EXAMPLE 4 Transfer function of a two-mass mechanical system
Consider the mechanical system shown in Figure 5.11 and its electrical circuit analog shown in Figure 5.12. The electrical circuit analog is a force-current analog as outlined in Table 2.1. The velocities and of the mechanical system are directly analogous to the node voltages and of the electrical circuit. The simultaneous equations, assuming that the initial conditions are zero, are
(5.28)
or
(5.29)
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