Homework H6.M - Sp24

Problem statement
Solution video

https://youtu.be/DEuWb52cJQE


DISCUSSION THREAD

Low and high frequency excitations: ω < ωn and ω > ωn

  • The top animation below shows the particular solution for the response corresponding to an excitation frequency that is less than the natural frequency. For this range of excitation frequencies, the response is in phase with the base motion.
  • The lower animation is for the excitation frequency larger than the natural frequency. As expected, this response is 180° out of phase with the excitation.

Are these phase differences apparent to you as you view the animations?


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