Simulink delay to a certain time

Question

yavier kristanto 2023-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1926175-simulink-delay-to-a-certain-time

回答： Animesh 2023-5-31

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.

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Answer 1

Animesh 2023-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/1926175-simulink-delay-to-a-certain-time#answer_1247349

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: