[例4]方块图化简 品 R(s) GG.G, C(s) 1-GG,H+G,G H,+GGG H,G← GG,G, C(s) 1-GG,H,+G,G H, H:/G GG☐ C(8) 1-GG School of Mechanical Engineering ME369-Lecture 4.2 Shanghai Jiao Tong University Fa12015 例5]方块图化简 68ma✉； -8 Gus ☆ 卤 卤 G GGe ②@四②团 ②四⑧四 8 G(s)=Gz(s)[G4,(s)+G53(s)G45(s】 c(s) G(s) G G,(9= 1+G24(s)G(s) C(s)_Gp(s)G,(s)Gas(s)Gs(s) R(s)1+G2(s)G,(s)Gxs(s)Gs(s) School of Mechanical Engineering ME369-Lecture 4.2 Shanghai Jiao Tong University Fall 2015 99 ME369-Lecture 4.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University [Reduction method 例4]方块图化简–example (1) ME369-Lecture 4.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 32 43 53 45 ( ) ( )[ ( ) ( ) ( )] G s G s G s G s G s a   24 24 ( ) ( ) 1 ( ) ( ) b a G s G s G s G s   12 45 51 12 45 51 ( ) ( ) ( ) ( ) ( ) ( ) 1 ( ) ( ) ( ) ( ) b b C s G s G s G s G s R s G s G s G s G s   [例5]方块图化简