I'm now taking classes on mechanical vibrations and fluid dynamics, and those are two fields that are very interesting to me. I've always liked the subject of aerodynamics, but now I'm really liking to study mechanical vibrations, very interesting field of study. I'm looking for some specialty where I could use them both (something to pursue in a graduate program). I know about the subject of aeroelasticity and it looks really cool. It's the mix of elasticity, aerodynamics and mechanical vibrations. My first question is: how much of aerodynamics there is in aeroelasticity? Or it's more related to the field of structures? Second question: are there any other disciplines where I would get to study mechanical vibrations and aerodynamics together?