... th hai (W2) g m 1 khâu dao ng b c 2 (W21)có h m ph n h i ph (W 22) ứ ồ độ ậ à ả ồ ụ>> w21=tf( 120 .0,[0.45 0 1]) Transfer function: 120 0.45 s ^2 + 1 >> w 22= tf([15 0],[0 .25 1])Transfer ... Kớ3(s) =2/ (0,4s+1), K4(s)=5/(0,8s ^2+ 2*0,8*0,5s+1):>> w1=tf (2, [0.4 1]);>> w2=tf(5,[0.8 ^2 2*0.8*0.5 1]);>> w=w1+w2 Transfer function: 1 .28 s ^2 + 3.6 s + 7 0 .25 6 s^3 ... K4(s)=5/(0,8s 2 +1):>> w1=tf (2, [0.4 1]);>> w2=tf(5,[0.8 ^2 0 1]);>> w=w1+w2 Transfer function: 1 .28 s ^2 + 2 s + 7 0 .25 6 s^3 + 0.64 s ^2 + 0.4 s + 1 Ta tìm c h m s truy...