C Assuming The Simplified Cutting Force Control Model As Shown In Figure Q3 B Where R S Is Desired Force And X S I 1 (11.77 KiB) Viewed 29 times
C Assuming The Simplified Cutting Force Control Model As Shown In Figure Q3 B Where R S Is Desired Force And X S I 2 (11.83 KiB) Viewed 29 times
C Assuming The Simplified Cutting Force Control Model As Shown In Figure Q3 B Where R S Is Desired Force And X S I 3 (9.88 KiB) Viewed 29 times
(c) Assuming the simplified cutting force control model as shown in Figure Q3(b) where R(s) is desired force and X (s) is actual force. (i) Write the characteristic equation for the system. [3 marks] (ii) By using the Routh Hurwitz criterion, determine the range of K to ensure the system is stable. [5 marks]
(iii) Find the value of K for marginal stability. [3 marks] (iv) Find the actual location of the closed-loop poles when the system is marginally stable. [4 marks] (v) Calculate the steady state error for the input of 7u(t) and 7tu(t) and indicate which result produce less steady state error. I [6 marks]
Desired force R(s) Controller K Plant 1 s(s+3)(s+5)(s + 1) Figure Q3(b): Cutting system block diagram Actual force X(s)
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