solve first order matrix

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Alexi 2022-3-3

评论： Alexi 2022-3-3

syms lamda_0 lamda_s lamda_c

Cl=1;

Cm=1;

Ct=1;

lamda_f=1;

mu_r=1;

lamda=0.1+lamda_f;

a=atan(abs(lamda)/mu_r);

VT=sqrt(mu_r^2+lamda^2);

v=(mu_r^2+(lamda+0.1)*lamda)/VT;

V=[VT,0,0; 0,v,0; 0,0,v];

L=[0.5,0,(-15/64)*pi*sqrt((1-sin(a))/(1+sin(a))); 0,(4/(1+sin(a))),0; (15/64)*pi*sqrt((1-sin(a))/(1+sin(a))),0,(4*sin(a)/(1+sin(a)))];

L_1=inv(L);

M=(1/pi)*[(128/75),0,0; 0,(16/45),0; 0,0,(16/45)];

A=V*L_1; %dif vector

B=[Ct; Cl; Cm];

Y=[lamda_0;lamda_s;lamda_c];

odes = diff(Y)*M == (B-(A*Y));

%how to find lamda_0 lamda_c lamda_s

Alexi 2022-3-3

ı solved thank you

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R2019a

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