Simulink delay to a certain time

hai, i encounter a problem running dynamic system in simulink

it composed of 2 equation of motion (in acceleration) which chosed or triggered when the displacement exceed certain point. when i run and plot the acceleration vs displacement figure, there always become many line instead of just 1 line due to the system not calculate that certain point. to be more precise, the 1st EOM result in a displacement that exceed that certain point then it use the 2nd EOM to get the acceleration, and vice versa. i want simulink to calculate that certain point first before pass that point, is there any way to do that ? one of my approach is by using delay block based on the distance needed at that step / velocity at that step, but the result still the same.

Answer 1

[Animesh]

Hi Yavier,

I understand that you want to delay an output for a certain amount of time. You can achieve this in two ways: -

• Using "clock" block – You can use clock block to get the current simulation time and use it to delay output from a block.
• Using "MATLAB Function" block – You can use a MATLAB function block to add delay to an output.

You can read more about these blocks here:

• Clock - https://www.mathworks.com/help/simulink/slref/clock.html
• MATLAB Function - https://www.mathworks.com/help/simulink/slref/matlabfunction.html