How to integrate varying-size signals in simulink?
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I have a varying-size signal whose dimension changes based on input and integrator block does not accept variable-size signal. So, in that case which block shall I use or how to perform integration of varying-size signal?
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Sam Chak
2023-7-30
Hi @Dhruvit
If it is okay with you, could you please provide the system states and the ODEs for the nth-node flexible tether, so that the dynamics can be tested in MATLAB? If everything works well, then you can consider migrating the MATLAB code of the ODE part to Simulink (MATLAB Function block).
for i = 1:n
acceleration of i th node = -Damping (ith element)*velocity(ith node) - tension (ith node) / mass matrix of ith node
end
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Sam Chak
2023-8-1
Hi @Dhruvit
The error seems to indicate that there is a problem with the dimensions of your acceleration term (3xn matrix) when using the second-order integrator block. Try ensuring that the size of the acceleration term (3xn matrix) is consistent and defined properly. In Simulink, the inputs to blocks need to have fixed dimensions. Check if there is any inconsistency in the size of the matrix, and make sure that the number of columns (n) is defined and constant.
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