Dear Thuong,

I don't work with Ls dyna, but if you have eigenvector data (numerical), two way existence for normalized in excel: 1- Normalized to the mass matrix and 2- Normalized to length. For mass matrix, in first step calculate mass modal matrix and for any mode (1/sqrt(Mi))*(eigenvector) and for length it's better for any mode, all data divided to degree freedom of the number of mode (mode 1 - DoF 1 , mode 2 - DoF 2 , ...).

If it's able for you, export these data from Ls dyna and after this procedure import this information to Ls dyna.

The best Personal Regards,

Milad 

Dear Milad,

Thank you for your answer. Infact, i'm actually searching for how to get the mass modal from Ls Dyna. 

Best regards,

Anh