Advantage and disadvantage of resonance

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SUMMARY

The discussion centers on the advantages and disadvantages of resonance, highlighting its application-dependent nature. In radio antennas, resonance facilitates efficient energy coupling, making it beneficial. Conversely, in structures like bridges, resonance can lead to catastrophic failures, as evidenced by historical collapses. The unpredictability of systems exhibiting multiple resonances, such as multimode lasers, is also noted as a significant drawback.

PREREQUISITES
  • Understanding of basic physics concepts related to waves and frequencies
  • Familiarity with radio antenna design and functionality
  • Knowledge of structural engineering principles, particularly regarding resonance effects
  • Awareness of multimode laser operations and their characteristics
NEXT STEPS
  • Research the principles of resonance in radio antennas and their design
  • Study case studies of bridge collapses due to resonance effects
  • Explore methods for damping resonance in engineering applications
  • Investigate the behavior of multimode lasers and their resonance characteristics
USEFUL FOR

Engineers, physicists, and students studying wave mechanics, structural integrity, and antenna technology will benefit from this discussion.

kindaichi
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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.
 
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It depends on the application. In a radio antenna it's a good thing, in a bridge it typically is not.
 
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:
russ_watters said:
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
http://video.google.com/videoplay?docid=8849554834285920420
http://video.google.com/videoplay?docid=7836010763965729158

how can that not be good?

resonance is always good.
 
Last edited by a moderator:

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