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MatlabÔËËã½á¹ûµÄÖÃÐÅÇø¼äºÜ´ó£¬ºÍʲôÓйØÏµÄØ£¿ function KineticsEst6 clear all clc tspan = [0 662.25]; k0 = [0.4587 0.4971 10 12 6 8 205 0.5653]; lb = [0 0 0 0 0 0 0]; ub = [50 50 100 100 50 50 1000 50]; P0 =[0.04020 4.02010 0.18794 0 0; 0.02228 4.45682 0.10418 0 0; 0.01541 4.62428 0.07206 0 0; 0.01336 4.67446 0.06244 0 0; 0.04020 4.02010 0.18794 0 0; 0.04020 4.02010 0.18794 0 0; 0.04020 4.02010 0.18794 0 0 ]; % ³õʼ·Öѹ,MPa Pi=[0.01303 4.00374 0.96404 0.007095 0.012097; 0.00393 4.44636 0.53626 0.074475 0.005998; 0.00127 4.61707 0.37150 0.070931 0.003074; 0.00090 4.66795 0.32206 0.066794 0.002414; 0.00243 4.00519 0.96961 0.158768 0.006883; 0.00681 4.00390 0.96766 0.117792 0.009855; 0.01303 4.00374 0.96404 0.070945 0.012097 ]; % ¾¹ýWc/F0ºó£¬¸÷ÎïÖÊ·Öѹ,MPa % ʹÓú¯Êýlsqnonlin()½øÐвÎÊý¹À¼Æ options=optimset('MaxFunEvals',1000000,'MaxIter',400000) [k,resnorm,residual,exitflag,output,lambda,jacobian] = lsqnonlin(@ObjFunc,k0,lb,ub,[],P0,Pi); ci = nlparci(k,residual,jacobian); fprintf('\n\nʹÓú¯Êýlsqnonlin()¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ:\n') fprintf('\tk1 = %.4f ¡À %.4f\n',k(1),ci(1,2)-k(1)) fprintf('\tk2 = %.4f ¡À %.4f\n',k(2),ci(2,2)-k(2)) fprintf('\tk3 = %.4f ¡À %.4f\n',k(3),ci(3,2)-k(3)) fprintf('\tk4 = %.4f ¡À %.4f\n',k(4),ci(4,2)-k(4)) fprintf('\tk5 = %.4f ¡À %.4f\n',k(5),ci(5,2)-k(5)) fprintf('\tk6 = %.4f ¡À %.4f\n',k(6),ci(6,2)-k(6)) fprintf('\tk7 = %.4f ¡À %.4f\n',k(7),ci(7,2)-k(7)) fprintf('\tk8 = %.4f ¡À %.4f\n',k(8),ci(8,2)-k(8)) % ------------------------------------------------------------------ function f = ObjFunc(k,P0,Pi) % Ä¿±êº¯Êý [m,n] = size(P0); Pcal = zeros(m,n); tspan =[0 662.25]; % ¼´Wc/F0,g.h/mol for i = 1:m [t PP] = ode45(@Euqations,tspan,P0(i, ,[],k);Pcal(i, = PP(end, ;end f= Pcal-Pi; % ------------------------------------------------------------------ function dPdt = Euqations(t, P, k) % here t = Wc / F0 denom = 1+k(3)*P(1)+k(5)*P(4)+k(5)*P(3)+k(6)*P(5); % k(3) = KDMM, k(4) = KME ,k(5)=KHPM,k(6)=KPDO,k(7)=Kp1,k(8)=Kp2 theA =k(3)*P(1)*P(2)*(1-P(4)*P(3)/k(7)*P(1)*P(2)^2) / denom; theB =k(5)* P(4)*P(2)*(1-P(5)*P(3)/k(8)*P(4)*P(2)^2)/ denom; r1 = k(1)*theA; r2 = k(2)*theB; dPDMMdt = -r1; dPHdt = -2*r1-2*r2; dPMEdt = r1+r2; dPHPMdt = r1-r2; dPPDOdt = r2; dPdt = [dPDMMdt;dPHdt;dPMEdt;dPHPMdt;dPPDOdt]; ʹÓú¯Êýlsqnonlin()¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ: k1 = 0.4599 ¡À 89509.6910 k2 = 0.4971 ¡À 101889.0949 k3 = 10.0001 ¡À 1946900.8019 k4 = 12.0000 ¡À 8639183.4320 k5 = 5.9997 ¡À 420897.9438 k6 = 7.9999 ¡À 2837488.5903 k7 = 205.0000 ¡À 1472315356.6507 k8 = 0.5653 ¡À 3696268.6136 ½á¹ûºÍÎÒÉèµÄ³õÖµÒ»Ñù£¬ÊDz»ÊǾÍûÓмÆËã³ÌÐò¡£ |
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