Dear researcher.

I am trying to acquire knowledge on the topics related to the non linear behavior of rotating bladed disk.

I read some research papers :Article Theoretical and experimental investigations on steady-state ...

The problem is that I find the papers to specified to the matter they are studying and what I am looking for is to have a basic knowledge about the causes of non-linearities and where it influence in both steady state and transient regime. if I understand that I am sure I will get the following mathematical concept.

so please any who have a comment or an advise or a title to share with me, It is very welcomed and I would highly appreciate that

Thanks a lot in advance for your feedback