Forced Vibration (damped, undamped)

Undamped forced vibration:

For undamped vibration the damping factor is zero. Thus,

and

The complementary solution, known as the transient solution is of no special interest since with time it dies out with small amount of damping which can never be completely eliminated. we have not discussed about the complementary solution, which is called transient solution. This is of no special interest.