The physical behavior of automotive suspension systems is similar to an RLC circuit. The differential equation is defined by
where p(t) is the position variable of a piston in the cylinder of a shock absorber, m is the mass of the wheel, μf is the coefficient of friction, and K is the spring constant. The equivalent circuit representation is shown in Fig. 9.64. Suppose that the suspension is in its initial position at t = 0 (p(0) = 0), but it experiences a bump such that dp/dt at t = 0 is
■ FIGURE 9.64
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