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Initial point is a local minimum. Optimization completed because the size of the gradient at the initial point is less than 1e-4 times the selected value of the function tolerance. ÊÔÁ˺öà³õÖµ¶¼ÊÇÕâÖÖÌáʾ ÐèÒªÔõô²é |
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4Â¥2018-07-05 15:42:29
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5Â¥2018-07-05 15:44:33
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Ö÷³ÌÐò clear clc A=textread('Benzene+Methanol.txt'); a=size(A,1); P=101.325; A12=630.8; A21=336.064; B12=0.451; for i=1:a x1(i)=A(i,2); x2(i)=A(i,3); x3=1-x1-x2; Texp(i)=A(i,1); gamma1exp(i)=A(i,7); gamma2exp(i)=A(i,8); end bata0=[2319 -90 -238 3000 -0.3 -0.3]; options = optimset('Algorithm','Levenberg-Marquardt','Display','iter','TolFun',1e-40,'MaxFunEvals',8000000,'MaxIter',150000,'TolX',1e-500); [beta,resnorm,residual,exitflag,output,lambda,jacobian]=... lsqnonlin(@ObjFunc,bata0,[],[],options,x1,x2,x3,Texp,gamma1exp,gamma2exp); gamma1cal = Vapor1Cal( beta,x1,x2,x3,Texp ); gamma2cal = Vapor2Cal( beta,x1,x2,x3,Texp ); fprintf('Estimated Parameters;\n') fprintf('\tA13=%.3f\n',beta(1)) fprintf('\tA31=%.3f\n',beta(2)) fprintf('\tA23=%.3f\n',beta(3)) fprintf('\tA32=%.3f\n',beta(4)) fprintf('\tA23=%.3f\n',beta(5)) fprintf('\tA32=%.3f\n',beta(6)) fprintf('\tThe sum of the squares is:%.6f\n',resnorm) fprintf('\tThe mean ¦¤gamma1 is:%.6f\n',mean(abs(residual))) fprintf('\tThe mean ¦¤gamma2 is:%.6f\n',mean(abs(residual))) fprintf('\tThe gamma1cal is:\n',gamma2cal) fprintf('\tThe gamma2cal is:\n',gamma2cal) ³ÌÐòÖÐ ObjFuncΪ function f=ObjFunc(beta,x1,x2,x3,Texp,gamma1exp,gamma2exp) gamma1cal=Vapor1Cal(beta,x1,x2,x3,Texp); gamma2cal=Vapor2Cal(beta,x1,x2,x3,Texp); f=(1-gamma1cal./gamma1exp).^2+(1-gamma2cal./gamma2exp).^2; end Vapor1CalΪ function gamma1cal= Vapor1Cal( beta,x1,x2,x3,Texp ) A12=630.8; A21=336.064; B12=0.451; t12=A12./Texp; t21=A21./Texp; t13=beta(1)./Texp; t31=beta(2)./Texp; t23=beta(3)./Texp; t32=beta(4)./Texp; G12=exp(-B12.*t12); G21=exp(-B12.*t21); G13=exp(-beta(5).*t13); G31=exp(-beta(5).*t31); G23=exp(-beta(6).*t23); G32=exp(-beta(6).*t32); gamma1cal=exp(((G21.*x2+G31.*x3).*(t21.*G21.*x2+t31.*G31.*x3))./(x1+G21.*x2+G31.*x3).^2+... (t12.*G12.*x2.^2+G12.*G32.*x2.*x3.*(t12-t32))./(G12.*x1+x2+G32.*x3).^2+... (t13.*G13.*x3.^2+G13.*G23.*x2.*x3.*(t13-t23))./(G13.*x1+G23.*x2+x3).^2); Vapor2CalΪ function gamma2cal = Vapor2Cal( beta,x1,x2,x3,Texp ) A12=630.8; A21=336.064; B12=0.451; t12=A12./Texp; t21=A21./Texp; t13=beta(1)./Texp; t31=beta(2)./Texp; t23=beta(3)./Texp; t32=beta(4)./Texp; G12=exp(-B12.*t12); G21=exp(-B12.*t21); G13=exp(-beta(5).*t13); G31=exp(-beta(5).*t31); G23=exp(-beta(6).*t23); G32=exp(-beta(6).*t32); gamma2cal=exp(((G32.*x3+G12.*x1).*(t32.*G32.*x3+t12.*G12.*x1))./(x2+G32.*x3+G12.*x1).^2+... (t23.*G23.*x3.^2+G23.*G13.*x1.*x3.*(t23-t13))./(G23.*x2+x3+G13.*x1).^2+... (t21.*G21.*x1.^2+G21.*G31.*x1.*x3.*(t21-t31))./(G21.*x2+G31.*x3+x1).^2); |

6Â¥2018-07-05 15:48:03
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7Â¥2018-07-05 15:52:05
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8Â¥2018-07-06 21:39:26









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