November 20, 2023 at 11:25 am
Matthew Kirby
Subscriber

Hi Ashish,

Thanks for your reply.

Damping ratio is defined as 0.025 across the whole frequency spectrum. And no, all previous attempts at this analysis have run into the same problem with the offset between PSD input and reponse.
We regularly run analyses with this damping ratio but have not seen this issue before. 

Regards, 

Matt