date_gmt":"2023-11-20T21:55:13","guid":{"rendered":"\/forum\/forums\/reply\/318689\/"},"modified":"2023-11-20T21:55:13","modified_gmt":"2023-11-20T21:55:13","slug":"318689","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/318689\/","title":{"rendered":"Reply To: LS-Dyna result: displacement vs acceleration"},"content":{"rendered":"<p>&lt;p&gt;Note that any integration or differentiation you do in LSPP or otherwise will be affected by the output timestep. To match LS-DYNA calculations, you should output at the computation timestep and then integrate. Also keep in mind that calculated acceleration is inherently noisy in explicit analysis.&lt;\/p&gt;&lt;p&gt;LS-DYNA applies velocities internally, irrespective of whether displacement or acceleration is prescribed, so you can try to apply velocity ground motion records if you have them. Alternatively, you can apply the accelerations using LOAD_BODY if appropriate.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-318689","reply","type-reply","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=\"Note that any integration or differentiation you do in LSPP or otherwise will be affected by the output timestep. To match LS-DYNA calculations, you should output at the computation timestep and then integrate. 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