MT-1620 al.2002 ∫8(0(-)d=g) Use this force function in the governing equation mq+kq=8(t-T Figure 20.5 Representation of unit impulse force at time t F() ∈ → Use Initial Condition of system at rest @t<τq Paul A Lagace @2001 Unit 20τ MIT - 16.20 Fall, 2002 ∞ ⇒ ( ) δ (t − τ ) dt = g ( ) ∫−∞ gt τ Use this force function in the governing equation: m q˙˙ + k q = δ (t − τ ) Figure 20.5 Representation of unit impulse force at time τ Use Initial Condition of system at rest: @ t < τ q = 0 q˙ = 0 Paul A. Lagace © 2001 Unit 20 - 11