
doi: 10.1109/9.983365
We introduce cascade normal forms for underactuated mechanical systems that are convenient for control design. These normal forms include three classes of cascade systems, namely, nonlinear systems in strict feedback form, feedforward form, and nontriangular quadratic form (to be defined). In each case, the transformation to cascade systems is provided in closed-form. We apply our results to the Acrobot, the rotating pendulum, and the cart-pole system.
Cascade systems, nonlinear control, normal forms, symmetry, underactuated systems, normal forms, 610, nonlinear control, Cascade systems, symmetry, underactuated systems, 620
Cascade systems, nonlinear control, normal forms, symmetry, underactuated systems, normal forms, 610, nonlinear control, Cascade systems, symmetry, underactuated systems, 620
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