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Normal modes/Free modes

  • Thread starter Daniiel
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Hey,

I just wanted to clarify the meaning of a "Free Mode" in an harmonic oscillator.

From my understanding a free mode is when the system is in motion, so for example if there were a loop, with a spring around it and two masses attached to the spring, the first mode is a free mode, when the spring and the masses simply spin around the loop, and the second mode is a normal mode when both masses meet together at one side of the loop then repel eachother to meet at the other side.

Is that a correct way of describing a free mode?
 

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