What is Resonant: Definition and 203 Discussions

Resonance describes the phenomenon of increased amplitude that occurs when the frequency of a periodically applied force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillating force is applied at a resonant frequency of a dynamic system, the system will oscillate at a higher amplitude than when the same force is applied at other, non-resonant frequencies.Frequencies at which the response amplitude is a relative maximum are also known as resonant frequencies or resonance frequencies of the system. Small periodic forces that are near a resonant frequency of the system have the ability to produce large amplitude oscillations in the system due to the storage of vibrational energy.
Resonance phenomena occur with all types of vibrations or waves: there is mechanical resonance, acoustic resonance, electromagnetic resonance, nuclear magnetic resonance (NMR), electron spin resonance (ESR) and resonance of quantum wave functions. Resonant systems can be used to generate vibrations of a specific frequency (e.g., musical instruments), or pick out specific frequencies from a complex vibration containing many frequencies (e.g., filters).
The term resonance (from Latin resonantia, 'echo', from resonare, 'resound') originated from the field of acoustics, particularly the sympathetic resonance observed in musical instruments, e.g., when one string starts to vibrate and produce sound after a different one is struck.

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  1. D

    Critical Damping in Multi-Modal Resonant System

    Let's say I have a system with multiple oscillatory modes. Is it possible to have anything in this system that resembles critical damping?
  2. H

    Oxygen energy levels and resonant wavelengths?

    How many energy levels the oxygen atom have? What energy (in eV) is required to get to each level. From my research i have only been able to find the first two levels, the first of which is a forbidden level. 1.=.98eV 2.=1.63eV
  3. A

    Find Q Factor of Resonant Amplifier Circuit

    How find Q factor of this resonant amp cct.because "R" is not theare, cant apply " Q=( ωL/r) or =(Dynamic R/ωL) "
  4. I

    Using a DC Choke in Resonant Circuits w/ Capacitors

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  5. N

    Engineering Resonant frequencies of simple RLC circuit

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  6. K

    Resonant Frequency of a spring

    Hi all, I have a problem at work, I have been asked to work out the resonant frequency of an assembly within our mechanical face seal. We have a mass (the face) attached to springs that are preloaded. The springs are fixed at the other end and the face is also pressed up against the seat...
  7. D

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  8. S

    Is there a func' for ideal x-section area in a resonant beam?

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  9. T

    Resonant Absorption: Does Material Absorb Wave Energy?

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  10. X

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  11. P

    Self Resonant Frequency in a Solenoid

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  12. Q

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  13. K

    Resonant Frequency of a tuning fork

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  14. I

    How to do simulate a resonant frequency?

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  15. I

    Emulate something in software that has a resonant frequency

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  16. M

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  17. W

    Cool resonant mode demonstration

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  18. S

    Parallel circuit with resonant branch

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  19. N

    Resonant and Non Resonant Susceptibility

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  20. V

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  21. N

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  22. T

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  23. P

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  24. S

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  25. S

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  26. A

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  27. P

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  28. S

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  29. Saladsamurai

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  30. C

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  31. V

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  32. R

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  33. J

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  34. M

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  35. S

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  36. S

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  37. S

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  38. S

    Calculating 2nd and 3rd Resonant Lengths

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  39. J

    Resonant length and wavelength of sound?

    hi we did a lab with a resonant tube filled with water we're supposed to figure out the relationship between the resonant length and the wavelength. what we did was we filled up the resonant tube with water then put a tuning fork above it and found where that same sound was made. Here is an...
  40. J

    Resonant frequency of loop antenna

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  41. D

    Engineering Explain LC Resonance in a Circuit

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  42. K

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  43. O

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  44. K

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  45. B

    What are the basic functions of an inductor?

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  46. M

    Deteriming resonant frequencies

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  47. J

    Changing Resonant Frequency of Gas?

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  48. T

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  49. S

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  50. N

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