Advantage and disadvantage of resonance

  • Thread starter kindaichi
  • Start date
21
0

Main Question or Discussion Point

I have always been wondering,what is the advantage and disadvantage of resonance.I am currently studying it right now,and i do know it had caused a bridge to collapse before.
 

Answers and Replies

russ_watters
Mentor
19,016
5,168
It depends on the application. In a radio antenna it's a good thing, in a bridge it typically is not.
 
Claude Bile
Science Advisor
1,471
19
Resonances are typically frequencies where energy is easily coupled into the system. Depending on the application, this easy coupling of energy can be good or bad.

When we want to couple energy into a system, say in the case of an antenna, resonances are desirable, whereas if we want do dampen out energy in the case of anti-vibration table, resonances are bad news. Sometimes systems can exhibit multiple resonances, which is usually a bad thing no matter what, because a system that is jumping between resonances is usually rather unpredictable. Any multimode laser is a good example of where this occurs.

Claude.
 
Last edited:
rbj
2,221
7
It depends on the application. In a radio antenna it's a good thing, in a bridge it typically is not.
oh c'mon, Russ. it makes for great entertainment!

http://video.google.com/videoplay?docid=-3932185696812733207 [Broken]
http://video.google.com/videoplay?docid=8849554834285920420 [Broken]
http://video.google.com/videoplay?docid=7836010763965729158 [Broken]

how can that not be good?

resonance is always good.
 
Last edited by a moderator:

Related Threads for: Advantage and disadvantage of resonance

  • Last Post
Replies
6
Views
2K
  • Last Post
4
Replies
77
Views
14K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
6
Views
606
Replies
1
Views
809
  • Last Post
Replies
3
Views
6K
  • Last Post
Replies
13
Views
2K
Replies
2
Views
38K
Top