1. Lab 5: Damped simple harmonic motion
Simple harmonic oscillation
Damped harmonic oscillation
381 Mechanics

2. Simple harmonic oscillation
Ideal case: no friction

3. Simple harmonic oscillation (cont.)

5. Phase space plot (v vs. x)

6. Non-ideal spring (mass)
How should we consider the effect of finite spring mass?

7. Damped simple harmonic oscillation
Friction: retarding motion (energy dissipation)

8. Damped simple harmonic oscillation (cont.)

9. Damped harmonic oscillation (underdamping)
B is replaced by A* because x is a real function.

10. Damped harmonic oscillation (underdamping)

11. Damped harmonic oscillation

12. Damped harmonic oscillation (underdamping)

13. Approaching the ideal limit

14. Phase space plot (v vs. x)

15. Detection: ultrasonic motion detector