Modal Analysis for CE Structures

AI Thread Summary
Modal analysis is crucial for evaluating large structures, and recent insights reveal that both analytical approaches and scale modeling are employed. A noteworthy article in this month's Sound & Vibration magazine highlights significant modal experiments conducted on structures such as dams and bridges. The article includes visuals that enhance understanding of these complex evaluations. It is recommended for anyone interested in the field of structural dynamics. Engaging with this resource can deepen knowledge about modal analysis techniques.
FredGarvin
Science Advisor
Messages
5,093
Reaction score
10
Not too long ago, there was a thread in the General Physics section (I think) where someone was asking about how large buildings are evaluated from a modal analysis perspective. It was my experience that large structures had a completely analytical approach with some scale modeling.

This month has shown me that I was not very well informed on the topic. In this month's Sound & Vibration, there is a great article on this very topic. They even show pictures of large modal experiments on structures like a dam and a bridge.

It's well worth the read for anyone who has an interest in this field of study.

Here's the link:
http://www.sandv.com/downloads/0606cunh.pdf
 
Engineering news on Phys.org
Thanks for sharing.
 
Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
I have an engine that uses a dry sump oiling system. The oil collection pan has three AN fittings to use for scavenging. Two of the fittings are approximately on the same level, the third is about 1/2 to 3/4 inch higher than the other two. The system ran for years with no problem using a three stage pump (one pressure and two scavenge stages). The two scavenge stages were connected at times to any two of the three AN fittings on the tank. Recently I tried an upgrade to a four stage pump...

Similar threads

Replies
8
Views
2K
Replies
3
Views
1K
Replies
1
Views
2K
Replies
31
Views
4K
Replies
9
Views
3K
Back
Top