[引例2]稳定性定义 Tacoma narrows bridge 华盛顿州塔科马峡谷的大桥 Built July Ist,1940 Nov7h,1940 5 seconds School of Mechanical Engineering ME369-lecture 6.2 Shanghai Jiao Tong University Fal12015 引例3稳定性定义 R(s) E(s) G(s) C(s) C(s)=_ G(s) R(s)1-G(s)H(s) H(s) G(s)=5H(s)=0.1 ()=1 G(s)=10 H(s)=0.1 r)=1 G(s)=5 H(s)=0.2 School of Mechanical Engineering ME369-lecture 6.2 Shanghai Jiao Tong University Fall 2015 22 ME369-lecture 6.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University Tacoma narrows bridge 华盛顿州塔科马峡谷的大桥 Built : July 1st ,1940 Nov 7th , 1940 [引例2]稳定性定义 5 seconds ME369-lecture 6.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University ( ) ( ) ( ) 1 ( ) ( ) C s G s R s G s H s   G s( ) 5  H s( ) 0.1  r t( ) 1  G s( ) 10  H s( ) 0.1  G s( ) 5  H s( ) 0.2  r t( ) 1  [引例3]稳定性定义