End a Simulation with a Sensor and Then Publish the End Time to a Variable.

Hi All,

I have a simulation that I end using a sensor. Thus the simulation end time is determined by when the sensor gets triggered.

Is there a way to send the end time of this simulation to a state or design variable?

Or is there a variable in ADAMS which reports the end time of the simulation (not CPU time).

I tried using the "Event Evaluation" feature in the sensor definition but no luck so far.

thanks,

joe.

0 jsph_inc 9 months ago

I had used "time" for the sensor event evaluation then created a state variable of SENVAL(id)...but ideally i'd like to just retrieve only the final end time.
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0 Henrik.Skovbjerg 9 months ago

Getting stuff out of the solver - you get a value for each time step. Hence, everything you do will give you an array of values. The TIME signal in the postprocessor shows you the end time when you look at the last value. Same for a state variable containing the function "TIME".

The SENVAL is probably your best option.
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0 jsph_inc 9 months ago

Thanks Henrik,

Perhaps I'm doing something wrong.

The sensor event evaluation = run-time expression = time

Then I have a state variable: sv=senval(id) where id=sensor id

When I plot the variable sv, its y values are all zero yet the sensor was triggered and stopped the simulation.

Ideally I'd like to have a variable that only contains one value of the end time...is this possible?
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0 Henrik.Skovbjerg 9 months ago

If the simulation would continue afterwards, the SENVAL output would give you the time at which the sensor triggered. But if the simulation is stopped, it seems that it does not give you anything.

It all depends on where you need the value.

If you need it during the continuation of the simulation, you can use the SENVAL.

If you need it afterwards during postprocessing, you could instead just take the last value of the TIME output from the analysis. You can get this by using this expression:

LAST( {.MODEL_1.Last_Run.TIME.values} )
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0 jsph_inc 9 months ago

Thanks Henrik for the help! Will try this out.
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