braking force on chassis

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

when i am applying a deacceleration of 1120mm/sec^2 on the chassis it showing an error i am attaching the output file and the result file how it looks after applying deacceleration. i have also attached the orignal chassis image. applied deacceleartion is in +z axis. can anyone tell me why this is happening.

<?xml version="1.0" encoding="UTF-8"?>post-13310-0-47273300-1407231369_thumb.j

<?xml version="1.0" encoding="UTF-8"?>post-13310-0-79594400-1407231372_thumb.j

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2014

    Hi,

     

    please

     

    1. check if your units are consistent. (mm and sec for all relevant entities).

    2. check if your boundary conditions are sufficient (no rigid body mode)

     

    Best regards,

    Mario

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2014

    i have also tried putting the value of 9.81 m/sec^2 but the result is same

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited August 2014

    sagarsrm,

     

    As suggested above make sure the model is sufficiently constrained, more importantly also make sure there is no connectivity issue, go to tool > edges > preview equivalence and equivalence the nodes where there are connectivity issues. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2014

    Same as Rahul, I think you need check coincident nodes and do equivalence.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2014

    thank you there was some connectivity issue it has been resolved.

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