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solving the equation by using matlab

1 次查看（过去 30 天）
saman ahmadi
saman ahmadi 2020-8-6
关闭： MATLAB Answer Bot 2021-8-20
Hi. i want to solve the equation(detA) at code. how can i solve this equation? thank you
clear
clc
syms w qa
k1=200;
k2=70;
m1=0.1;
m2=0.064;
m3=0.03;
r=0.25
I2=0.006
M1=(m2+m3)/m1;
M2=m2/m1;
K=k2/k1;
I=I2/(m2*r^2);
wn1=sqrt(k1/m1);
wn2=sqrt(2*k2/m3);
W1=w/wn1;
W2=w/wn2;
A=[-(1+M1)*W1^2+2-2*cos(qa) -M2*W1^2 -(M1-M2)*W1^2;-W1^2 I*W1^2+(2*K)/M2 -K/M2;-W2^2 -0.5 1-W2^2];
detA=det(A)

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