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Introduction to Servomechanisms
Predicting Maximum Performance
5 other sections not shown
amplitude angular impulse delivered angular momentum basic servo block diagram Bode diagram Bode plot calculated closed-loop response complex numbers components constant control system Coulomb friction dashed decibels derived differential dyne-cm per radian equation error signal Figure 55 Figure 60 fourth quarters frequency response gear ratio harmonic increased inertia input shaft isocline limit cycle load acceleration load displacement load inertia load oscillation load shaft magnitude maximum velocity method of tangents motor shaft negative damping nonlinear servo Nyquist diagram on-off servo open-loop control open-loop transfer function oscillation output displacement output shaft overshoot phase portrait phase shift phase trajectories phase-plane method plane plot polar form position predict radians per second result saddle point servo design servo of Figure servo output servo with negative servomechanisms shaft rotation shown in Figure simple servo sinusoid stability steady-state step input step response tion undamped linear servo underdamped unstable viscous damper viscous-damped linear servo voltage zero speed