結(jié)構(gòu)振動(dòng)的主動(dòng)控制算法之線性二次型

1、 % 求受控結(jié)構(gòu)的頻率和阻尼比（=100） for i=1:9 switch i case 1, gm1=eig(A-B*G3; re_gm1=real(gm1; im_gm1=imag(gm1; wa1=sqrt(re_gm1.2+im_gm1.2;%受控結(jié)構(gòu)的頻率% zta1=abs(re_gm1./wa1;%受控結(jié)構(gòu)總阻尼比% case 2, gm2=eig(A-B*G4; re_gm2=real(gm2; im_gm2=imag(gm2; wa2=sqrt(re_gm2.2+im_gm2.2; zta2=abs(re_gm2./wa2; case 3, gm3=eig(A-B*G5;

2、re_gm3=real(gm3; im_gm3=imag(gm3; wa3=sqrt(re_gm3.2+im_gm3.2; zta3=abs(re_gm3./wa3; case 4, gm4=eig(A-B*G6; re_gm4=real(gm4; im_gm4=imag(gm4; wa4=sqrt(re_gm4.2+im_gm4.2; zta4=abs(re_gm4./wa4; case 5, gm5=eig(A-B*G7; re_gm5=real(gm5; im_gm5=imag(gm5; wa5=sqrt(re_gm5.2+im_gm5.2; zta5=abs(re_gm5./wa5;

3、case 6, gm6=eig(A-B*G8; re_gm6=real(gm6; im_gm6=imag(gm6; wa6=sqrt(re_gm6.2+im_gm6.2; zta6=abs(re_gm6./wa6; case 7, gm7=eig(A-B*G9; re_gm7=real(gm7; im_gm7=imag(gm7; wa7=sqrt(re_gm7.2+im_gm7.2; 16 zta7=abs(re_gm7./wa7; case 8, gm8=eig(A-B*G2012; re_gm8=real(gm8; im_gm8=imag(gm8; wa8=sqrt(re_gm8.2+im

4、_gm8.2; zta8=abs(re_gm8./wa8; case 9, gm9=eig(A-B*G4014; re_gm9=real(gm9; im_gm9=imag(gm9; wa9=sqrt(re_gm9.2+im_gm9.2; zta9=abs(re_gm9./wa9; otherwise, gm10=; end end % 受控結(jié)構(gòu)的第一頻率和附加阻尼比（=100）與無(wú)控結(jié)構(gòu)第一頻率比（此處取無(wú)控結(jié)構(gòu)阻尼比都為 0.05） plbw=wa1(10 wa2(10 wa3(10 wa4(10 wa5(10 wa6(10 wa7(10 wa8(10 wa9(10/w_eig(1; ztval=zta1(10 zta2(10