Altering the time-step size.

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Manahara Manatunga
评论： Walter Roberson 2023-9-24
Hi all,
I am trying to model an engine on Simulink. The engine has a non-uniform RPM rate, which depends on the torque and the moment of inertia of the flywheel mass.
I want to step the simulation every 0.25 degrees. Since the RPM is not constant, the time taken to crank the engine by 0.25 degrees varies. Is there any way I can define the time step size while running the simulation?
This way I can adjust the time step to always increment the crank angle by 0.25 degrees every time step.
Thanks in advance.
Manahara

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回答（1 个）

kintali narendra
kintali narendra 2023-9-24
use a ramp signal to with a slope of 0.25
  1 个评论
Walter Roberson
Walter Roberson 2023-9-24
That would be a constant slope, and the time taken to crank the engine by 0.25 degrees would always be the same. However, @Manahara Manatunga has a situation where the time required to turn by a fixed angle varies.

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