Design a single axis s/c attitude controller
Assumptions:
J= 400 newton*meter*sec squared
Disturbance Torque: T sub d = .01 N*m (constant)
Input theta ref = unit step function
Ideal sensors and actuators
The system must meet the following requirements
zeta= 2^(1/2)/2
t sub r is less than or equal to 33 seconds
t sub s is less than or equal to 60 seconds ( 5% criterion)
The absolute value of the steady state error is less than or equal to .001 radians (Need gain to get this)
You could solve for a pole position; it must be a constant ray
FInd the derivation for the system block diagram (Hint: sum of the torques). Show supporting computations.