Assignment:
For a VTOL (Vertical Take Off and Landing) aircraft, there is the following Block Diagram (see attached VTOL_BlockDiagram file).
a) Find the system response for step input and determine the steady state error
b) Find the variation of Kc in the stability of VTOL
c) Is the system always stable?
a = 0.5; b = 10; c =3
Ka = 1; Kb = 17; Kc = 1
u(t) = step distance = 0.1
r(t) = step input = 1
Solve parts a, b and c by both methods:
1) Classical Method using Laplace Transform, Final Value Theorem and Routh's Stability Criterion.
2) Signal Flow Graph, State Variables, State Equation, Transition Matrix, Eigenvalues