ME 4183 Chapter : Exam 1 2007
Document Summary
Me 4183 theory and design of mechanical control systems. Name the three major design criteria for control systems. Solution: ensure stability, shape the transient response, and minimize the steady-state error. Solution: closed-loop systems use the concept of feedback while open-loop systems don"t. That is, they measure the plant output, compare it to the input command, and then use this information to correct the output response. Solution: the natural response is the way the system responds to nonzero initial conditions when no external input is applied. The forced response is the way the system responds to an external input when its initial conditions are zero. Write the di erential equation corresponding to the following transfer function. 2s + 1 (s + 7) (s + 8) 2s + 1 s2 + 15s + 56. S2 + 15s + 56 x(s) = (2s + 1) r(s) s2x(s) + 15sx(s) + 56x(s) = 2sr(s) + r(s)
