resonance and damping

Question 1

resonance

Answer 1

object subjected to oscillating force of frequency clos to own natural frequency. Resonant frequency is the peak amplitude

Question 2

damping

Answer 2

decreaesed amplitude of oscillation due to energy loss from friction or other resistive forces

Question 3

zero damping

Answer 3

amplitude doesn’t diminish with time

Question 4

under damping

Answer 4

coefficient 0-0.3, change in input means output keeps oscillating around baseline

Question 5

over damping

Answer 5

coefficeint >1, change in input means output only very slowly reaches baseline

Question 6

critical damping

Answer 6

coefficent = 1, response is blunted but any faster overshoots baseline

Question 7

optimal damping

Answer 7

coefficent = 0.64, get rapid response to change in input value with minimal overshoot, gets to new value with no more than 2 oscillations around baseline