March 29, 2020 at 10:30 am
MJol
Subscriber

Thank you Peter,


That's work but after sharing the whole structure with hidden bracings, you have to share the connexion between the structure and the bracings.


I did a modal analysis with the correct structure (verified in static) and the modal frequences are 0Hz with all the structure mass in the 3 directions.


How do you read that? Why the main modes are for 0 Hz?


Here a picture of the ratio between effective mass and total mass.



Thank you for your help.


Maxime