Proportional to its instantaneous velocity. Suppose that, as it slides over the horizontal surface, the mass is subject toĪ frictional damping force that opposes its motion, and is directly
Let us examine an example of aĬonsider the mass-spring system discussed in Section 2.1. We would therefore expect oscillations excited in such systems of a driven damped harmonic oscillator The variable parameter is the quality factor of the oscillator that is the ratio of the oscillators resonance. Systems that we encounter in everyday life suffer some sort of irreversible energy loss while they are in motion-due, for instance, to frictional or viscous heat generation. The main features of such oscillation is that, onceĮxcited, it never dies away. In the previous chapter, we encountered a number of energy conserving physical systems thatĮxhibit simple harmonic oscillation about a stable equilibrium state. Model the resistance force as proportional to the speed with which. Next: Quality Factor Up: Damped and Driven Harmonic Previous: Damped and Driven Harmonic Consider a forced harmonic oscillator with damping shown below.
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