Using Ritz vector to capture 90% Mass participation
Using Ritz vector to capture 90% Mass participation
(OP)
i am doing modal analysis for one structure where i started by using eigen vector to define modes of vibration
after running 150 modes , i captured only 70% of mass in X,Y and Rz direction with last mode = 0.08 second
Thinking to shift from Eigen to Ritz vector as many articles recommend it to achieve mass participation for my such a case
the question is , which parameters i should define , should i include acceleration UX,Uy,Rz in one case only or shall i include other load pattern in the same case
after running 150 modes , i captured only 70% of mass in X,Y and Rz direction with last mode = 0.08 second
Thinking to shift from Eigen to Ritz vector as many articles recommend it to achieve mass participation for my such a case
the question is , which parameters i should define , should i include acceleration UX,Uy,Rz in one case only or shall i include other load pattern in the same case





RE: Using Ritz vector to capture 90% Mass participation
Jason McKee
proud R&D Manager of
Cross Section Analysis & Design
Software for the structural design of cross sections
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Reifnorcement Design etc.