{"id":370865,"date":"2024-07-06T08:07:32","date_gmt":"2024-07-06T08:07:32","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/using-half-power-bandwidth-method-to-determine-damping-ratio-from-harmonic-analy\/"},"modified":"2024-07-06T08:07:32","modified_gmt":"2024-07-06T08:07:32","slug":"using-half-power-bandwidth-method-to-determine-damping-ratio-from-harmonic-analy","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/using-half-power-bandwidth-method-to-determine-damping-ratio-from-harmonic-analy\/","title":{"rendered":"Using Half-Power Bandwidth Method to Determine Damping Ratio from Harmonic Analy"},"content":{"rendered":"<p>I am conducting a wave spring analysis in ANSYS to determine the damping ratio using harmonic analysis. I&#8217;ve performed a modal analysis to find the natural frequencies and then conducted a harmonic analysis, resulting in an amplitude vs. frequency graph.<\/p>\n<p>Can I use the half-power bandwidth method to extract the damping ratio from this graph? <em>I want to compare these simulation results with those obtained from an impact hammer test.<\/em> <strong>Is this method suitable for such a comparison, and how can I accurately extract the damping ratio from the simulation results?<\/strong><img decoding=\"async\" title=\"Harmonic Analysis in ansys and finding damping ratio from this graph\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/06-07-2024-1720253139-ddd.JPG\" alt=\"Harmonic Analysis in ansys\"><\/p>\n","protected":false},"template":"","class_list":["post-370865","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I am conducting a wave spring analysis in ANSYS to determine the damping ratio using harmonic analysis. I&#039;ve performed a modal analysis to find the natural frequencies and then conducted a harmonic analysis, resulting in an amplitude vs. frequency graph.Can I use the half-power bandwidth method to extract the damping ratio from this graph? 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