CDIS 4313 Lecture 5: Resonance
30 Jan 2017
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Document Summary
Tendency of a system to vibrate with the greatest amplitude in response to a frequency that. 2) matches or comes close to its own natural frequency. Without interference, the object will always vibrate at whatever its natural frequency is. Natural frequency (nf) frequency at which an object vibrates freely when disturbed and is determined by the object"s length, density, tension, and stiffness (cid:523)flexibility/elasticity(cid:524). Tuning fork"s tines will oscillate back and forth at a certain frequency depending on length and. Nf = (cid:883)(cid:882)(cid:882) (z as long as its physical characteristics don"t change. Pictures rattle on a wall when a loud car stereo goes by. If vibrations of car stereo are close to. Nf of wall, the wall will be set into vibration and pictures on it will rattle. In cartoons, when singer hits a high note and a glass breaks. If amplitude of vibration is great enough, glass shatters as it vibrates. Forced vibration is the basis of resonance.
