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Time history node - Y intercept not equal to zero

User: "JM Desrosiers"
Altair Community Member
Updated by JM Desrosiers

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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    User: "Altair Forum User"
    Altair Employee
    Updated by Altair Forum User

    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.

    User: "JM Desrosiers"
    Altair Community Member
    OP
    Updated by JM Desrosiers

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