Time history node - Y intercept not equal to zero

JM Desrosiers
JM Desrosiers Altair Community Member
edited November 2020 in Community Q&A

Hi everybody,

 

I have a problem while I'm using a time history node to obtain the agular velocity at a specific area in my model. The problem is that in hypergraph, the Y-Intercept (at time = 0) is not equal to zero as it should be. In fact, my model is a simple impact and at time = 0, the impact has not started yet, but my agular velocities in every plane is not equal to zero (1.57143).

 

is it a filter that I need to use? or something like that?

 

Thank you!

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2016

    Hi JM Desrosiers,

    ADXY is the angle between Displacement in X and Displacement in Y and as dummy moves from t=0 there can be variations in angle between displacements in X and Y direction.

  • JM Desrosiers
    JM Desrosiers Altair Community Member
    edited December 2016

    Oh ok the dummy is not supposed to move before the actual impact (hit by an impactor) but i'll take a look! Thanks!

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