写一个二自由度阻尼振动系统的matlab建模代码
时间: 2024-06-02 07:13:20 浏览: 12
Sure, I can help you with that. Here is the MATLAB code for a two-degree-of-freedom damped vibration system:
% Parameters
m1 = 1; % mass of first degree of freedom
m2 = 2; % mass of second degree of freedom
k1 = 3; % stiffness of first degree of freedom
k2 = 4; % stiffness of second degree of freedom
b1 = 0.1; % damping of first degree of freedom
b2 = 0.2; % damping of second degree of freedom
% State space representation
A = [0 1 0 0; (-k1/m1) (-b1/m1) (k1/m1) (b1/m1); 0 0 0 1; (k1/m2) (b1/m2) (-k1/m2-k2/m2) (-b1/m2-b2/m2)];
B = [0; 1/m1; 0; 0];
C = [1 0 0 0; 0 0 1 0];
D = [0; 0];
% System analysis
sys = ss(A,B,C,D);
tf_sys = tf(sys);
pole_sys = pole(sys);
zero_sys = zero(sys);
% Plotting the system response
T = 0:0.01:10;
u = zeros(size(T));
x0 = [1; 0; 0; 0];
[y, t, x] = lsim(sys, u, T, x0);
figure;
subplot(2,1,1);
plot(t, y(:,1), 'r', t, y(:,2), 'b');
xlabel('Time (sec)');
ylabel('Amplitude');
title('System response to initial conditions');
legend('Output 1', 'Output 2');
subplot(2,1,2);
plot(t, x(:,1), 'r', t, x(:,2), 'b', t, x(:,3), 'g', t, x(:,4), 'y');
xlabel('Time (sec)');
ylabel('State variables');
title('State variables over time');
legend('x1', 'x2', 'x3', 'x4');
I hope this helps! Please let me know if you have any questions.
相关推荐
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)