{"id":276024,"date":"2023-03-23T09:20:02","date_gmt":"2023-03-23T09:20:02","guid":{"rendered":"\/forum\/forums\/topic\/modal-analysis-15\/"},"modified":"2023-03-23T09:20:02","modified_gmt":"2023-03-23T09:20:02","slug":"modal-analysis-15","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-15\/","title":{"rendered":"Modal analysis"},"content":{"rendered":"<p>For the modal analysis of the structure the eigenvalues and eigenvectors are extracted from the different methods (Supernode method, block lanczos, etc., using characteristic equations. Is that correct?<\/p>\n<p>Another question is if I have assigned the number of modes required as 10 or 200 based on the requirement . How the mass matrix and stiffness matrix are taken for mode 10 and mode 200 for calculating the natural frequency .Is that if i assigned 10 or 200 the mass and stiffness matrix are changed according to the mode number?. Sir\/madam Kindly explain that it would be helpful for my research.<\/p>\n","protected":false},"template":"","class_list":["post-276024","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=\"For the modal analysis of the structure the eigenvalues and eigenvectors are extracted from the different methods (Supernode method, block lanczos, etc., using characteristic equations. Is that correct?Another question is if I have assigned the number of modes required as 10 or 200 based on the requirement . 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