Can I Re-Activate an element after deactivate it using nodal distance sensors?

Diego CARO MARTIN
Diego CARO MARTIN Altair Community Member
edited May 2023 in Community Q&A

Hi everyone,

I have a spring element that should only work when the distance between two nodes is in a certain range.

My problem is that whenever I use a /SENSOR/DIST/ (Type 2), no matter which options I use in Isflag: if the spring is deactivated it does not come back to "activated" again, and the other way around (if it is activated, it does not deactivate with the sensor). I have the feeling that I am not setting up right the parameters Dmin and Dmax, as Isflag=2 seems to be designed for this purpose.

What I need:

If D<Dmax --> Spring is working (activated)

If D>Dmax --> Spring stops working (deactivated)

If D<Dmax again after that --> Spring works again (re-activated)

D: Distance between nodes.

The Spring element in question is /PROP/TYPE13 (SPR_BEAM)

Can anybody give me a hand?

Thanks!

 

 

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Answers

  • Mathis
    Mathis
    Altair Employee
    edited May 2023

    Hi Diego,

    I think what you are doing should work. Maybe you can share your model. 

    an other Idea could be to use the /ACTIV card to activate & desactivate the spring.

    I hope it helps.

    Regards,

    Mathis.

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